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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 1835. Отображено 100.
04-04-2013 дата публикации

POLYARYLENE BLOCK COPOLYMER HAVING SULFONIC ACID GROUP AND USE THEREOF

Номер: US20130085236A1
Автор: Kadota Toshiaki, MURAKAMI Takuya, Tsunoda Yuuji, Yamakawa Yoshitaka
Принадлежит: JSR Corporation

A polyarylene block copolymer can provide a solid polymer electrolyte and proton conductive membrane having high proton conductivity, high dimensional stability, and high mechanical strength. The polyarylene block copolymer also has reduced swelling in hot water and reduced shrinkage in drying. The polyarylene block copolymer includes a polymer segment having a sulfonic acid group, and a polymer segment having substantially no sulfonic acid group. 3. The polyarylene block copolymer according to claim 1 , wherein claim 1 , in the formula (1) claim 1 , p is of from 2 to 150.4. The polyarylene block copolymer according to claim 1 , wherein the copolymer comprises the structural unit represented by the formula (1-1) and comprises the structural unit represented by the formula (1-2) in a molar ratio (1-1:1-2) of 100:0 to 50:50.7. A polymer electrolyte comprising the polyarylene block copolymer of .8. A proton conductive membrane comprising the polyarylene block copolymer of .9. A membrane electrolyte assembly comprising a membrane comprising the polymer electrolyte of .10. A fuel cell comprising the proton conductive membrane of . The present invention relates to a novel polyarylene block copolymer having a sulfonic acid group, and a solid polymer electrolyte and a proton conductive membrane comprising the polyarylene block copolymer having a sulfonic acid group.Electrolyte is usually used in liquid state, such as aqueous electrolyte solutions, but recently the tendency has been increasing to use solid electrolytes. This tendency is firstly because those solid electrolytes have good processability in application in electric and electronic materials, and secondly because of the requirement to overall size and weight reduction and electric power saving.Inorganic and organic proton conductive materials have been known. As the inorganic materials, hydrates such as uranyl phosphate are used. However, it is difficult that the inorganic materials are enough contacted with ...

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Номер записи: 1
02-05-2013 дата публикации

Quasi-block Copolymer Melts, Processes for Their Preparation and Uses Thereof

Номер: US20130109805A1
Автор: Daoulas Kostas, MULLER Marcus, Nealey Paul F., SHENHAR Roy
Принадлежит:

The present invention provides block copolymers comprising at least one covalent polymer block and at least one supramolecular polymer block, processes for their preparations and uses thereof. 1. A block copolymer comprising:at least one covalent polymer block andat least one supramolecular polymer block;wherein said copolymer is in a form of a melt.2. A block copolymer according to claim 1 , wherein the volume fraction between said at least one covalent polymer block and at least one supramolecular polymer block is between about 0.1 to about 0.9.3. A block copolymer according to claim 1 , wherein said at least one covalent polymer block is selected from polystyrene claim 1 , poly(2-vinyl pyridine) claim 1 , poly(4-vinyl pyridine) claim 1 , poly(methyl methacrylate) claim 1 , poly(n-butyl acrylate) poly(ethylene oxide) claim 1 , poly(propylene oxide) claim 1 , poly(1 claim 1 ,4-butadiene) claim 1 , poly(1 claim 1 ,2-butadiene) claim 1 , polyisoprene and any combination thereof.4. A block copolymer according to claim 1 , wherein the monomers of said supramolecular polymer block are connected via non-covalent bonds selected from hydrogen bonds claim 1 , electrostatic bonds claim 1 , ionic bonds claim 1 , metal-ligand coordination bonds claim 1 , π-stacking claim 1 , or any combination thereof.5. A block copolymer according to claim 1 , wherein said at least one supramolecular block is selected from EHUT claim 1 , bis-UPy claim 1 , UPy-NAPy claim 1 , thymine-diamidopyridine claim 1 , bis-terpyridine claim 1 , and any combination thereof.6. A method of forming a nanostructure having a pattern claim 1 , said method comprising:(a) providing a patterned substrate;{'claim-ref': {'@idref': 'CLM-00001', 'claims 1'}, 'b': '6', '(b) depositing a layer of a block copolymer according to any one of - on said substrate to form a layered substrate; and'}(c) subjecting the layered substrate to conditions that cause said block copolymer to order in accordance with the underlying ...

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Номер записи: 2
16-05-2013 дата публикации

ELECTROSTATICALLY BONDED VESICLE

Номер: US20130122103A1
Автор: Anraku Yasutaka, Kataoka Kazunori, Kishimura Akihiro, Koide Aya, Lee Stephanie, Sakai Mitsuru, Yu Qiuming
Принадлежит:

The purpose of the present invention is to provide an electrostatically bonded vesicle which bears disulfide bonds or thiol groups. The present invention relates to a vesicle having a membrane which is formed from both a first polymer of (a) or (b) and a second polymer of (c) or (d) (with the proviso that a combination of (b) and (d) is excepted) and in which the cationic segment and anionic segment of the polymers are partially crosslinked. First polymer: (a) a block copolymer (I) having both an electrically non-charged hydrophilic segment and a cationic segment, (b) an amino acid polymer (I) having a cationic segment. Second polymer: (c) a block copolymer (II) having both an electrically non-charged hydrophilic segment and an anionic segment, (d) an amino acid polymer (II) having an anionic segment. 1. A vesicle having a membrane which is formed from both a first polymer of (a) or (b) and a second polymer of (c) or (d) (with the proviso that a combination of (b) and (d) is excepted) and in which the cationic segment and anionic segment of the polymers are partially crosslinked , wherein the first polymer is: (a) a block copolymer (I) having both an electrically non-charged hydrophilic segment and a cationic segment; or (b) an amino acid polymer (I) having a cationic segment , and the second polymer is: (c) a block copolymer (II) having both an electrically non-charged hydrophilic segment and an anionic segment; or (d) an amino acid polymer (II) having an anionic segment.2. The vesicle according to claim 1 , wherein a crosslinked site has a structure comprising disulfide bonds.3. The vesicle according to claim 1 , wherein the membrane has a three-layer structure consisting of an outer layer claim 1 , an intermediate layer and an inner layer claim 1 , and wherein the outer layer and the inner layer are composed of the electrically non-charged hydrophilic segment and the intermediate layer is composed of the cationic segment and the anionic segment.4. The vesicle ...

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Номер записи: 3
23-05-2013 дата публикации

Drug Carrier with Chelating Complex Micelles and the Application thereof

Номер: US20130131283A1
Автор: Chen Chia-Hung, Chen Jing-Yi, Liao Wei-Chuan, Lin Johnson, Wang Chau-Hui
Принадлежит: Original Biomedicals, Co., Ltd.

This invention provides Chelating Complex Micelles as a drug carrier. The Chelating Complex Micelles can load drugs without changing their structure, and therefore extend the half-life of drugs in the human body. The chelating complex micelles contain a metal ion core, at least one polymer, and at least one drug molecule. The metal ion is considered as a Lewis acid while polymer chain and drug molecules are referred to as Lewis bases. The drug molecule is linked to the polymer via forming coordinate bonds with metal ion, and then self-assembled to form chelating complex micelles as a drug carrier. 1. A chelating complex micelle , comprising:a metal ion core, wherein the metal ion core is a Lewis acid;a ligand, wherein the ligand and the metal ion core bind to each other by coordinate bonds; anda drug, linking to the metal ion core via coordinate bonding, wherein the drug is a Lewis base.2. The chelating complex micelle of claim 1 , wherein the metal ion core is selected from the following lists: either single one or any combination thereof claim 1 , or derivatives thereof: Fe claim 1 , Cu claim 1 , Ni claim 1 , In claim 1 , Ca claim 1 , Co claim 1 , Cr claim 1 , Gd claim 1 , Al claim 1 , Sn claim 1 , Zn claim 1 , W claim 1 , Sc claim 1 , Ti claim 1 , Mn claim 1 , V claim 1 , Mg claim 1 , Be claim 1 , La claim 1 , Au claim 1 , Ag claim 1 , Cd claim 1 , Hg claim 1 , Pd claim 1 , Re claim 1 , Tc claim 1 , Cs claim 1 , Ra claim 1 , Ir claim 1 , Ga.3. The chelating complex micelle of claim 1 , wherein the ligand is selected from the following lists: either single one or any combination thereof claim 1 , or derivatives thereof: carboxylic acids claim 1 , alcohols claim 1 , ketones claim 1 , furans claim 1 , amines claim 1 , anilines claim 1 , pyrroles claim 1 , thiols claim 1 , esters claim 1 , amides claim 1 , imines claim 1 , pyridines claim 1 , pyrimidines claim 1 , imidazoles claim 1 , pyrazols claim 1 , sulfonamides claim 1 , phosphonic acid.4. The chelating complex ...

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Номер записи: 4
27-06-2013 дата публикации

POLYLACTIC ACID BLOCK COPOLYMER

Номер: US20130165601A1
Автор: Naotsuka Takuma, Ome Hiroyuki, Sudo Ken, Takahashi Yoshitake
Принадлежит: Toray Industries, Inc.

A polylactic acid block copolymer constituted by a poly-L-lactic acid segment(s) contains as a major component L-lactic acid and a poly-D-lactic acid segment(s) contains as a major component D-lactic acid, the polylactic acid block copolymer satisfying Inequalities (1) and (2): Sc=ΔHh/(ΔHl+ΔHh)×100>80 (1); 1<(Tm−Tms)/(Tme−Tm)<1.8 (2). The polylactic acid block copolymer has excellent transparency, heat resistance and mechanical properties, which forms a polylactic acid stereocomplex. 2. The polylactic acid block copolymer according to claim 1 , wherein claim 1 , in the molecular weight distribution of said polylactic acid block copolymer claim 1 , a ratio of weight average molecular weights of not less than 100 claim 1 ,000 is not less than 40%.3. The polylactic acid block copolymer according to claim 1 , wherein claim 1 , in DSC measurement of said polylactic acid block copolymer claim 1 , cooling crystallization temperature is not less than 130° C. when the temperature of said polylactic acid block copolymer is increased to 250° C. and then kept constant for 3 minutes claim 1 , followed by decreasing the temperature at a cooling rate of 20° C./min.4. The polylactic acid block copolymer according to claim 1 , wherein polydispersity represented by a ratio between weight average molecular weight and the number average molecular weight is not more than 2.7.5. The polylactic acid block copolymer according to claim 1 , wherein average sequence length of L-lactic acid units and D-lactic acid units in said polylactic acid block copolymer is not less than 20.6. The polylactic acid block copolymer according to claim 1 , wherein a weight ratio between the L-lactic acid component and the D-lactic acid component in said polylactic acid block copolymer is 80/20 to 60/40 or 40/60 to 20/80.7. The polylactic acid block copolymer according to claim 1 , whose weight average molecular weight is not less than 100 claim 1 ,000.10. The polylactic acid block copolymer according to claim ...

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Номер записи: 5
31-10-2013 дата публикации

NON-AQUEOUS COMPOSITIONS AND METHODS FOR BONE HEMOSTASIS

Номер: US20130287818A1
Автор: Goessl Andreas, Gorna Katarzyna I., Gulle Heinz
Принадлежит:

Bone hemostat compositions, and methods for their use and manufacture are provided. Exemplary hemostatic compositions include polymeric components such as random and non-random copolymers, natural polymers, ceramics, reactive group polymers, and combinations thereof. Bone compositions may be used during surgical procedures, and may be applied to bone to inhibit or prevent bleeding from bone. 1. A biocompatible composition for use as a bone hemostat , the composition comprising:a polyoxyethylene-polyoxypropylene block copolymer having a molecular weight (Mw) within a range from about 9800 Mw to about 16300 Mw,wherein the biocompatible composition is present in a nonaqueous form.2. The biocompatible composition according to claim 1 , wherein the polyoxyethylene-polyoxypropylene block copolymer is a triblock copolymer.3. The biocompatible composition according to claim 1 , wherein the polyoxyethylene-polyoxypropylene block copolymer has a molecular weight (Mw) within a range from about 9800 Mw to about 14600 Mw.4. The biocompatible composition according to claim 1 , wherein the block copolymer comprises a percentage of polyethylene oxide within a range from about 60% to about 80%.5. The biocompatible composition according to claim 1 , wherein the block copolymer comprises a percentage of polypropylene oxide within a range from about 20% to about 40%.6. The biocompatible composition according to claim 1 , wherein the polyoxyethylene-polyoxypropylene block copolymer comprises 202 ethylene oxide units and 56 propylene oxide units.7. The biocompatible composition according to claim 1 , further comprising a random alkylene oxide copolymer claim 1 , wherein:the polyoxyethylene-polyoxypropylene block copolymer is present within a range from about 45% to about 80% by weight of the composition, andthe random alkylene oxide copolymer is present within a range from about 20% to about 55% by weight of the composition.8. The biocompatible composition according to claim 1 , further ...

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Номер записи: 6
07-11-2013 дата публикации

COPOLYMERS COMPRISING POLYAMIDE BLOCKS AND POLYETHER BLOCKS AND HAVING IMPROVED MECHANICAL PROPERTIES

Номер: US20130296502A1
Автор: Malet Frederic
Принадлежит: Arkema France

The invention relates to a process for producing a shaped article having excellent mechanical properties, said article comprising a block copolymer PAX.Y/PE comprising polyamide (PA) blocks alternating with polyether (PE) blocks, prepared from homopolyamide blocks PAX.Y by polycondenstation of linear aliphatic diamines where PAX.Y is selected from the group consisting of PA 10,12; PA 6,18; PA 10,14; and PA 12.12, reacted with polyether PE blocks in the presence of a catalyst to produce a block copolymer PAX.Y/PE, wherein said PE blocks are either PE diols, or PE blocks comprising NHends. The articles formed are either a fabric, film, sheet, rod, pipe, injection-molded component, or a shoe sole; the copolymer PAX.Y/PE has an improved flexural modulus of at least 300 MPa greater than a copolymer polyamide 12/polytetrametylene with the same size of PA block and with the same size of PE block respectively. 2. The copolymer as claimed in claim 1 , characterized in that the 100 to 61% of polyether is chosen from PTMG claim 1 , PPG or their blends.3. The process as claimed in claim 1 , wherein the number-average molecular weight of the PA blocks is between 500 and 10 000.4. The process as claimed in claim 1 , wherein the number-average molecular weight of the PE blocks is between 250 and 5000.5. The process as claimed in claim 1 , wherein the number-average molecular weight of said copolymer is between 5000 and 50 000.6. The process as claimed in claim 1 , wherein the PA blocks advantageously represent between 5 and 95% by weight of the sum of the PA blocks and PE blocks of said copolymer.7. The process as claimed in claim 1 , wherein steps a) polycondensation claim 1 , and step b) reaction are carried out as a single step.8. The process as claimed in claim 1 , wherein said catalyst comprises a derivative of a metal chosen from the group consisting of titanium claim 1 , zirconium and hafnium claim 1 , phosphoric acid or boric acid.9. The process as claimed in claim 1 , ...

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Номер записи: 7
21-11-2013 дата публикации

Induced polymer assemblies

Номер: US20130310525A1
Автор: James J. Watkins, Vikram K. Daga, Ying Lin
Принадлежит: University of Massachusetts UMass

The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.

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Номер записи: 8
09-01-2014 дата публикации

Photonic structures from self assembly of brush block copolymers and polymer blends

Номер: US20140011958A1
Автор: Garret M. MIYAKE, Raymond WEITEKAMP, Robert H. Grubbs, Victoria PIUNOVA
Принадлежит: California Institute of Technology CalTech

The invention provides a class of block copolymers having a plurality of chemically different blocks, at least a portion of which incorporating polymer side chain groups having a helical secondary structure. The invention also provides structures generated by self-assembly of polymer blends including at least one block copolymer component, such as a brush block polymer or wedge-type block polymer. The invention provides, for example, periodic nanostructures and microstructures generated by self-assembly of block copolymers and polymer blends comprising a mixture of at least one block copolymer component, such as a brush block copolymer, and at least a second component.

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Номер записи: 9
01-01-2015 дата публикации

Grafted polymers as oleophobic low adhesion anti-wetting coatings for printhead applications

Номер: US20150002581A1
Автор: Chakkaravarthy Chidambareswarapattar, David J. Gervasi, Mandakini Kanungo, Matthew M. Kelly, Michael S. Roetker, Santokh S. Badesha, Varun Sambhy
Принадлежит: Xerox Corp

An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer.

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Номер записи: 10
07-01-2016 дата публикации

HYDROPHILIC FLUOROPOLYMER

Номер: US20160002413A1
Автор: "DI NICOLO Emanuele", BIANCARDI Roberto, CAMPANELLI Pasquale, Sanguineti Aldo, TONELLI Claudio Adolfo Pietro, Wlassics Ivan
Принадлежит: Solvay Specialty Polymers Italy S.p.A

The present invention pertains to a process for the manufacture of a grafted fluoropolymer [polymer (Fg)], said process comprising reacting: A) at least one fluoropolymer comprising at least one functional group selected from the group consisting of a hydroxyl group and a carboxylic acid group [polymer (F)], B) at least one polyoxyalkylene (POA) of formula (I): R—(CH—O)—(CHCHRO)—(CH—O)—R, wherein at least one of Rand Ris a reactive group comprising at least one heteroatom selected from oxygen and nitrogen different from the hydroxyl group, the remaining, if any, being a —[O]—CHalkyl group, wherein z is 0 or 1, Ris a hydrogen atom or a C-Calkyl group, x and x′, equal to or different from each other, are independently 0 or 1, and n is an integer comprised between 2 and 1000, preferably between 5 and 200, C) optionally, in the presence of at least one catalyst, and D) optionally, in the presence of at least one organic solvent (S). The present invention also pertains to grafted fluoropolymers obtained from said process and to uses of said grafted fluoropolymers for manufacturing porous membranes. 1. A process for the manufacture of a grafted fluoropolymer [polymer (Fg)] , said process comprising reacting:(A) at least one fluoropolymer comprising at least one functional group selected from the group consisting of a hydroxyl group and a carboxylic acid group [polymer (F)], and {'br': None, 'sub': B', '2', 'x', '2', 'A', 'n', '2', 'x′', 'C, 'R—(CH—O)—(CHCHRO)—(CH—O)—R\u2003\u2003(I)'}, '(B) at least one polyoxyalkylene (POA) of formula (I){'sub': B', 'C', 'B', 'C', 'z', '3', 'A', '1', '5, 'wherein at least one of Rand Ris a reactive group comprising at least one heteroatom selected from oxygen and nitrogen wherein the reactive group is not a hydroxyl group, and wherein the remaining of Rand R, if any, are selected from —[O]—CHalkyl groups, wherein z is 0 or 1, Ris a hydrogen atom or a C-Calkyl group, x and x′, equal to or different from each other, are independently 0 or ...

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Номер записи: 11
07-01-2021 дата публикации

BIODEGRADABLE BLOCK COPOLYMER

Номер: US20210002432A1
Автор: Fujita Masaki, Kidoba Kazuyuki, Kogawa Taisuke, Koyamatsu Yuichi, Tanahashi Kazuhiro
Принадлежит:

A biodegradable block copolymer has high conformability and excellent degradability. The block copolymer including a polyalkylene glycol block and a polyhydroxyalkanoic acid block, wherein the mass ratio of the polyalkylene glycol block with respect to the total mass is 10 to 60%; the carbonyl carbon has a carbon nuclear relaxation time T1ρ of not more than 20 ms; and the block copolymer satisfies Equation (1): χ=χ1×χ2>20 (1) χ1: crystallization rate of the polyalkylene glycol block; χ2: crystallization rate of a poly-A block, wherein A represents, among the repeat units contained in the polyhydroxyalkanoic acid block, a repeat unit whose homopolymer composed of the same repeat units has a highest crystallization rate. 19.-. (canceled)11. The block copolymer according to claim 10 , wherein the polyhydroxyalkanoic acid block comprises a repeat unit derived from a monomer selected from the group consisting of lactic acid claim 10 , glycolic acid claim 10 , and caprolactone.12. The block copolymer according to claim 10 , wherein a mass ratio of the repeat unit derived from caprolactone with respect to the total mass of the block copolymer is 20 to 80%.13. The block copolymer according to claim 10 , wherein the weight average molecular weight of the polyalkylene glycol block is 7 claim 10 ,000 to 170 claim 10 ,000.18. A medical material comprising: the block copolymer according to ; and a molded article to be coated with the block copolymer.19. A medical material comprising: the block copolymer according to ; and a molded article to be coated with the block copolymer.20. A medical material comprising: the block copolymer according to ; and a molded article to be coated with the block copolymer.21. A medical material comprising: the block copolymer according to ; and a molded article to be coated with the block copolymer.22. A medical material comprising: the block copolymer according to ; and a molded article to be coated with the block copolymer.23. A medical material ...

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Номер записи: 12
01-01-2015 дата публикации

Method of Sulfonation of Block Polymers

Номер: US20150005439A1
Автор: Dado Gregory Paul, Handlin, JR. Dale Lee, Willis Carl Lesley
Принадлежит:

Improved methods for preparing sulfonated block polymers with acyl sulfates in non-halogenated aliphatic solvents are provided. The methods include the sulfonation of a precursor block polymer with an acyl sulfate in a reaction mixture further comprising at least one non-halogenated aliphatic solvent to form a sulfonated block polymer, wherein the initial concentration of the precursor block polymer is in the range of from about 0.1 wt % to a concentration that is below the limiting concentration of the precursor block polymer based on the total weight of the reaction mixture. A sulfonation degree of greater than about 1.0 milliequivalent sulfonic acid per gram sulfonated block polymer can be achieved substantially free of polymer precipitation and free of disabling gelation. 1. A process for preparing sulfonated block polymers in non-halogenated aliphatic solvents , comprising the steps of:providing a precursor block polymer having at least one end block A and at least one interior block B wherein each A block is a polymer block resistant to sulfonation and each B block is a polymer block susceptible to sulfonation, wherein said A and B blocks are substantially free of olefinic unsaturation; andreacting the precursor block polymer with an acyl sulfate having an acyl group of from 2 to 8 carbon atoms, in a reaction mixture that comprises at least one non-halogenated aliphatic solvent and is substantially free of halogenated solvents, to form a sulfonated block polymer, wherein the initial concentration of the precursor block polymer is in the range of from about 0.1 wt % to a concentration that is below the limiting concentration of the precursor block polymer based on the total weight of the reaction mixture; wherein the sulfonation reaction is conducted in a manner that is substantially free of polymer precipitation and free of disabling gelation in the reaction mixture; and wherein the sulfonated block polymer has a degree of sulfonation greater than 0.8 ...

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Номер записи: 13
07-01-2021 дата публикации

BINDER RESIN COMPOSITION FOR TONER

Номер: US20210003933A1
Автор: Murata Shoichi, SHIBATA Motomu
Принадлежит: KAO CORPORATION

Provided are a binder resin composition for toner excellent in low-temperature fusing property, storage stability and durability, a toner for developing electrostatic images that contains the binder resin composition for toner, and a method for producing the binder resin composition for toner. The binder resin composition for toner contains a resin composition (C-P) prepared by condensing an acid group-having crystalline resin (C) and a polyalkyleneimine, and an amorphous resin (A). 1. A binder resin composition for toner , comprising:a resin composition (C-P) prepared by condensing an acid group-having crystalline resin (C) and a polyalkyleneimine; andan amorphous resin (A).2. The binder resin composition for toner according to claim 1 , wherein a difference in a Fedors solubility parameter (SP value) between the crystalline resin (C) and the amorphous resin (A) is 1.3 (cal/cm)or less.3. The binder resin composition for toner according to claim 1 , wherein a ratio by mass of the amorphous resin (A) to the resin composition (C-P) [(A)/(C-P)] is 65/35 or more and 95/5 or less.4. The binder resin composition for toner according to claim 1 , wherein a proportion of the polyalkyleneimine is 0.05% by mass or more and 1% by mass or less relative to a total amount of the resin composition (C-P) and the amorphous resin (A).5. The binder resin composition for toner according to claim 1 , wherein a number-average molecular weight of the polyalkyleneimine is 800 or more and 10 claim 1 ,000 or less.6. The binder resin composition for toner according to claim 1 , wherein the crystalline resin (C) and/or the amorphous resin (A) is a polyester-based resin.7. The binder resin composition for toner according to claim 1 , wherein the crystalline resin (C) and the polyalkyleneimine are condensed at a temperature of 50° C. or higher and 235° C. or lower.8. A toner for developing electrostatic images claim 1 , comprising the binder resin composition of .9. A resin composition prepared ...

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Номер записи: 14
07-01-2016 дата публикации

Method for Preparing Electroconductive Polymer and Thermoelectric Device Comprising Electroconductive Polymer Film Prepared Using the Same

Номер: US20160005944A1
Автор: Kim Byeong Gwan, Kim Eun Kyoung, Park Chi Hyun, Park Tae Hoon, Shin Hai Jin
Принадлежит:

There are provided a method for producing an electroconductive polymer which can be operated at a low temperature such as the human body temperature, is safe to the human body, and is flexible and useful as a thermoelectric material, and a thermoelectric element including a thin film of an electroconductive polymer produced by the production method. 1. A method for producing an electroconductive polymer , the method comprising:a step of preparing an oxidizing solution including an oxidizing agent, a polymerization retarder, a copolymer containing a polyalkylene glycol as a constituent unit, and a solvent; anda step of polymerizing an electroconductive polymer by adding a monomer for forming an electroconductive polymer to the oxidizing solution and performing solution polymerization, or by applying the oxidizing solution to form a coating film, subsequently supplying the vapor of a monomer for forming an electroconductive polymer to the coating film, and performing vapor polymerization.2. The method for producing an electroconductive polymer according to claim 1 , wherein the oxidizing agent is any one selected from the group consisting of ammonium persulfate claim 1 , DL-tartaric acid claim 1 , polyacrylic acid claim 1 , copper chloride claim 1 , ferric chloride claim 1 , iron toluenesulfonate claim 1 , β-naphthalenesulfonic acid claim 1 , p-toluenesulfonic acid claim 1 , camphorsulfonic acid claim 1 , and mixtures thereof.3. The method for producing an electroconductive polymer according to claim 1 , wherein the oxidizing agent is included at a proportion of 5% to 50% by weight relative to the total weight of the oxidizing solution.4. The method for producing an electroconductive polymer according to claim 1 , wherein the polymerization retarder is a basic substance having a pKa value of 3.5 to 12.5. The method for producing an electroconductive polymer according to claim 1 , wherein the polymerization retarder is included at a molar ratio of 0.1 to 2 with respect ...

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Номер записи: 15
14-01-2016 дата публикации

BLOCK COPOLYMER AND PRODUCTION METHOD OF THE SAME

Номер: US20160009868A1
Автор: Ichinose Keiko, Yamamoto Daisuke, YAMASHITA Kohei, Yamauchi Koji, Yokoe Makito
Принадлежит: Toray Industries, Inc.

A block comprised of a copolymer is obtained by ring-opening polymerization of a cyclic polyarylene sulfide, so that a block copolymer is produced to have a maximum peak molecular weight measured by size exclusion chromatography (SEC) in a range of not less than 2,000 and less than 2,000,000 and have a unimodal molecular weight distribution in this range. 1. A block copolymer , comprisingas a block comprised of the block copolymer, a polyarylene sulfide component block prepared from a cyclic polyarylene sulfide as raw material, whereina remaining block comprised of the block copolymer uses a cyclic compound different from the cyclic polyarylene sulfide as raw material, and the block copolymer has a maximum peak molecular weight measured by size exclusion chromatography (SEC) in a range of not less than 2,000 and less than 2,000,000 and having a unimodal molecular weight distribution in this range.5. The block copolymer according to claim 3 , comprising5 to 95% by weight of the polyphenylene sulfide component block expressed by the general formula (ii) and 95 to 5% by weight of at least one polymer component block selected from the group consisting of a polyamide, a polyester, a polycarbonate, a polysulfone and a poly(phenylene ether ether ketone).7. (canceled)8. A production method of a block copolymer claim 3 , comprising:(a) step of ring-opening polymerization of a cyclic polyarylene sulfide in the presence of an initiator; and(b) step of ring-opening polymerization of a cyclic compound different from the cyclic polyarylene sulfide in the presence of an initiator,wherein one step out of the step (a) and the step (b) is performed with mixing a product obtained in the other step with the cyclic compound used as raw material in one step.9. The production method of the block copolymer according to claim 8 ,wherein the cyclic compound used in the step (b) is one cyclic compound selected from the group consisting of a cyclic amide, a cyclic ester, a cyclic polycarbonate ...

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Номер записи: 16
08-01-2015 дата публикации

High-Molecular Weight Conjugate Of Resorcinol Derivatives

Номер: US20150011715A1
Автор: Kitagawa Masayuki, Nakamura Masaharu, Seno Chieko, YAMAMOTO Keiichirou
Принадлежит:

Provided is a high-molecular weight conjugate of resorcinol derivatives which is excellent in water solubility and stability and has high antitumor activity even when used in a smaller total drug amount than the resorcinol derivatives. The high-molecular weight conjugate of resorcinol derivatives comprises a structure in which a carboxyl group of polymer moiety having a carboxyl group in the side chain and polyethylene glycol moiety is linked to a hydroxyl group of resorcinol derivatives via an ester bond. 2. The high-molecular weight conjugate of resorcinol derivative according to claim 1 , wherein Ris an alkyl group having 1 to 6 carbon atoms which may have substituent; Ris an alkylene group having 2 to 6 carbon atoms; Ris an acyl group having 1 to 6 carbon atoms claim 1 , or an alkoxycarbonyl group having 1 to 6 carbon atoms; t is an integer from 100 to 300; d is an integer from 1 to 100 claim 1 , e and f are each an integer from 0 to 100 claim 1 , and d+e+f is an integer from 6 to 100; and Ris a group selected from the group consisting of an amino acid with a protected carboxyl group and —N(R)CONH(R).3. The high-molecular weight conjugate of resorcinol derivative according to claim 2 , wherein Ris a methyl group claim 2 , Ris a trimethylene group claim 2 , Ris an acetyl group claim 2 , and Ris an isopropylaminocarbonylisopropylamino group.5. An anticancer agent comprising the high-molecular weight conjugate of resorcinol derivative according to claim 1 , as an active ingredient. This application is a continuation of U.S. patent application Ser. No. 12/311,086 filed Mar. 18, 2009, which is a 371 of International Application No. PCT/JP2007/068841 filed Sep. 27, 2007, which claims priority of Japanese Patent Application No. 2006-271425 filed Oct. 3, 2006, the disclosures of which are incorporated herein by reference.The present invention relates to a high molecular weight conjugate of resorcinol derivatives, in which a carboxyl group in a copolymer having a ...

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Номер записи: 17
11-01-2018 дата публикации

Process for Reducing the Defects in an Ordered Film of Block Copolymer

Номер: US20180011399A1
Автор: Chevalier Xavier, Inoubli Raber, Navarro Christophe, Nicolet Celia
Принадлежит: Arkema France

The present invention relates to a process for reducing the number of defects in an ordered film comprising a block copolymer (BCP). The invention also relates to the compositions used to obtain these ordered films and to the resulting ordered films that can be used in particular as masks in the lithography field. 1. A process for reducing the number of defects of an ordered film of block copolymer , said ordered film comprising a mixture of at least one block copolymer having an order-disorder transition temperature (TODT) and at least one Tg with at least one compound not having a TODT , wherein said compound is selected from the group consisting of block-copolymers , light or heat stabilizers , photo-initiators , polymeric ionic compounds , non-polymeric ionic compounds , homopolymers , and statistical copolymers , this mixture having a TODT below the TODT of the block copolymer alone , the process comprising the steps of:mixing at least one block copolymer having a TODT and at least one compound not having a TODT, in a solvent to form a mixture;depositing the mixture on a surface; andcuring the mixture deposited on the surface at a temperature between the highest Tg of the block copolymer and the TODT of the mixture.2. The process according to claim 1 , wherein the block copolymer having a TODT is a diblock copolymer.3. The process according to claim 2 , wherein one of the blocks of the diblock copolymer comprises a styrene monomer and the other block comprises a methacrylic monomer.4. The process according to claim 3 , wherein one of the blocks of the diblock copolymer comprises styrene and the other block comprises methyl methacrylate.5. The process according to claim 1 , wherein the block copolymer not having a TODT is a diblock copolymer.6. The process according to claim 5 , wherein one of the blocks of the diblock copolymer comprises a styrene monomer and the other block comprises a methacrylic monomer.7. The process according to claim 6 , wherein one of ...

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Номер записи: 18
19-01-2017 дата публикации

LOW-FRICTION AND LOW-ADHESION MATERIALS AND COATINGS

Номер: US20170015922A1
Автор: CUMBERLAND Larken E., Gross Adam F., Nowak Andrew P.
Принадлежит:

Disclosed are materials that possess both low adhesion and the ability to absorb water. The material passively absorbs water from the atmosphere and then expels this water upon impact with debris, to create a self-cleaning layer. The lubrication reduces friction and surface adhesion of the debris (such as an insect), which may then slide off the surface. The invention provides a material comprising a continuous matrix including a polymer having a low surface energy (less than 50 mJ/m) and a plurality of inclusions, dispersed within the matrix, each comprising a hygroscopic material. The continuous matrix and the inclusions form a lubricating surface layer in the presence of humidity. The material optionally contains porous nanostructures that inject water back onto the surface after an impact, absorbing water under pressure and then releasing water when the pressure is removed. The material may be a coating or a surface, for example. 1. A low-friction , low-adhesion material comprising:{'sup': 2', '2, 'a substantially continuous matrix including a low-surface-energy polymer having a surface energy between about 5 mJ/mto about 50 mJ/m; and'}a plurality of inclusions, dispersed within said matrix, each comprising a hygroscopic material,wherein said continuous matrix and said inclusions form a lubricating surface layer in the presence of humidity.2. The material of claim 1 , wherein said material is characterized by a water absorption capacity of at least 5 wt % water based on total weight of said material.3. The material of claim 2 , wherein said material is characterized by a water absorption capacity of at least 10 wt % water based on total weight of said material.4. The material of claim 1 , wherein said surface energy of said polymer is between about 10 mJ/mto about 40 mJ/m.5. The material of claim 1 , wherein said low-surface-energy polymer is a fluoropolymer.6. The material of claim 5 , wherein said fluoropolymer is selected from the group consisting of ...

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Номер записи: 19
21-01-2016 дата публикации

Reversible Shape Memory Polymers Exhibiting Ambient Actuation Triggering

Номер: US20160017101A1
Автор: Mather Patrick T.
Принадлежит: SYRACUSE UNIVERSITY

Shape memory polymers featuring reversible actuation capability under ambient stimulus for integration with apparel. One approach is to use a multiblock polymer consisting of two (or potentially more) blocks in which the one block is the crystalline switching block with relatively low melting transitions, the other block has a higher thermal transition, and the two blocks are linked together by a linker molecule. Another approach is to use a graft copolymer having high and low melting transitions where the graft copolymer has a first polymer serving as the backbone and a second polymer being grafted to or from the backbone at certain graft locations. A further approach is to use latent crosslinking of a semicrystalline polymer with reactive groups placed on the backbone.

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Номер записи: 20
21-01-2016 дата публикации

Cnt-polymer complex capable of self-doping by external stimuli and process for preparing the same

Номер: US20160017103A1
Автор: Chong Min Koo, Hyeon Yeol Jeon, Hyun Ji Kim, Kie Yong CHO, Kyung Youl Baek, Seon-ja SONG, Seung Sang Hwang, Soon Man Hong
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Provided are a CNT-polymer complex and a process for preparing the same. The CNT-polymer complex includes carbon nanotubes (CNT) coated with a block copolymer of a conjugated polymer and a non-conjugated polymer, wherein the non-conjugated polymer comprises at least one monomer selected from the group consisting of styrene, butadiene, isoprene, methacryl, acryl, acryl amide, methacryl amide, acrylonitrile, vinyl acetate, vinyl pyridine and vinyl pyrrolidone in which at least one selected from the group consisting of a sulfone group, carboxyl group, acryl group and phosphate group is protected with a protective group, and provides at least one dopant selected from the group consisting of a sulfone group, carboxyl group, acryl group and phosphate group by external stimuli so that self-doping is allowed; and the complex is soluble to an organic solvent in a neutral state but is insoluble to any solvent after subjecting it to external stimuli.

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Номер записи: 21
28-01-2016 дата публикации

Oxazoline Polymer Compositions and Use Thereof

Номер: US20160024252A1
Автор: Pan Jing, Qin Dujie, Yin Ray, Zhang Yubei
Принадлежит: ANP Technologies, Inc.

Compositions comprising an oxazoline polymer and optional linkers to carry a variety of molecules. 1. A functionalized polyoxazoline polymer , wherein said polymer comprises the formula:{'br': None, 'sub': 'n', 'I-P-L-M-B, wherein'}I is an initiator,n≧1,P is a polyoxazoline polymer,L is a first linker comprising at least two amine groups, at least two imino (—NH—) groups or at least an amino group and an imino group, wherein said first linker is attached to said polymer by one of said at least two amine groups, at least two imino (—NH—) groups or at least an amino group and an imino group,M is a second linker andB is a bioactive material.2. The polymer of claim 1 , wherein said initiator comprises an alkyl claim 1 , an aryl claim 1 , an ester claim 1 , an amide or a sulfur-containing compound.3. The polymer of claim 1 , wherein said initiator comprises a bioactive material.4. The polymer of claim 3 , wherein said bioactive material comprises a member of a binding pair (BP) claim 3 , a biologically active molecule (BAM) claim 3 , or a pharmaceutically active agent (PAA).5. The polymer of claim 4 , wherein said PAA is a small molecule drug or a large molecule drug.6. The polymer of claim 5 , wherein said large molecule drug comprises a polypeptide or a polynucleotide.7. The polymer of claim 1 , wherein said polymer comprise a poly (unsubstituted oxazoline) or a poly(substituted oxazoline)8. The polymer of claim 7 , wherein said poly(substituted oxazoline) comprises a poly (2-methyloxazoline) claim 7 , a poly (2-ethyloxazoline) claim 7 , a poly (2-propyloxazoline) claim 7 , a poly (2-butyloxazoline) or a combination thereof.9. The polymer of claim 1 , wherein said P comprises a linear claim 1 , a star branched claim 1 , a combbranched claim 1 , a dendrimer claim 1 , a dendrigraft claim 1 , a hyperbranched claim 1 , a randomly branched polyoxazoline polymer claim 1 , or a combination thereof.10. The polymer of claim 1 , wherein said second linker M comprises a linear ...

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Номер записи: 22
29-01-2015 дата публикации

COMPOSITIONS OF RESIN-LINEAR ORGANOSILOXANE BLOCK COPOLYMERS

Номер: US20150031826A1
Автор: Horstman John Bernard, Swier Steve
Принадлежит:

A process for preparing resin-linear organosiloxane block copolymers is disclosed. The process involves an initial hydrosilylation reaction to link a linear organosiloxane block with a resin organosiloxane portion to form the resin-linear block copolymer. The resulting resin-linear organosiloxane block copolymer is further crosslinked to provide copolymer compositions that are useful as coatings for various electronics and lighting components. 2. The process of claim 1 , wherein the further processing enhances storage stability and/or optical clarity and/or optionally adding to the resin-linear organosiloxane block copolymer from step II) a stabiliser.3. The process of claim 1 , wherein the reaction in step II) comprises a hydrosilylation reaction.4. The process of claim 1 , wherein the resin-linear organosiloxane block copolymer is formed in the presence of a solvent.5. The process of claim 4 , further comprising removing the solvent before or after the further processing.6. The process of claim 1 , wherein component a) has the average formula:{'br': None, 'sub': 3', '2', '3', '2', '2/2', 'n', '3', '2, 'H(CH)SiO[(CH)SiO)]Si(CH)H'}where n may vary from 10 to 400, {'br': None, 'sub': 2', '3', '2', '1/2', 'a', '6', '5', '3/2', 'd', '4/2', 'e, '[(HC═CH)(CH)SiO][(CH)SiO][SiO]'}, 'and component b) has the average formula'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'where the subscripts a, d, and e are as defmed in .'}7. The process of claim 1 , wherein component a) has the average formula{'br': None, 'sub': 2', '3', '2', '3', '2', '2/2', 'n', '3', '2', '2, '(HC═CH)(CH)SiO[(CH)SiO)]Si(CH)(HC═CH)'}where n may vary from 10 to 400, {'br': None, 'sub': 3', '2', '1/2', 'a', '4/2', 'e, '[H(CH)SiO][SiO]'}, 'and component b) has the average formula'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'where the subscripts a and e are as defmed in .'}8. The process of claim 1 , wherein a crosslinker is added in step II) and/or in step I) claim 1 , where the crosslinker has ...

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Номер записи: 23
02-02-2017 дата публикации

HYDROPHOBIC NANOSTRUCTURED THIN FILMS

Номер: US20170029659A1
Автор: Demirel Melik C., Dressick Walter J.
Принадлежит: The Government of the United States of America, as represented by the Secretary of the Navy

Provided herein are the polymers shown below. The value n is a positive integer. Ris an organic group, and each Ris H or a chemisorbed group, with at least one Rbeing a chemisorbed group. The polymer may be a nanostructured film. Also provided herein is a method of: converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers; depositing the reactive vapor onto a substrate held at an angle relative to the vapor flux to form nanostructured poly(p-xylylene) film; reacting the film with an agent to form hydrogen atoms that are reactive with a precursor of a chemisorbed group, if the film does not contain the hydrogen atoms; and reacting the hydrogen atoms with the precursor. Also provided herein is a device having a nanostructured poly(p-xylylene) film on a pivotable substrate. The film has directional hydrophobic or oleophobic properties and directional adhesive properties. 1. A method comprising:converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers, the reactive vapor having a flux;depositing the reactive vapor under vacuum onto a substrate held fixed in a specific angle of orientation relative to the vapor flux to form nanostructured poly(p-xylylene) film;reacting the nanostructured poly(p-xylylene) film with an agent to form hydrogen atoms attached to the poly(p-xylylene) film that are reactive with a precursor of a chemisorbed group, if the deposited film does not contain the hydrogen atoms; andreacting the hydrogen atoms with the precursor of the chemisorbed group.2. The method of ;wherein the di-p-xylylene paracyclophane dimer is trifluoroacetyl-di-p-xylylene paracyclophane dimer;wherein the reducing agent is lithium aluminum hydride; and{'sub': '3', 'wherein reacting with lithium aluminum hydride produces —CHOH—CFgroups.'}3. The method of claim 2 , wherein the precursor is a fluoroalkyltrichlorosilane.4. The method of claim 3 , wherein the fluoroalkyltrichlorosilane is heptadecafluoro-1 claim 3 ,1 claim 3 ,2 claim 3 ...

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Номер записи: 24
01-02-2018 дата публикации

COMPOUND, RESIN AND PHOTORESIST COMPOSITION

Номер: US20180031969A1
Автор: ICHIKAWA Koji, SAKAMOTO Hiromu
Принадлежит: Sumitomo Chemical Company, Limited

A resin comprising a structural unit represented by formula (I0): 2. The resin according to claim 1 ,{'sup': '2', 'wherein X1 and Xeach independently represent —O—CO—O— or —O—.'}3. The resin according to claim 1 ,{'sup': '2', 'wherein each of X1 and Xrepresent —O—.'}4. The resin according to claim 1 ,{'sup': '1', 'wherein Arepresents a C2-C18 divalent aliphatic hydrocarbon group.'}5. The resin according to claim 1 ,which further comprises a structural unit having an acid-labile group.6. The resin according to claim 1 ,which further comprises a structural unit having a lactone ring.7. A photoresist composition which comprises the resin according to and an acid generator.8. The photoresist composition according to claim 7 , further comprising a resin which comprises a structural unit having a fluorine atom.9. A process for producing a photoresist pattern comprising the following steps (1) to (5):{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, '(1) a step of applying the photoresist composition according to on a substrate,'}(2) a step of forming a composition film by drying the composition,(3) a step of exposing the composition film to radiation,(4) a step of baking the exposed composition film, and(5) a step of developing the baked composition film. This nonprovisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 2016-149451 filed in JAPAN on Jul. 29, 2016, the entire contents of which are hereby incorporated by reference.This disclosure relates to a compound, a resin and a photoresist composition and a process for producing a photoresist pattern.JP2009-42748A1 mentions a resin obtained by polymerizing a compound of the following formula, and a photoresist composition comprising the resin and an acid generator.The invention of the disclosure relates to the followings:<1> A resin comprising a structural unit represented by formula (I0):wherein A, Aand Aeach independently represent a C2-C18 divalent hydrocarbon group,R, R, Rand Reach ...

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Номер записи: 25
04-02-2021 дата публикации

RESIN MODIFIER, RESIN COMPOSITION, MOLDING, AND MOLDED ARTICLE

Номер: US20210032410A1
Автор: HASEGAWA Shimpei, Tanaka Yuhei
Принадлежит: SANYO CHEMICAL INDUSTRIES, LTD.

The present invention provides a resin modifier (Y) containing: a block polymer (X) that has a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as constitutional units, the block polymer (X) having an orientation index (ω) obtained by the following formula of 1.5 to 15: 1. A resin modifier (Y) comprising:a block polymer (X) that has a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as constitutional units, {'br': None, 'orientation index (ω)=(β)/(α),'}, 'the block polymer (X) having an orientation index (ω) obtained by the following formula of 1.5 to 15{'sub': b', 'a, 'wherein (α) represents a weight ratio [(α)/(α)] between the hydrophilic polymer (b) and the hydrophobic polymer (a) in the block polymer (X), and'}{'sub': b', 'a, '(β) represents a weight ratio [(β)/(β)] between the hydrophilic polymer (b) and the hydrophobic polymer (a) determined by reflective infrared spectroscopy of the block polymer (X) heat-melted and pressed to a thickness of 500 μm.'}2. The resin modifier according to claim 1 ,wherein the block polymer (X) has one of the molecular structures (1) to (3):(1) a linear (a)-(b) diblock structure;(2) a linear (b)-(a)-(b) triblock structure; and(3) a branched structure in which two or three blocks of the hydrophilic polymer (b) are bonded to one end of the block of the hydrophobic polymer (a).3. The resin modifier according to claim 1 ,wherein the hydrophobic polymer (a) is at least one selected from the group consisting of a polyolefin (a1) having a reactive groups at each end, a polyolefin (a2) having a reactive group at one end, and a poly(meth)acrylate (a3) containing an alkyl (meth)acrylate comprising a C4-C32 alkyl group as a constituent monomer.4. The resin modifier according to claim 3 ,wherein the hydrophobic polymer (a) is a polyolefin having 30 mol % or more of a propylene-derived constitutional unit.5. The resin modifier according to claim 4 ,wherein the polyolefin (a1) has a ...

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Номер записи: 26
08-02-2018 дата публикации

COPOLYMER COMPRISING AT LEAST THREE BLOCKS: POLYAMIDE BLOCKS, PEG BLOCKS AND OTHER BLOCKS

Номер: US20180037701A1
Автор: Malet Frederic, Pineau Quentin, REYNA-VALENCIA Alejandra
Принадлежит: Arkema France

The present invention relates to elastomeric thermoplastic polymers (ETP) and especially technical polymers with high added value used in varied sectors, such as electronics, motor vehicles or sport. The present invention more particularly relates to copolymers containing polyether blocks and polyamide blocks, abbreviated as “PEBA”, which have good antistatic properties. Even more particularly, the invention relates to a copolymer containing at least one polyamide (PA) block, at least one polyethylene glycol (PEG) block and at least one block that is more hydrophobic than the PEG block. A subject of the invention is also a process for synthesizing such thermoplastic elastomers which have good antistatic properties and the use thereof in any type of thermoplastic polymer matrix in order to afford this matrix antistatic properties. 1. A copolymer comprising:from 5 to 50% by weight, relative to the total weight of the copolymer, of at least one polyamide (PA) block,from 20 to 94% by weight, relative to the total weight of the copolymer, of at least one polyethylene glycol (PEG) block,from 1 to 45% by weight, relative to the total weight of the copolymer, of at least one block that is more hydrophobic than the PEG block, said block that is more hydrophobic than the PEG block being selected from the group consisting of a polyether (PE) block other than PEG, a polyester (PES) block and a polyolefin (PO) block.2. The copolymer as claimed in claim 1 , wherein the block that is more hydrophobic than the PEG block is selected from the group consisting of:a PE block selected from the group consisting of polypropylene glycol (PPG), polytetramethylene glycol (PTMG), polyhexamethylene ether glycol, polytrimethylene ether glycol (PO3G), poly(3-alkyl tetrahydrofuran), and copolymers thereof,a PES block,a PO block selected from the group consisting of ethylene homopolymers and copolymers, propylene homopolymers and copolymers, styrene/ethylene-butene/styrene (SEBS) block copolymers, ...

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Номер записи: 27
12-02-2015 дата публикации

CROSS-LINKED POLYMERS AND MEDICAL PRODUCTS DERIVED FROM NUCLEOPHILICALLY ACTIVATED POLYOXAZOLINE

Номер: US20150045507A1
Автор: BENDER Johannes Caspar Mathias Elizabeth, HOOGENBOOM Richard, VAN GOOR Harry, Ven Hest Jan Cornelis Maria
Принадлежит: Bender Analytical Holding B.V.

One aspect of the invention relates to a biocompatible medical product comprising at least 1% by weight of dry matter of a covalently cross-linked polymer that is obtained by reacting a nucleophilically activated polyoxazoline (NU-POX) with an electrophilic cross-linking agent other than an electrophilically activated polyoxazoline, said NU-POX comprising m nucleophilic groups; and said electrophilic cross-linking agent comprising n electrophilic groups, wherein the m nucleophilic groups are capable of reaction with the n electrophilic groups to form covalent bonds; wherein m≧2, n≧2 and m+n≧5; and wherein the NU-POX comprises at least 30 oxazoline units in case the electrophilic cross-linking agent is an isocyanate. Also provided is a kit for producing the aforementioned biocompatible cross-linked polymer. The biocompatible cross-linked polymers according to the invention have excellent implant and/or sealing characteristics. 120.-. (canceled)21. A biocompatible medical product comprising at least 1% by weight of dry matter of a covalently cross-linked polymer that is obtained by reacting a nucleophilically activated polyoxazoline (NU-POX) with an electrophilic cross-linking agent other than an electrophilically activated polyoxazoline , said NU-POX comprising m nucleophilic groups; and said electrophilic cross-linking agent comprising n electrophilic groups , wherein the m nucleophilic groups are capable of reaction with the n electrophilic groups to form covalent bonds; wherein m≧2 , n≧2 and m+n≧5; and wherein the NU-POX comprises at least 30 oxazoline units in case the electrophilic cross-linking agent is an isocyanate.22. The medical product according to claim 21 , comprising at least 25% by weight of dry matter of the covalently cross-linked polymer.23. The medical product according to claim 21 , wherein the product is an adhesive tissue tape claim 21 , an adhesive tissue film claim 21 , a tissue sealant claim 21 , a haemostatic material claim 21 , a suture ...

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Номер записи: 28
16-02-2017 дата публикации

Dry Spray on Hemostatic System

Номер: US20170043051A1
Автор: LAVIK Erin
Принадлежит:

The invention provides for dry spray compositions comprising co-polymers comprising a core, water-soluble polymer and a peptide. 1. A dry spray composition comprising a co-block polymer.2. The dry spray composition of wherein the co-block polymer is coupled with a water soluble polymer.3. The dry spray composition of wherein the co-block polymer is a nanoparticle comprising a core claim 1 , a water soluble polymer and a peptide.4. The dry spray composition of comprising a nanoparticle claim 1 , wherein the nanoparticle comprises a water soluble polymer attached to the core at a first terminus of the water soluble polymer.5. The dry spray composition of claim 3 , wherein the peptide comprises an RGD amino acid sequence.6. The dry spray composition of further comprising a polycation.78-. (canceled)9. The dry spray composition of claim 1 , wherein the co-block polymer is poly(lactide-co-glycolide acid (PLGA) claim 1 , polylactic acid (PLA) claim 1 , polyglycolide (PGA) claim 1 , polycaprolactone (PCL) claim 1 , poly (ε-caprolactone) claim 1 , poly-L-lysine (PLL) or combinations thereof.10. The spray composition of wherein the water soluble polymer is selected from the group consisting of polyethylene glycol (PEG) claim 2 , branched PEG claim 2 , polysialic acid (PSA) claim 2 , carbohydrate claim 2 , polysaccharides claim 2 , pullulane claim 2 , chitosan claim 2 , hyaluronic acid claim 2 , chondroitin sulfate claim 2 , dermatan sulfate claim 2 , starch claim 2 , dextran claim 2 , carboxymethyl-dextran claim 2 , polyalkylene oxide (PAO) claim 2 , polyalkylene glycol (PAG) claim 2 , polypropylene glycol (PPG) claim 2 , polyoxazoline claim 2 , poly acryloylmorpholine claim 2 , polyvinyl alcohol (PVA) claim 2 , polycarboxylate claim 2 , polyvinylpyrrolidone claim 2 , polyphosphazene claim 2 , polyoxazoline claim 2 , polyethylene-co-maleic acid anhydride claim 2 , polystyrene-co-maleic acid anhydride claim 2 , poly(1-hydroxymethylethylene hydroxymethylformal) (PHF) claim 2 , ...

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Номер записи: 29
01-05-2014 дата публикации

METHOD FOR FORMING CONJUGATED HETEROAROMATIC HOMOPOLYMER AND COPOLYMER, AND PRODUCTS THEREOF

Номер: US20140121326A1
Автор: Arumugam Balasubramanian, Han Chien-Chung
Принадлежит:

A method for forming a conjugated heteroaromatic polymer is described, wherein at least one compound of formula (1) is polymerized using an acid as a catalyst, 2. The method of claim 1 , wherein the at least one compound of formula (1) being polymerized consists of a single compound of formula (1) with Z═H and Y≠H.3. The method of claim 1 , wherein the at least one compound of formula (1) being polymerized consists of two or more compounds of formula (1) with Z═H and Y≠H.4. The method of claim 3 , wherein the two or more compounds of formula (1) with Z═H and Y≠H contain different combination sets of X claim 3 , Rand b and are added in sequence to form two or more different polymer blocks.5. The method of claim 1 , wherein the at least one compound of formula (1) with Z═H and Y≠H is polymerized together with at least one less reactive compound of formula (1) selected from the group consisting of compounds of formula (1) with Z≠H and Y≠H and compounds of formula (1) with Z═H and Y═H.6. The method of claim 5 , wherein the at least one compound of formula (1) with Z═H and Y≠H and the at least one less reactive compound of formula (1) are polymerized at the same time.7. The method of claim 5 , wherein the at least one compound of formula (1) with Z═H and Y≠H is polymerized first to form a polymer chain claim 5 , and then the at least one less reactive compound is added to react with a terminal of the polymer chain and elongate the polymer chain.8. The method of claim 7 , wherein{'sup': '1', 'the at least one less reactive compound of formula (1) comprises two or more compounds that contain different combination sets of X, Rand b, and'}the two or more compounds are added in a sequence to form two or more different polymer blocks.9. The method of claim 5 , wherein the compound of formula (1) with Z═H and Y≠H and the at least one less reactive compound of formula (1) have different groups X.10. The method of claim 1 , wherein the acid as the catalyst is selected from the ...

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Номер записи: 30
16-02-2017 дата публикации

POLY(BETA-METHYL-DELTA-VALEROLACTONE) BLOCK POLYMERS

Номер: US20170044326A1
Автор: Bates Frank Steven, Hillmyer Marc A., Schneiderman Deborah Kay, Zhang Kechun
Принадлежит:

Block copolymers include a poly β-methyl-δ-valerolactone (PMVL) block. The PMVL blocks can be formed from biosynthesized β-methyl-δ-valero lactone (MVL). The block copolymers can include hard blocks. The block copolymers can be thermoplastic elastomers. 1. A block copolymer comprising:a poly(β-methyl-δ-valerolactone) (PMVL) block.2. A block copolymer according to claim 1 , wherein the PMVL block has a mass average molar mass (M) of 0.25 kDa or greater.3. A block copolymer according to claim 1 , further comprising a second polymer block having a glass transition temperature 10° C. or more greater than the glass transition temperature of the PMVL block.4. A block copolymer according to claim 3 , wherein the second block has a glass transition temperature of about 30° C. or greater.5. A block copolymer according to claim 3 , wherein the second block has a glass transition temperature of about 50° C. or greater.6. A block copolymer according to claim 3 , wherein the second block is a crystalline or semi-crystalline block at about 23° C.7. A block copolymer according to claim 1 , further comprising a second block formed from a polymer selected from the group consisting of polylactic acid claim 1 , polyhydroxybutyrate claim 1 , polybutylene succinate and polyurethane.8. A block copolymer according to claim 1 , further comprising a second block formed from polylactic acid or polyhydroxybutyrate.9. A block copolymer according to claim 1 , further comprising a second block formed from polylactic acid.10. A block copolymer according to claim 1 , further comprising a second block claim 1 , wherein the PMVL block and the second block each have an Mof about 0.25 kDa or greater.11. A block copolymer according to claim 1 , wherein the PMVL block has a C/C ratio greater than zero.12. A block copolymer according to claim 1 , wherein the block copolymer has a C/C ratio greater than zero.13. A block copolymer according to claim 1 , wherein the block copolymer is an ABA block copolymer ...

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Номер записи: 31
19-02-2015 дата публикации

BLOCK COPOLYMER HAVING PHENYLBORONIC ACID GROUP INTRODUCED THEREIN, AND USE THEREOF

Номер: US20150051347A1
Автор: Ishii Takehiko, Kataoka Kazunori, Kato Yasuki, MATSUMOTO Akira, NAITO Mitsuru
Принадлежит:

A block copolymer includes a polyamino acid chain segment and a hydrophilic polymer chain segment. The polyamino acid chain segment includes at least one amino acid residue having a side chain that contains a cationic group and at least one amino acid residue having a side chain that contains a substituted phenylboronic acid group. In the substituted phenylboronic acid group, at least one hydrogen of the phenyl ring is substituted so that the phenylboronic acid group has a pKa of less than 8. Such a block copolymer serves as a carrier that simultaneously imparts stability to a biotechnology-based drug in blood and provides suitable drug-releasing properties of the drug at an affected area. 19.-. (canceled)10. A pharmaceutical composition , comprising a complex of:a block copolymer having a polyamino acid chain segment and a hydrophilic polymer chain segment, anda nucleic acid,wherein the polyamino acid chain segment includes at least one amino acid residue having a side chain that contains a cationic group and at least one amino acid residue having a side chain that contains a substituted phenylboronic acid group,at least one hydrogen atom of the phenyl ring of the substituted phenylboronic acid group has been substituted so that the substituted phenylboronic acid group has a pKa of less than 8, andthe nucleic acid is reversibly covalently bound to the substituted phenylboronic acid group.11. The pharmaceutical composition according to claim 10 , wherein the substituted phenylboronic acid group of the at least one amino acid residue has a pKa of less than 7.5.13. The pharmaceutical composition according to claim 10 , wherein the cationic group of the at least one amino acid residue is an amino group.15. The pharmaceutical composition according to claim 10 , wherein the following relationship is satisfied:{'br': None, 'i': A+', '·√B≧C,, '√2'}wherein A is the number of cationic amino acid residue(s) in the polyamino acid chain segment that contain no substituted ...

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Номер записи: 32
14-02-2019 дата публикации

MULTIPHASE COATINGS WITH SEPARATED FUNCTIONAL PARTICLES, AND METHODS OF MAKING AND USING THE SAME

Номер: US20190048223A1
Автор: DUSTIN Ashley M., GRAETZ Jason A., Nowak Andrew P., Rodriguez April R., Vajo John J.
Принадлежит:

Some variations provide a multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct, wherein the first polymer material and the second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns, wherein the multiphase polymer composition comprises first solid functional particles selectively dispersed within the first polymer material, and wherein the first solid functional particles are chemically distinct from the first polymer material and the second polymer material. Some embodiments provide an anti-corrosion composition comprising first corrosion-inhibitor particles or precursors selectively dispersed within the first polymer material, wherein the multiphase polymer composition optionally further comprises second corrosion-inhibitor particles or precursors selectively dispersed within the second polymer material. These multiphase polymer compositions may be used for other applications, such as self-cleaning, self-healing, or flame-retardant coatings. Methods of making and using these multiphase polymer compositions are disclosed. 1. A multiphase polymer composition comprising a first polymer material and a second polymer material that are chemically distinct , wherein said first polymer material and said second polymer material are microphase-separated on a microphase-separation length scale from about 0.1 microns to about 500 microns , wherein said multiphase polymer composition comprises first solid functional particles selectively dispersed within said first polymer material , and wherein said first solid functional particles are chemically distinct from said first polymer material and said second polymer material.2. The multiphase polymer composition of claim 1 , wherein said first solid functional particles are capable of reacting with said second polymer material claim 1 , in response to an environmental input selected ...

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Номер записи: 33
25-02-2016 дата публикации

POLYESTER POLYOLS FROM RECYCLED POLYMERS AND WASTE STREAMS

Номер: US20160053058A1
Автор: Bae Woo-Sung, Beatty Matthew J., Brown Matthew Thomas, Christy Michael Robert, Kovsky Jack Rogers, Mukerjee Shakti L., Rogers Kevin Anthony, Spilman Gary E., Tabor Rick, Vrabel Eric David
Принадлежит:

The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols. 2. The polyester polyol according to wherein the aromatic polyacid source is a thermoplastic polyester.3. The polyester polyol according to wherein the thermoplastic polyester is selected from copolymers of(a) acids selected from terephathlic acid, 2,5-furandicarboxylic acid, isophthalic acid, dihydroferulic acid, salts thereof, C1-C6 monoesters thereof, C1-C6 diesters thereof, and combinations thereof; and(b) diols selected from ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,3-cyclohexane diol, 1,4-cyclohexane diol, 1,3-cycohexanedimethanol, 1,4-cyclohexanedimethanol, 2,2,4,4-tetramethyl-1,3-cyclobutane diol, and combinations thereof.4. The polyester polyol according to wherein the thermoplastic polyester is selected from polyethylene terephthalate (PET) claim 2 , polybutylene terephthalate claim 2 , polytrimethylene terephthalate (PTT) claim 2 , glycol-modified polyethylene terephthalate claim 2 , copolymers of terephthalic acid and 1 claim 2 ,4-cyclohexanedimethanol claim 2 , isophthalic acid-modified copolymers of terephthalic acid and 1 claim 2 ,4-cyclohexanedimethanol claim 2 , copolymers of 2 claim 2 ,5-furandicarboxylic acid or C1-C6-dialkyl 2 claim 2 ,5-furandicarboxylates claim 2 , copolymers of terephthalic acid and 2 claim 2 ,2 claim 2 ,4 claim 2 ,4- ...

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Номер записи: 34
08-05-2014 дата публикации

COPOLYMERS BASED ON POLYESTER AND AROMATIC POLYCARBONATE

Номер: US20140128540A1
Автор: Cinelli Patrizia, Lazzeri Andrea, Penco Maurizio, Phuong Thanh Vu
Принадлежит: UNIVERSITA' DI PISA

The present invention relates to new copolymers made of polylactic acid and aromatic polycarbonate, to processes for their preparation and their uses. 1. Copolymers obtainable from the copolymerization in the molten state of polylactic acid component (PLA) of length n and of aromatic polycarbonate (PC) of length m , according to the following reaction{'br': None, 'i': PLA', 'n', 'PC', 'm', 'PLA', 'x', 'PC', 'y]z, '()+()→[()−()'}wherein 100 Подробнее

Номер записи: 35
09-03-2017 дата публикации

Polyester Polyols and Methods of Making and Using the Same

Номер: US20170066921A1
Автор: Beuhler Allyson, Meltzer Donald A., Mody Kamlesh, Tindall Debra
Принадлежит: ELEVANCE RENEWABLE SCIENCES, INC.

Polyester polyols are generally disclosed, including methods of making and using them. In some embodiments, the polyester polyols are incorporated into a block copolymer, such as a polyurethane block copolymer. In some embodiments, the polyurethane block copolymers can be used as compatibilizing agents, which can be used, for example, in polymer blends, polymer alloys, solutions, emulsions, as well as in extruded and injection molded articles. In some embodiments, at least a portion of the polyurethane block copolymer is derived from a renewable source. 140-. (canceled)41. A polymer composition comprising:a first polymer; anda second polymer, wherein the second polymer is a block copolymer, wherein the block copolymer comprises: (a) a first block, which is formed from a reaction mixture comprising a short-chain diisocyanate and a first short-chain diol; and (b) a second block, which comprises a polyester polyol formed from a second short-chain diol and octadecanedioic acid or an ester thereof.42. The polymer composition of claim 41 , wherein the first polymer is a non-polar polymer.43. The polymer composition of claim 42 , wherein the first polymer is a polyolefin claim 42 , a polystyrene claim 42 , or a copolymer thereof.44. The polymer composition of claim 43 , wherein the first polymer is: a polyethylene claim 43 , such as a high-density polyethylene claim 43 , a low-density polyethylene claim 43 , a linear low-density polyethylene claim 43 , and the like; a polypropylene; a polyisobutylene; a polystyrene claim 43 , such as polystyrene claim 43 , styrene butadiene rubber claim 43 , and the like; polystyrene copolymers claim 43 , such as acrylonitrile butadiene styrene (ABS); or any mixtures thereof.45. (canceled)46. (canceled)47. The polymer composition of claim 41 , wherein the first polymer is a polar polymer.48. The polymer composition of claim 47 , wherein the first polymer is: an acrylic polymer claim 47 , a polyamide claim 47 , a polycarbamate claim 47 , a ...

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Номер записи: 36
11-03-2021 дата публикации

AQUEOUS POLYMER, DISPERSION, AND AQUEOUS PAINT

Номер: US20210070947A1
Автор: CHANG Cha-Wen, CHANG Shinn-Jen, Chen Jen-Yu, CHEN Yu-Hui, YU Ruo-Han
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

An aqueous polymer is provided, which is formed by neutralizing a copolymer modified by polyalkylene glycol with ammonia, primary amine, secondary amine, or a combination thereof, wherein the copolymer is copolymerized from an anhydride monomer with a double bond, a monomer with a double bond, and an initiator. The aqueous polymer can be mixed and dispersed with water and pigment powder to form a dispersion. The dispersion can be mixed with binder to form an aqueous paint. 1. An aqueous polymer , being:formed by neutralizing a copolymer modified by polyalkylene glycol with ammonia, primary amine, secondary amine, or a combination thereof,wherein the copolymer is copolymerized from an anhydride monomer with a double bond, a monomer with a double bond, and an initiator.2. The aqueous polymer as claimed in claim 1 , wherein the initiator comprises dibenzamidine peroxide claim 1 , 2 claim 1 ,2′-azobisisobutyronitrile claim 1 , di(t-butyl) peroxide claim 1 , t-butylhydroperoxide claim 1 , 1 claim 1 ,1′-azo(cyanocyclohexane) claim 1 , 2 claim 1 ,5-dimethyl-2 claim 1 ,5-bis(t-butyl peroxide) hexane claim 1 , t-butyl pexoyxbenzoate claim 1 , cumene hydroperoxide claim 1 , dicumyl peroxide claim 1 , lauryl peroxide claim 1 , or t-butyl peroxyacetate.4. The aqueous polymer as claimed in claim 3 , wherein 0.1≤z/(y+z)≤0.5.5. The aqueous polymer as claimed in claim 1 , having an acid value of 40 mgKOH/g to 250 mgKOH/g.6. A dispersion claim 1 , comprising:an aqueous polymer;water; andpigment powder,wherein the aqueous polymer is formed by neutralizing a copolymer modified by polyalkylene glycol with ammonia, primary amine, secondary amine, or a combination thereof,wherein the copolymer is copolymerized from an anhydride monomer with a double bond, a monomer with a double bond, and an initiator.8. The dispersion as claimed in claim 6 , wherein the pigment powder has an average diameter of 280 nm to 400 nm.9. An aqueous paint claim 6 , comprising:a dispersion and a binder, an ...

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Номер записи: 37
18-03-2021 дата публикации

POLYMERIC DEVICES AND METHODS OF MAKING

Номер: US20210079178A1
Автор: Bazor Ben, Cohen Edward Aaron, Pan Tingrui, Yang Gaomai
Принадлежит:

Some polymeric devices, as described herein, can be made of a first layer and a second layer bonded together with one or more microfluidic channels defined internal to the device. The first layer and the second layer may each include a substrate and a polymer bonded to the substrate. The two layers may be bonded through a polymer network that interpenetrates the polymers in the first and second layers. This disclosure also describes methods of bonding together polymeric articles. The methods include diffusing polymerizable monomers and radical forming initiators into the surfaces of one or both of the polymers, putting the surfaces into contact, and initiating polymerization to create a polymer network that interpenetrates the polymers. 1. A method of making a polymeric device , the method comprising: a first article having a first surface; and', 'a second article having a second surface;, '(a) providing(b) contacting the first surface with a radical forming initiator;(c) contacting the first surface with polymerizable monomers to create a polymer layer;(d) attaching the second surface of the second article to the polymer layer; and(e) initiating polymerization of the polymer layer such that the first article is bonded to the second article.2. The method of claim 1 , wherein the polymer layer comprises a hydrogel.3. The method of claim 1 , wherein the polymer layer has anti-biofouling properties.4. The method of claim 1 , wherein the polymer layer comprises poly-PEG acrylate claim 1 , polyacrylamide claim 1 , poly(glycerol) claim 1 , poly(2-oxazoline) claim 1 , poly(hydroxyfunctional acrylate) claim 1 , poly(vinylpyrrolidone) claim 1 , peptides claim 1 , or peptoids.5. The method of claim 1 , wherein the polymer layer comprises one or more microfeatures.6. The method of claim 5 , wherein at least one microfeature is a microchannel.7. The method of claim 1 , wherein the polymerizable monomers comprise a polymerizable polyethylene glycol (“PEG”).8. The method of claim ...

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Номер записи: 38
02-04-2015 дата публикации

METHODS OF FORMING NANOSTRUCTURES INCLUDING METAL OXIDES AND SEMICONDUCTOR STRUCTURES INCLUDING SAME

Номер: US20150091137A1
Автор: Brown William R., Chen Xue, Eom Ho Seop, Hendricks Nicholas, Jain Kaveri, Olson Adam L., Schuldenfrei Scott
Принадлежит: MICRON TECHNOLOGY, INC.

A method of forming nanostructures may include forming a block copolymer composition within a trench in a material on a substrate, wherein the block copolymer composition may comprise a block copolymer material and an activatable catalyst having a higher affinity for a first block of the block copolymer material compared to a second block of the block copolymer material; self-assembling the block copolymer composition into first domains comprising the first block and the activatable catalyst, and second domains comprising the second block; generating catalyst from the activatable catalyst in at least one portion of the first domains to produce a structure comprising catalyst-containing domains and the second domains, the catalyst-containing domains comprising the first block and the catalyst; and reacting a metal oxide precursor with the catalyst in the catalyst-containing domains to produce a metal oxide-containing structure comprising the first block and metal oxide. 1. A method of forming nanostructures , comprising:forming a block copolymer composition within a trench in a material on a substrate, the block copolymer composition comprising a block copolymer material and an activatable catalyst having a higher affinity for a first block of the block copolymer material compared to a second block of the block copolymer material;self-assembling the block copolymer composition into first domains comprising the first block and the activatable catalyst, and second domains comprising the second block;generating catalyst from the activatable catalyst in at least one portion of the first domains to produce a structure comprising catalyst-containing domains and the second domains, the catalyst-containing domains comprising the first block and the catalyst; andreacting a metal oxide precursor with the catalyst in the catalyst-containing domains to produce a metal oxide-containing structure comprising the first block and metal oxide.2. The method of claim 1 , wherein forming ...

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Номер записи: 39
31-03-2016 дата публикации

MRI CONTRASTING AGENT FOR CONTRASTING CANCER CELL

Номер: US20160089455A1
Автор: Hyeon Taeghwan, Ling Daishun, Na Kun, Park Wooram
Принадлежит:

The present invention relates to MRI contrasting agent for contrasting cancer cell which contains ultrafine nanoparticles. More particularly, the present invention is directed to a self-assembled ligand composition comprising a ligand A, which is separated at a specific pH range, and a ligand B of which surface charge changes at a specific pH range, MRI contrast agent for contrasting cancer cell comprising said ligand composition and MRI contrasting nanoparticles, and the methods for preparing them. 1. A ligand composition comprising a ligand A which is separated at a specific pH range , and a ligand B of which surface charge changes at a specific pH range.4. The ligand composition of claim 1 , wherein said specific pH range is 4-7.2.5. An MRI contrasting agent composition for contrasting a cancer cell comprising a ligand A which is separated at a specific pH range claim 1 , a ligand B of which surface charge changes at a specific pH range claim 1 , and a nanoparticle for MRI contrasting which is captured by an imidazole group of said ligand A.8. The MRI contrasting agent composition of claim 5 , wherein said MRI contrasting nanoparticle is an iron oxide nanoparticle.9. The MRI contrasting agent composition of claim 8 , wherein the size of said iron oxide nanoparticle is 1 nm to 100 nm.10. The MRI contrasting agent composition of claim 5 , wherein said specific range of pH is 4-7.2.11. A process for preparing a ligand composition claim 5 , comprising:(i) preparing said ligand composition by adding to an organic solvent a mixture solution which contains a ligand A, which is separated at a specific pH range, and a ligand B of which surface charge changes at a specific pH range; and(ii) separating said ligand composition.12. The process of claim 11 , the solvent of said mixture solution is selected from the group consisting of DMSO claim 11 , DMF and THF.13. The process of claim 11 , wherein said organic solvent is selected from the group consisting of chloroform claim ...

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Номер записи: 40
21-03-2019 дата публикации

POLYMERIC POLYMERIC MATERIALS CONTAINING POLYHEDRAL OLIGOMERIC SILSESQUIOXANE(POSS)

Номер: US20190085118A1
Автор: BAK In Gyu, CHAE Chang Geun, KIM Myung Jin, KISHORE Mallela Yadagiri Lakshmi Narasimha, LEE Jae Suk, SEO Ho Bin, YU Yong Guen
Принадлежит:

A macromolecular photonic crystal material including an A block and a B block is disclosed. 1wherein the A block comprises a crystalline polyhedral oligomeric FOSS, the macromolecular photonic crystal material represented by the structural formula 1.. A macromolecular photonic crystal material including an A block and a B block, This application claims the priority of U.S. Provisional Patent Application No. 62/558,880 filed on Sep. 17, 2017; Korean Patent Application No. 10-2018-0111136 filed on Sep. 17, 2018 in the Korean Intellectual Property Office, the disclosure of which is hereby incorporated by reference in its entirety.Discloses a macromolecular polymer photonic crystal material containing polyhedral oligomeric silsesquioxane (POSS).Block copolymers are widely used as organic polymer photonic crystal materials. Brush block copolymers through polymerization of double norbornene macromonomers have commercial disadvantages as they require precise polymerization techniques.Cube-like polyhedral oligomeric silsesquioxane (POSS) is a promising candidate of isotropically bulky pendants to expand the dimensional limit of polymer main chains. This paper presents molecular and kinetic insights into the controlled synthesis of rod-like POSS-containing polynorbornenes. Ring-opening metathesis polymerization (ROMP) was performed on three norbornene-substituted POSS monomers with different spacers. For monomers possessing non- and amide functionalities at the spacers, ROMP at the maximum concentration ([M]=0.4 M) led to 100% conversion, predictable molecular weights (M≤1236 kDa) and low dispersities (Ð≤1.20) in homopolymers. Scaling analysis for POSS-containing polynorbornenes revealed an unusual finding, namely, that the periodic clustering of POSS pendants favored by long flexible spacers (16-atom chains) enhanced the rigidity of polynorbornene main chains, leading to their rod-like conformation. Kinetically optimized ROMP allowed the subsequent addition of a ...

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Номер записи: 41
02-04-2015 дата публикации

MODIFIED DIENE BASED POLYMER

Номер: US20150094425A1
Автор: Okamatsu Takahiro, Takahashi Ryota, UENISHI Kazuya
Принадлежит:

Provided is a modified diene based polymer in which a diene based polymer is graft modified with a polyether having a mercapto group attached via diurethane bonding. Formation of diurethane bonding is performed by allowing sequential reactions of two species of hydroxyl group-containing compounds with an diisocyanate compound. By adding the modified diene based polymer to a silica-containing rubber composition for automobile pneumatic tires, the dispersibility of silica compounded in the rubber composition can be improved, and a property inherent in silica which simultaneously allows a reduction of rolling resistance and a stability on wet road surfaces can be sufficiently effected. 1. A modified diene based polymer , wherein a diene based polymer is graft modified with a polyether having a mercapto group attached via diurethane bonding.2. The modified diene based polymer according to claim 1 , wherein the polyether having a mercapto group attached via diurethane bonding is a polyalkylene oxide having an inert substituent at one end and a mercapto group attached via diurethane bonding at the other end.3. The modified diene based polymer according to claim 2 , wherein the inert substituent at one end of the polyalkylene oxide is an alkyl group having 1 to 10 carbon atoms claim 2 , an aryl group claim 2 , or an aralkyl group.4. The modified diene based polymer according to claim 2 , wherein the polyalkylene oxide having an inert substituent at one end and a mercapto group attached via diurethane bonding at the other end is produced via a series of steps:(1) one monoisocyanate group of a diisocyanate compound is allowed to react with the polyalkylene oxide having an inert substituent at one end to generate a urethane bond;(2) then, the other isocyanate group of the diisocyanate compound is allowed to react with dihydroxyalkyl disulfide or corresponding tetrasulfide to generate a urethane bond; and(3) a sulfide bond of the resulting disulfide group or tetrasulfide group ...

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Номер записи: 42
05-05-2022 дата публикации

BRANCHED HARD- AND SOFT-BLOCK COPOLYMERS

Номер: US20220135746A1
Автор: Cocquet Clio, Pineau Quentin
Принадлежит: Arkema France

The invention relates to a branched copolymer containing rigid blocks and flexible blocks, wherein the branchings are made by a polyol residue binding rigid blocks of the copolymer,

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Номер записи: 43
06-04-2017 дата публикации

Sorting Two-Dimensional Nanomaterials by Thickness

Номер: US20170096344A1
Автор: Green Alexander A., Hersam Mark C.
Принадлежит:

The Present teachings provide, in part, methods of separating two-dimensional nanomaterials by atomic layer thickness. In certain embodiments, the present teachings provide methods of generating graphene nanomaterials having a controlled number of atomic layer(s). 1. A method of preparing an aqueous graphene dispersion , said method comprising:providing a composition comprising a graphite composition comprising natural graphene, at least one non-ionic surface active polymeric component and an aqueous medium;sonicating said composition to exfoliate said graphite composition and disperse said graphene component within said aqueous medium; andcentrifuging said sonicated composition to separate said dispersed graphene component therefrom.2. The method of wherein said polymeric component comprises a block copolymer of oxyethylene and oxypropylene.3. The method of wherein said centrifugation separates at least one fraction of said dispersed graphene component claim 1 , said fraction enriched with graphene of a specific thickness dimension.4. The method of comprising isolation of said separation fraction and repeating said centrifugation.5. A method of using a surface active block copolymeric component to affect dispersion of graphene in an aqueous medium claim 3 , said method comprising:providing a composition comprising a graphite composition comprising a graphene component, at least one surface active non-ionic block copolymer of oxyethylene and oxypropylene and an aqueous medium;sonicating said composition to exfoliate said graphite composition and disperse said graphene component within said aqueous medium; andcentrifuging said sonicated composition to separate said dispersed graphene component therefrom.6. The method of wherein said centrifugation separates at least one fraction of said dispersed graphene component claim 5 , said fraction enriched with graphene of a specific thickness dimension.7. The method of comprising isolation of said separation fraction and ...

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Номер записи: 44
21-04-2016 дата публикации

METHOD AND CATALYST SYSTEM FOR PREPARING POLYMERS AND BLOCK COPOLYMERS

Номер: US20160108181A1
Автор: Kember Michael, Romain Charles, Williams Charlotte Katherine
Принадлежит: IMPERIAL INNOVATIONS LIMITED

The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a “one-pot” method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerising anhydrides and epoxides. 2. The method according to claim 1 , wherein the first monomer or combination of monomers is Group (i) claim 1 , and Z—R is -E-R claim 1 , the second monomer or combination of monomers is Group (ii) or Group (iii) and the second monomer or combination of monomers is added to the reaction after step a) has been performed.3. The method according to claim 1 , wherein the first monomer or combination of monomers is Group (ii) or Group (iii) claim 1 , the second monomer or combination of monomers is Group (i) claim 1 , and step b) is performed after step a) and before step c).4. The method according to claim 3 , wherein the second monomer or combination of monomers is added to the reaction with the first monomer or combination of monomers claim 3 , or after step a) has been performed.7. The method according to claim 1 , wherein the compound [Y] is a compound having a three claim 1 , four or five membered saturated ring and at least one heteroatom selected from O claim 1 , S or N claim 1 , preferably wherein the compound [Y] is an epoxide claim 1 , an aziridine claim 1 , an episulfide claim 1 , an oxetane claim 1 , a thietane claim 1 , an azetidine claim 1 , a saturated furan claim 1 , a saturated thiophene claim 1 , a pyrrolidine or a saturated four-membered carbon ring where two adjacent carbon atoms are replaced by —Y—C(Y)— claim 1 , wherein each Y is independently selected from O claim 1 , S or NR claim 1 , and wherein Ris H claim 1 , or optionally substituted aliphatic claim 1 , heteroaliphatic claim 1 , alicyclic claim 1 , heteroalicyclic claim 1 , aryl claim 1 , heteroaryl claim 1 , alkylaryl or alkylheteroaryl; more preferably wherein the compound [Y] is an epoxide. ...

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Номер записи: 45
23-04-2015 дата публикации

Polyester Polyols and Methods of Making and Using the Same

Номер: US20150112029A1
Автор: Beuhler Allyson, Mody Kamlesh, Tindall Debra
Принадлежит: ELEVANCE RENEWABLE SCIENCES, INC.

Polyester polyols are generally disclosed, including methods of making and using them. In some embodiments, the polyester polyols are incorporated into a block copolymer, such as a polyurethane block copolymer. In some embodiments, the polyurethane block copolymers can be used as compatibilizing agents, which can be used, for example, in polymer blends, polymer alloys, solutions, emulsions, as well as in extruded and injection molded articles. In some embodiments, at least a portion of the polyurethane block copolymer is derived from a renewable source. 195-. (canceled)97. The polyester polyol of claim 96 , wherein Xis Calkylene claim 96 , Calkenylene claim 96 , or Coxyalkylene claim 96 , each of which is optionally substituted one or more times by substituents selected from the group consisting of a halogen atom claim 96 , —OH claim 96 , —O(Calkyl) claim 96 , —NH claim 96 , —NH(Calkyl) claim 96 , and —N(Calkyl).98. The polyester polyol of claim 96 , wherein Xis Calkylene claim 96 , Calkenylene claim 96 , or Coxyalkylene claim 96 , each of which is optionally substituted one or more times by —OH.99. The polyester polyol of claim 98 , wherein Xis —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , —(CH)— claim 98 , or —(CH)—.100. The polyester polyol of claim 99 , wherein Xis —(CH)— claim 99 , —(CH)— claim 99 , or —(CH)—.101. The polyester polyol of claim 100 , wherein Xis —(CH)—.103. The polyester polyol of claim 102 , wherein Xis Calkylene claim 102 , Calkenylene claim 102 , Cheteroalkylene claim 102 , or Cheteroalkenylene claim 102 , each of which is optionally substituted one or more times by substituents selected independently from the group consisting of: a halogen atom claim 102 , —OH claim 102 , —NH claim 102 , Calkyl claim 102 , Cheteroalkyl claim 102 , Calkenyl claim 102 , ...

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Номер записи: 46
20-04-2017 дата публикации

CYCLODEXTRINS WITH ONE OR MORE POLY(ETHYLENE GLYCOL) UNITS, INCLUSION COMPOUNDS AND DRUG DELIVERY VEHICLES INCLUDING THE SAME, AND METHODS OF MAKING AND USING THE SAME

Номер: US20170106100A1
Автор: BA Yong, NGUYEN Kim Trang Huu
Принадлежит:

A compound comprising a cyclodextrin and a monoalkoxy polyethylene glycol linked thereto through an ether bond (a “pegylated cyclodextrin”) is disclosed, as are drug delivery vehicles and pharmaceutical formulations including the same, and methods for making the compound and the drug delivery vehicle and for delivering the drug to a patient in need thereof. The method of making includes the steps of creating either a tosylated monoalkoxy polyethylene glycol or a tosylated cyclodextrin, and either reacting the tosylated monoalkoxy polyethylene glycol with a deprotonated cyclodextrin, or reacting the tosylated cyclodextrin with a deprotonated monoalkoxy polyethylene glycol. The present pegylated cyclodextrin readily forms an inclusion compound with certain drugs to protect the drug against adverse interactions with mucin (e.g., in a mucus membrane). 1. A compound comprising a cyclodextrin and a monoalkoxy polyethylene glycol linked thereto through an ether bond.2. The compound of claim 1 , wherein the cyclodextrin is beta-cyclodextrin.3. The compound of claim 1 , wherein the monoalkoxy polyethylene glycol is a mono-C-C-alkoxy polyethylene glycol.4. The compound of claim 3 , wherein the mono-C-C-alkoxy polyethylene glycol is monomethoxy polyethylene glycol.5. The compound of claim 1 , wherein the monoalkoxy polyethylene glycol has a molecular weight of from 200 to 5000 g/mol.6. The compound of claim 1 , wherein the monomethoxy polyethylene glycol has a molecular weight of from 300 to 2000 g/mol.7. A drug delivery vehicle comprising the compound of .8. A method of synthesizing a pegylated cyclodextrin claim 1 , comprising:a) creating either a tosylated monoalkoxy polyethylene glycol or a tosylated cyclodextrin; and either:b-1) reacting the tosylated monoalkoxy polyethylene glycol with a deprotonated cyclodextrin; orb-2) reacting the tosylated cyclodextrin with a deprotonated monoalkoxy polyethylene glycol.9. The method of claim 8 , wherein the cyclodextrin is beta- ...

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Номер записи: 47
26-04-2018 дата публикации

POLYCARBONATE BASED PI-PI STABILIZED NANO-OBJECTS AND HYDROGELS

Номер: US20180112041A1
Автор: Boday Dylan J., Fevre Mareva B., GARCIA Jeannette M., Hedrick James L., Park Nathaniel H., Wojtecki Rudy J., ZHANG Mu San
Принадлежит:

A block copolymer includes a water-soluble block that is bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents. 1. A block copolymer comprising a water-soluble block bonded to one or more hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.2. The block copolymer of claim 1 , wherein the water-soluble block is bonded to two hydrophobic polycarbonate blocks that include pendant fluoroaryl substituents.3. The block copolymer of claim 1 , wherein the water-soluble block is poly(ethylene oxide).4. The block copolymer of claim 1 , wherein the one or more hydrophobic polycarbonate blocks include a polycarbonate material derived from a 6-membered cyclic ring.5. The block copolymer of claim 1 , wherein the one or more hydrophobic polycarbonate blocks include a polycarbonate material derived from an 8-membered cyclic ring.6. The block copolymer of claim 1 , wherein the water-soluble block is bonded to two or more hydrophobic polycarbonate blocks bearing fluoroaryl substituents and aryl substituents.7. The block copolymer of claim 6 , wherein the water-soluble block is poly(ethylene oxide).8. The block copolymer of claim 6 , wherein the two or more hydrophobic polycarbonate blocks include a polycarbonate material derived from a 6-membered cyclic ring.9. The block copolymer of claim 6 , wherein the two or more hydrophobic polycarbonate blocks include a polycarbonate material derived from an 8-membered cyclic ring.10. The block copolymer of claim 1 , wherein the block copolymer includes an amphiphilic diblock copolymer or an amphiphilic triblock copolymer.11. A mixture of block copolymers claim 1 , the mixture comprising a water-soluble block bonded to one or more hydrophobic polycarbonate blocks claim 1 , the one or more hydrophobic polycarbonate blocks including pendant fluoroaryl substituents claim 1 , pendant aryl substituents claim 1 , or a combination thereof.12. The mixture of block copolymers of ...

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Номер записи: 48
09-06-2022 дата публикации

Thermoplastic Elastomer Composition, Joint Member, and Method for Producing the Same

Номер: US20220177654A1
Автор: Mizuno Tadashi
Принадлежит: MCPP INNOVATION LLC

A joint member having a thermoplastic elastomer composition including components (A), (B), and (C). Component (A): a hydrogenated product of a block copolymer including at least two polymer blocks composed primarily of a vinyl aromatic compound and at least one polymer block including butadiene, wherein, in the hydrogenated product of the block copolymer, a proportion of a hydrogenated product (A1) of a block copolymer having a weight-average molecular weight of 300,000 or more is 30% to 100% by mass, Component (B): a hydrocarbon rubber softener, Component (C): a polypropylene resin, Component (D): a crosslinking agent. 1. A joint member comprising a thermoplastic elastomer composition including components (A) , (B) , and (C) below , wherein an amount of the component (B) is 100 to 140 parts by mass and an amount of the component (C) is 60 to 140 parts by mass relative to 100 parts by mass of the component (A) ,wherein the thermoplastic elastomer composition is formed by performing crosslinking with a component (D), andwherein a compression set of the thermoplastic elastomer composition, the compression set being measured under conditions of 70° C., 22 hours, and 25% compression in accordance with JIS K 6262, is 60% or less,Component (A): a hydrogenated product of a block copolymer including at least two polymer blocks composed primarily of a vinyl aromatic compound and at least one polymer block including butadiene, wherein, in the hydrogenated product of the block copolymer, a proportion of a hydrogenated product (A1) of a block copolymer having a weight-average molecular weight of 300,000 or more is 30% to 100% by mass,Component (B): a hydrocarbon rubber softener,Component (C): a polypropylene resin,Component (D): a crosslinking agent.2. The joint member according to claim 1 , wherein the component (C) includes a propylene random copolymer having a melting peak temperature of 100° C. or more and less than 157° C.3. The joint member according to claim 1 , wherein ...

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Номер записи: 49
18-04-2019 дата публикации

A method for preparation of hybrid amphiphilic star copolymer nano micelles

Номер: US20190110987A1
Автор: DONG Xinyi, Liu He, LIU Ren, NI Caihua, Zhang Liping
Принадлежит:

Hybrid amphiphilic star copolymer nano micelles are prepared in the invention. Cage shaped octa(γ-aminopropyl) silsesquioxanes is selected as the inorganic part, and L-glutamic benzyl ester-five membered ring anhydride is ring-opening polymerized by the initiation of amino groups on the surface of cage shaped octa(γ-aminopropyl) silsesquioxanes, producing copolymers with cage shaped octa(γ-aminopropyl) silsesquioxanes as nucleus and poly (L-glutamic-benzyl ester) as arms. The copolymers reacts with monomethoxy poly (ethylene glycol) carboxylic acid by condensation. Finally, the benzyl groups in the side chains of poly (L-glutamic acid-benzyl ester) are converted into hydrazine groups by acylhydrazination to obtain hybrid amphiphilic star copolymer nano micelles. The micelles can load doxorubicin, they are safe to human body and have good application prospects. 1. A method of preparing hybrid amphiphilic star copolymer micelles , the method comprising steps of:{'sub': 2', '2, '(1) preparation of monomers: L-glutamic benzyl ester is added to a three-necked flask with tetrahydrofuran, and the L-glutamic benzyl ester is gradually dissolved when heated to 45° C. in a water bath, triphosgene is added to the solution, the reaction is carried out for 5 hours under the protection of N, and the reacting solution becomes transparent; the remaining HCl gas and phosgene produced in the reaction is driven out by continuous entry of N, the reaction solution is slowly added to the excess anhydrous petroleum ether, the white needle like crystal is obtained in an ice bath, the product is purified by tetrahydrofuran/anhydrous petroleum ether and is separated through filtration; finally, the product L-glutamic benzyl ester-five membered ring anhydride is obtained after vacuum drying at 35° C., the product is marked as NCA;'}{'sub': '2', '(2) ring-opening polymerization of NCA: cage shaped octa(γ-aminopropyl) silsesquioxanes is added into a three-necked flask containing anhydrous ...

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Номер записи: 50
05-05-2016 дата публикации

HYDROPHILIC ORGANOSILANES

Номер: US20160122478A1
Автор: Ferrito Michael, Hrebicik Michal, Miller Scott, PETROFF Lenin James, Shen Guodong Robin, Witucki Gerald, Yoshizawa Takeshi
Принадлежит:

The present disclosure relates to compositions comprising: an organosilane having the formula: (R )(3-n) (RO)SiRO(CHCHO)(CHO)Rwherein: n is 1 or 2; a≧1, b may vary from 0 to 30, with the proviso a?b; Ris a hydrocarbon group containing 1 to 12 carbon atoms; Ris hydrogen or an alkyl group containing 1 to 6 carbon atoms; Ris a divalent hydrocarbon group containing 2 to 12 carbon atoms; and Ris hydrogen, R, or an acetyl group; and at least one of a thermoplastic resin, a thermoset resin, and an elastomer. The present organosilane compositions may be useful for treating various surfaces to render them, among other things, more hydrophilic. 2. The composition of where n is 2.3. The composition of where a ranges from 4 to 30.4. The composition of where Ris methyl and Ris methyl or ethyl.5. The composition of where Ris propylene or —CHCHC(CH)—.6. The composition of where the organosilane has the average formula{'br': None, 'sub': 3', '3', '2', '2', '2', '2', '2', '2', '2', '7', '3, '(CH)(CHCHO)Si CHCHCHO(CHCHO)CH, or'}{'br': None, 'sub': 3', '3', '2', '2', '2', '3', '2', '2', '4', '18', '3', '6', '18, '(CH)(CHO)Si CHCHC(CH)O(CHO)(CHO)H.'}7. The composition of further comprising at least one of a mineral filler and a pigment.8. A surface comprising the composition of .9. The surface of claim 8 , wherein the surface has at least one of anti-fogging properties claim 8 , water sheeting properties claim 8 , higher gloss claim 8 , and higher surface smoothness.10. The surface of claim 8 , wherein the surface is more hydrophilic than a surface lacking the organosilane.11. The surface of claim 8 , wherein the surface comprises a film.12. The surface of claim 11 , wherein the film is an agricultural film or automotive window film.14. A method for incorporating an organosilane having the formula:{'br': None, 'sup': 1', '2', '3', '4, 'sub': (3-n)', 'n', '2', '2', 'a', '3', '6', 'b, '(R)(RO)SiRO(CHCHO)(CHO)R'} n is 1 or 2;', 'a≧1, b may vary from 0 to 30, with the proviso a≧b;', {'sup ...

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Номер записи: 51
07-05-2015 дата публикации

POLYMERIZABLE COMPOSITION AND DENTAL MATERIAL

Номер: US20150126641A1
Автор: SUZUKI Kenji
Принадлежит: KURARAY NORITAKE DENTAL INC.

The present invention provides a polymerizable composition that is suitably used as a temporary cement for implant use and a mobile tooth-fixing material. The present invention is a polymerizable composition that includes an acrylic block copolymer (a) having at least one polymer block A that mainly contains a (meth)acrylic acid ester unit and that functions as a hard segment and at least one polymer block B that mainly contains an acrylic acid ester unit and that functions as a soft segment, a polymerizable monomer (b), and a polymerization initiator (c). 1. A polymerizable composition comprising:an acrylic block copolymer (a) having at least one polymer block A that mainly contains a (meth)acrylic acid ester unit and that functions as a hard segment, and at least one polymer block B that mainly contains an acrylic acid ester unit and that functions as a soft segment;a polymerizable monomer (b), anda polymerization initiator (c),wherein the acrylic block copolymer (a) has a molecular weight distribution Mw/Mn of 1.0 to 1.5, the acrylic block copolymer (a) is inactive against a polymerizable group of the polymerizable monomer (b), and polymerization initiator (c) comprises a chemical polymerization initiator (c-2).2. The polymerizable composition according to claim 1 , wherein the acrylic block copolymer (a) has a molecular weight distribution Mw/Mn of 1.0 to 1.3.3. (canceled)4. The polymerizable composition according to claim 1 , wherein the polymerizable monomer (b) is a (meth)acrylate polymerizable monomer.5. The polymerizable composition according to claim 1 , further comprising:a polymerization accelerator (d).6. The polymerizable composition according to claim 1 , further comprising:a filler (e).7. The polymerizable composition according to claim 1 , being used for application to biological tissues.8. A dental cement comprising the polymerizable composition according to .9. The dental cement according to claim 8 , wherein the dental cement is a temporary ...

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Номер записи: 52
12-05-2016 дата публикации

POLYETHERCARBONATE-POLYOXYMETHYLENE BLOCK COPOLYMERS

Номер: US20160130407A1
Автор: BARATH Gabor, Guertler Christoph, KRAUTSCHICK Mario, Leitner Walter, Mueller Thomas Ernst, Vogt Henning
Принадлежит:

The present invention relates to a method for producing polyethercarbonate-polyoxymethylene block copolymers, comprising the step of polymerizing formaldehyde, wherein formaldehyde is polymerized in the presence of a polyethercarbonate having at least one Zerewitinoff-active H atom, obtaining an intermediate product. The obtained intermediate product can be further reacted with a cyclic carboxylic acid ester or carbonic acid ester, a cyclic anhydride, an epoxide, and/or an isocyanate, wherein a hydroxyl- or carboxy-functional or NCO-modified polyethercarbonate-polyoxymethylene block copolymer is obtained. The present invention further relates to polyethercarbonate-polyoxymethylene block copolymers that can be obtained by means of such a method and to the use of same to produce polyurethane polymers. 1. A process for preparing polyethercarbonate-polyoxymethylene block copolymers , comprising polymerizing formaldehyde , in the presence of a polyethercarbonate having at least one Zerewitinoff-active hydrogen atom.2. The process of claim 1 , wherein the formaldehyde is polymerized also in the presence of a catalyst.3. The process of claim 1 , whereinthe polymerization is additionally effected in the presence of a comonomer.4. The process of claim 1 , wherein the formaldehyde is introduced into the reaction vessel as gaseous formaldehyde.5. The process of claim 1 , wherein the polyethercarbonate used to prepare the polyethercarbonate-polyoxymethylene block copolymers is prepared prior to the polymerization of the formaldehyde in the same reaction vessel and is reacted without purification steps.6. The process of claim 1 , wherein the polyethercarbonate used to prepare the polyethercarbonate-polyoxymethylene block copolymers is prepared from the starting materials comprising an epoxide and carbon dioxide.7. The process of claim 1 , further comprising reacting wherein the product mixture obtained in the preparation of the polyethercarbonate-polyoxymethylene block ...

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Номер записи: 53
11-05-2017 дата публикации

HYDROGELS FROM DYNAMIC COVALENT NETWORKS

Номер: US20170128590A1
Автор: Boday Dylan J., Fevre Mareva B., GARCIA Jeannette M., Hedrick James L., Wojtecki Rudy J.
Принадлежит:

A polymer is described herein that includes a plurality of N-J-N or N—C—S repeating units, wherein each J is independently a carbon atom, an alkyl group, or an aryl group; a plurality of hydrophilic groups bonded with the repeating units; and a plurality of hydrophobic groups bonded with the hydrophilic groups and the repeating units. Such polymers may be made into hydrogels by exposure to water, and the hydrogels may be used as delivery vehicles for various payloads. 24-. (canceled)5. The polymer of claim 1 , wherein each instance of X is independently selected from the group consisting of a cholesterol claim 1 , a polycarbonate claim 1 , a polyoxazoline claim 1 , a vitamin A claim 1 , and a vitamin E.67-. (canceled)8. A hydrogel formed by exposing the polymer of to water.9. A theranostic delivery matrix comprising the hydrogel of .1027-. (canceled)29. The polymer of claim 28 , wherein each instance of Rincludes an acryloyl group claim 28 , a lactone group claim 28 , or a caprolactone group.30. A hydrogel formed by exposing the polymer of to water.31. A theranostic delivery matrix comprising the hydrogel of . The present invention relates to methods of making hydrogel polymers and uses thereof.Hydrogels are a class of materials formed from natural or synthetic polymers that exhibit three-dimensional (3D) networks with high to ultra-high degree of water content. While the term has been used as early as 1894, the first biological use of such gels was only reported by Wichterle and Lim in 1960. Since then, there has been an explosion of investigations documenting the use of hydrogels in many biomedical applications, including medicine and protein delivery, tissue engineering, cell culture, coatings and wound dressing. The methodologies involving the production of such materials have also seen substantial increase in recent years especially with regards to the type of physical and chemical cross-linking processes.Hydrogels produced from the self-assembly of synthetic ...

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Номер записи: 54
07-08-2014 дата публикации

TRIBLOCK COPOLYMER, METHOD FOR ITS FORMATION, AND COMPATIBILIZED COMPOSITIONS COMPRISING IT

Номер: US20140221552A1
Автор: Peters Edward Norman
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

A poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) (PPE-PHE-PPE) triblock copolymer is formed by reaction of a monohydroxy-terminated poly(phenylene ether) with a diepoxy-terminated poly(hydroxy ether) in the presence of a base. The PPE-PHE-PPE triblock copolymer is useful as a compatibilizer in blends of polar polymers and non-polar polymers. The PPE-PHE-PPE triblock copolymer is also useful as a compatibilizer for non-polar polymers and polar fillers. 2. The poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) triblock copolymer of claim 1 , exhibiting a first glass transition temperature of 95 to 115° C. and a second glass transition temperature of 170 to 220° C.4. The poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) triblock copolymer of claim 1 , wherein each poly(phenylene ether) block independently has a number average molecular weight of 1 claim 1 ,000 to 5 claim 1 ,000 atomic mass units.5. The poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) triblock copolymer of claim 1 , comprising 30 to 70 weight percent poly(phenylene ether) blocks.6. The poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) triblock copolymer of claim 1 , wherein the poly(hydroxy ether) block has a number average molecular weight of 2 claim 1 ,000 to 10 claim 1 ,000 atomic mass units.8. A method of forming a poly(phenylene ether)-poly(hydroxy ether)-poly(phenylene ether) triblock copolymer claim 1 , comprising: reacting a monohydroxy-terminated poly(phenylene ether) with a diepoxy-terminated poly(hydroxy ether) in the presence of a base.9. A composition comprising claim 1 , based on the total weight of the composition:30 to 93 weight percent of a polar polymer selected from the group consisting of cellulose esters, poly(alkyl(meth)acrylate)s, polyamides, polycarbonates, polyesters, polyetherimides, polysulfones, polyethersulfones, poly(ethylene-ethyl acrylate)s, poly(ethylene-vinyl acetate)s, polyurethanes, poly(vinyl ...

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Номер записи: 55
28-05-2015 дата публикации

POLYLACTIC ACID RESIN AND PACKAGING FILM COMPRISING THE SAME

Номер: US20150147549A1
Автор: Chung Jae-Il, Jeon Sung-Wan, LEE Kye Yune, Lee Tae-Woong, Yoo Young-Man
Принадлежит: SKI CHEMICALS CO.,LTD.

The present invention relates to a polylactic acid resin which is environment-friendly and is useful as a packaging material due to its properties including excellent heat resistance and flexibility, and a packaging film comprising the same. 1. A polylactic acid resin , comprising:a hard segment comprising a polylactic acid repeating unit of the following Chemical Formula 1; anda soft segment comprising a polyurethane polyol repeating unit in which polyether polyol repeating units of the following Chemical Formula 2 are linearly linked via a urethane bond, {'chemistry': {'@id': 'CHEM-US-00003', '@num': '00003', 'img': {'@id': 'EMI-C00003', '@he': '29.97mm', '@wi': '69.85mm', '@file': 'US20150147549A1-20150528-C00003.TIF', '@alt': 'embedded image', '@img-content': 'chem', '@img-format': 'tif'}}, 'br': None, 'sup': 14', '12', '14', '12, '% Cbio=(Weight ratio of C isotope to C isotope among the total carbon atoms contained in the polylactic acid resin)/(Weight ratio of C isotope to C isotope among the total carbon atoms contained in a standard material from the biomass source)\u2003\u2003[Equation 1]'}, 'wherein the polylactic acid resin has an organic carbon content (% Cbio) from the biomass source defined by the following Equation 1 of 60 wt % or morein the Chemical Formulae 1 and 2, A is a linear or branched alkylene of 2 to 5 carbon atoms, m is an integer of 10 to 100, and n is an integer of 700 to 5000.2. The polylactic acid resin of claim 1 , wherein the C isotope is contained in a content of 0.7×10wt % to 1.2×10wt % based on the total content of the carbon atoms contained in the polylactic acid resin.3. The polylactic acid resin of claim 1 , having the organic carbon content (% Cbio) from the biomass source defined by the Equation 1 of 70 wt % or more.4. The polylactic acid resin of claim 1 , wherein a generating amount of COin preparation of 1 kg of the polylactic acid resin is 1.0 kg or less claim 1 , when the polylactic acid resin is evaluated by the standard ...

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Номер записи: 56
25-05-2017 дата публикации

POLYPHENYLENE SULFIDE BLOCK COPOLYMER AND MANUFACTURING METHOD THEREFOR

Номер: US20170145165A1
Автор: Isago Hiroyuki, Matsumoto Hideki, Saito Kei, YAMANAKA Yuji
Принадлежит:

A polyphenylene sulfide block copolymer contains polyphenylene sulfide units and poly-organosiloxane units and has a glass-transition temperature in the range of 80° C. or lower and a weight-average molecular weight in the range of 35,000 to 100,000. The polyphenylene sulfide block copolymer has high flexibility as well as high heat resistance and heat aging resistance. 114-. (canceled)15. A polyphenylene sulfide block copolymer comprising:50 to 99% by weight of polyphenylene sulfide units (A); and50 to 1% by weight of polyorganosiloxane units (B),provided that the total amount of (A) and (B) is 100% by weight, the polyphenylene sulfide block copolymer having a glass-transition temperature of 80° C. or lower and a weight-average molecular weight of 35,000 to 100,000.16. The polyphenylene sulfide block copolymer according to claim 15 , wherein the polyorganosiloxane units (B) are polydimethylsiloxane units.17. The polyphenylene sulfide block copolymer according to claim 15 , wherein the polyorganosiloxane units (B) are contained in an amount of 10 to 40% by weight.18. The polyphenylene sulfide block copolymer according to claim 15 , wherein the polyphenylene sulfide block copolymer has a weight-average molecular weight of 45 claim 15 ,000 to 80 claim 15 ,000.20. The method according to claim 19 , wherein heating the polyphenylene sulfide (A) and the polyorganosiloxane (B) is carried out in an organic polar solvent.21. The method according to claim 19 , wherein the polyorganosiloxane (B) having functional groups has claim 19 , at its ends claim 19 , reactive functional groups selected from an epoxy group claim 19 , a carboxyl group claim 19 , an amino group claim 19 , a hydroxyl group claim 19 , an acid anhydride group claim 19 , an isocyanate group claim 19 , a silanol group claim 19 , an alkoxysilane group claim 19 , and derivatives thereof.23. The method according to claim 22 , wherein the reactive functional group of the monohalogenated compound (iv) having a ...

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Номер записи: 57
14-08-2014 дата публикации

METHOD FOR PREPARING FURANIC COPOLYAMIDE DERIVED FROM BIOMASS USING SOLID-STATE POLYMERIZATION

Номер: US20140228523A1
Автор: KIM Jaehoon, LEE Hong Shik, PARK Jong Min, YOHANA KURNIA Endah
Принадлежит: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Disclosed is a method for preparing a semi-furanic copolyamide containing at least one furanic dicarboxylic acid moiety and at least one aliphatic diamine moiety in the backbone. The method is based on solid-state polymerization. Particularly, the method uses a biomass-derived furanic dicarboxylic acid as a raw material. A semi-furanic copolyamide prepared by the method has molecular weight and color levels that are practically required in industrial applications. In addition, the semi-furanic copolyamide can replace fossil fuels due to its good thermal stability and is suitable for use as an environmentally friendly bioplastic. 2. The semi-furanic copolyamide compound according to claim 1 , wherein X and Y are each independently selected from the group consisting of oxygen (O) claim 1 , sulfur (S) and nitrogen (N) atoms claim 1 , l claim 1 , m and n are each independently an integer from 3 to 11 claim 1 , and p and q are each independently an integer from 50 to 1 claim 1 ,000.3. A method for preparing the semi-furanic copolyamide compound according to claim 1 , comprising:(a) adding two different polyamide salts to a stirred autoclave, and reacting the polyamide salts in a nitrogen atmosphere to prepare a copolyamide prepolymer comprising at least one furanic dicarboxylic acid moiety, at least one aliphatic dicarboxylic acid moiety and at least one aliphatic diamine moiety in the copolyamide backbone; and(b) pulverizing the copolyamide prepolymer prepared in (a), and reacting the copolyamide prepolymer in a solid-state polymerization reactor while feeding a mixed fluid of an inert gas and water into the reactor, to increase the molecular weight of the copolyamide prepolymer.4. The method according to claim 3 , wherein the polyamide salts used in step (a) are selected from the group consisting of polyamide 4 claim 3 ,F claim 3 , polyamide 4 claim 3 ,6 claim 3 , polyamide 4 claim 3 ,T and polyamide 6 claim 3 ,T salts.5. The method according to claim 3 , wherein claim ...

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Номер записи: 58
11-06-2015 дата публикации

POLY(4-HYDROXYBUTYRATE)-B-MONOMETHOXY(POLYETHYLENE GLYCOL) COPOLYMER NANOPARTICLES, PRODUCTION METHOD FOR SAME AND PHARMACEUTICAL COMPOSITION FOR BRAIN DISORDER TREATMENT CONTAINING SAME AS ACTIVE INGREDIENT

Номер: US20150158983A1
Автор: CHOI Mun-hwan, Shah Mohsin, YOON SUNG-CHUL
Принадлежит:

The present invention relates to poly(4-hydroxybutyrate)-b-monomethoxy(polyethylene glycol) copolymer nanoparticles, a method for preparing the same, and a pharmaceutical composition including the same as an active ingredient for treating brain disorders, in which the P(4HB)-b-mPEG nanoparticles according to the present invention break down slowly in brain cells such that gamma-hydroxybutyric acid (GHB) is released and so can sustainedly release a therapeutic level of concentration of GHB which is used as an agent for treating brain disorders such as epilepsy, and the nanoparticles are in the form of a hydrophobic polymer and so cannot easily be used as a hallucinogenic agent or narcotic agent due to the hydrophobic property whereby said nanoparticles do not dissolve in water or alcohol, and so can be used more safely than existing GHB, and hence, can advantageously be used instead of prior-art GHB therapeutic agents. 1. Poly(4-hydroxybutyrate)-b-monomethoxy(polyethylene glycol) copolymer nanoparticles (hereinafter , P(4HB)-b-mPEG nanoparticles) comprising surfaces of the nanoparticles being composed of polyethylene glycol and cores of the nanoparticles being composed of polyhydroxyalkanoic acid (PHA).2. A method of preparing P(4HB)-b-mPEG nanoparticles , the method comprising:a step of preparing poly(4-hydroxybutyrate) (hereafter, P(4HB)) (Step 1);a step of coupling monomethoxy(polyethylene glycol) (hereafter, mPEG) to a terminus of the P(4HB) (Step 2); anda step of preparing nanoparticles using a self-assembly method (Step 3).3. The method of claim 2 , wherein the poly(4-hydroxybutyrate) in the Step 1 is prepared by an organic synthesis or bacteria.4. The method of claim 2 , wherein the Step 2 is performed by a melt-esterification reaction without using a solvent under a nitrogenous environment using a tin-alkanoate catalyst at a reaction temperature of 100 to 190° C. for a reaction time of 20 to 50 minutes.5. The method of claim 2 , wherein the Step 3 is ...

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Номер записи: 59
21-08-2014 дата публикации

BRANCHED POLYAMIDE WITH DIFFERENT BLOCKS

Номер: US20140235798A1
Автор: Kukalyekar Nileshkumar Prakash, Ligthart Godefridus, Rulkens Rudy, Wang Zhujuan
Принадлежит: DSM IP ASSETS B.V.

The invention relates to a high molecular weight branched polyamide polymer comprising (a) blocks predominantly consisting of AA-BB repeat units, (b) blocks predominantly consisting of AB repeat units, and (c) branching units. The invention also relates to a process for the preparation of the high molecular weight branched polyamide polymer, comprising (1) a melt-mixing step wherein an essentially linear polyamide prepolymer (X-1), predominantly consisting of AA-BB repeat units, an essentially linear polyamide (pre)polymer (X-2), predominantly consisting of AB repeat units, and a branching agent are provided to and mixed and heated in a melt mixing apparatus, thereby forming a mixed melt, and the mixed melt being cooled, thereby forming a solid mixture; and (2) a solid state post condensation step wherein the solid mixture is post-condensed at elevated temperature in the solid state, thereby forming a high molecular weight branched polyamide polymer. 1. Process for the preparation of a high molecular weight branched polyamide polymer , comprising an essentially linear polyamide (pre)polymer (X-1), predominantly consisting of AA-BB repeat units,', 'an essentially linear polyamide (pre)polymer (X-2), predominantly consisting of AB repeat units, and', 'a branching agent, are provided to and mixed and heated in a melt mixing apparatus, thereby forming a mixed melt, and the mixed melt being cooled, thereby forming a solid mixture;', 'and, '(1) a melt-mixing step wherein'}(2) a solid state post condensation step wherein the solid mixture is post-condensed at elevated temperature in the solid state, thereby forming a high molecular weight branched polyamide polymer. the (pre)polymers (X-1) and (X-2) are provided in a weight ratio (X-1)/(X-2) in the range of 0.25-4;', 'the (pre)polymer (X-1) and/or the (pre)polymer (X-2) have a viscosity number (VN), measured according to ISO 307, in the range of 50-250 m L/g;', 'the branching agent is a branched polyamide oligomer/ ...

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Номер записи: 60
18-06-2015 дата публикации

POLYCARBONATE BLOCK COPOLYMERS

Номер: US20150166734A1
Автор: Allen Scott D., Hatfield David M., Salladay John M., Simoneau Chris A., Stevens John W.
Принадлежит:

The disclosure pertains to amphiphilic block copolymers comprising an aliphatic polycarbonate chain coupled to a hydrophilic polymer. Such amphiphilic polymers may have the formula A-L-B, where A- is a polycarbonate or polyethercarbonate chain having from about 3 to about 500 repeating units, L is a linker moiety and —B is a hydrophilic oligomer having from about 4 to about 200 repeating units. Provided copolymers are useful as surfactants capable of emulsifying aqueous solutions and supercritical carbon dioxide. Provided copolymers also have utility as additives for use in enhanced oil recovery methods. 191-. (canceled)94. The method of claim 93 , wherein Ris absent.95. The method of claim 93 , wherein Ris present.97. The method of claim 95 , wherein Ris a methyl group.98. The method of claim 95 , wherein Ris a random mixture of methyl groups and one or more moieties selected from group consisting of ethyl claim 95 , trifluoromethyl claim 95 , chloromethyl claim 95 , —CHOR claim 95 , and a Calkyl group.99. The method of claim 92 , wherein X′ is —OH.100. The method of claim 92 , wherein X′ is —OR.101. The method of claim 100 , wherein a block copolymer formed by the step of reacting the epoxide with carbon dioxide and a polyether chain transfer agent is further modified by a reaction to convert —X′ from an —OH group to an —ORgroup.102. The method of claim 101 , wherein the block copolymer is modified by a reaction chosen from the group consisting of alkylation claim 101 , acylation claim 101 , sulfonation claim 101 , or silylation.103. The method of claim 92 , wherein —Z— is —CHCH—.104. The method of claim 92 , wherein —Z— is —CH(CH)CH—.105. The method of claim 92 , wherein —Z— is —CH—.106. The method of claim 92 , wherein —Y is —H.107. The method of claim 92 , wherein —Y is a Caliphatic group.108. The method of claim 92 , wherein —Y is a hydroxyl protecting group.109. The method of claim 108 , further comprising the step of treating the block copolymer to convert ...

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Номер записи: 61
15-06-2017 дата публикации

NEW POLY(ETHYLENE IMINE)-BASED COPOLYMERS FOR BONDING TO AND RELEASING GENETIC MATERIAL, IN PARTICULAR DNA/RNA, AND METHOD FOR THE PRODUCTION AND USE OF SAME

Номер: US20170166697A1
Автор: Englert Christoph, GOTTSCHALDT Michael, SCHUBERT Ulrich S., TAUHARDT Lutz
Принадлежит:

Poly(ethylene imine)-based copolymers especially suited for bonding to the releasing genetic material, in particular DNA/RNA are of the general Formula I 4. The method according to claim 3 , wherein Y is —OH or —NHS claim 3 , and functionalization is introduced in the presence of (1-ethyl-3-(3-dimethylaminopropyl) carbodiimide or dicyclohexylcarbodiimide as an activating agent.6. (canceled)7. (canceled)8. The poly(ethylene imine)-based copolymers according to claim 1 , wherein the organic residue is an alkyl or an aryl group.9. The method of releasably bonding genetic material claim 1 , comprising contacting the genetic material with a poly(ethylene imine)-based copolymer of whereby the genetic material is releasably bonded to the poly(ethylene imine)-based copolymer.10. The method according to claim 9 , wherein the poly(ethylene imine)-based copolymer comprises a hydrogel.11. The method of claim 9 , wherein the poly(ethylene imine)-based copolymer comprises beads or particles.12. The method of claim 10 , wherein the poly(ethylene imine)-based copolymer comprises beads or particles.13. The method of claim 10 , wherein the hydrogel comprises a coating on a substrate.14. The method of claim 13 , wherein the substrate is made of glass.15. The method of claim 10 , wherein the hydrogel is comprised of a plurality of distinct layers of the hydrogel.16. The method according to claim 3 , wherein the genetic material comprises at least one of DNA and RNA. The invention relates to new poly(ethylene imine)-based copolymers. Furthermore, the invention also includes the method for their preparation as well as function-specific uses of the copolymers.2-(3-butenyl)-2-oxazoline is already known as a monomer (A. Gress, A. Völkel, H. Schlaad; Thio-click modification of poly[2-(3-butenyl)-2-oxazoline] Macromolecules 40, 2007, 7928-7933), which is produced by the functionalization of (2-chloroethylamine)-hydrochloride with N-succinimidyl-4-pentenate, followed by a ring closure. The ...

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Номер записи: 62
25-06-2015 дата публикации

COPOLYMERS HAVING GEM-ACETOPHONE GROUPS

Номер: US20150175752A1
Автор: Chougrani Kamel, Leising Frederic
Принадлежит: CHRYSO

The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem acetophosphonate groups, an adjuvant for suspensions of mineral particles comprising said copolymer and a method for preparing said copolymer. 1. A copolymer comprising a main hydrocarbon chain and side groups , wherein the side groups comprise carboxylic groups , polyoxyalkylate groups and gem acetophosphonate groups.2. The copolymer according to claim 1 , wherein the polyoxyalkylate side groups are bound to the main chain through an ester claim 1 , ether or amide bond.4. The copolymer according to claim 3 , wherein the gem acetophosphonate groups are of formula (IA) claim 3 , L forming with a carboxylic group of the copolymer an amide function or an ester group.5. The copolymer according to claim 3 , wherein the gem acetophosphonate groups are of formula (IA) claim 3 , n being equal to 0.6. The copolymer according to claim 3 , wherein the gem acetophosphonate groups are of formula (IA) claim 3 , n being equal to 1 and X being a C-Calkylene group.7. The copolymer according to claim 3 , wherein the gem acetophosphonate groups are of formula (IA) claim 3 , Rbeing a hydrogen atom or an alkaline claim 3 , earth-alkaline or ammonium cation.8. The copolymer according to claim 3 , wherein the gem acetophosphonate groups are of formula (IA) claim 3 , Rbeing a hydroxyl group or a hydrogen atom.9. The copolymer according to claim 1 , wherein the polyoxyalkylate groups are of the formula (II) below:{'br': None, 'sub': 'e', '—R—Z-A\u2003\u2003(II)'}wherein:{'sub': e', '1', '12, 'Ris a C-Calkylene group or a C═O group or further absent; and'}{'sup': 4', '4, 'sub': 1', '6, 'Z is an oxygen atom or a group N—R, wherein Ris a hydrogen or a C-Calkyl group; and'}{'sub': 'm', 'sup': '3', 'claim-text': Q represents an alkylene group with 2 to 4 carbon atoms or a mixture of these alkylene groups;', ...

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Номер записи: 63
23-06-2016 дата публикации

BIOCOMPATIBLE IODINATED DIPHENOL MONOMERS AND POLYMERS

Номер: US20160177028A1
Автор: Bolikal Durgadas, Kohn Joachim B.
Принадлежит:

Disclosed are monomeric compounds which may be polymerized to form novel biodegradable and bioresorbable polymers and co-polymers. These polymers and co-polymers, while not limited thereto, may be adapted for radioopacity and are useful for medical device applications and controlled release therapeutic formulations. 2. The polymer of wherein X claim 1 , X claim 1 , Xand Xare all oxygen atoms.3. The polymer of wherein Aris phenylene substituted with at least one iodine atom.4. The polymer of wherein Aris phenylene substituted with two iodine atoms in positions ortho to X.5. The polymer of wherein B is an alkylene group comprising the structure (CH)wherein n is an integer from 1 to 10.6. The polymer of wherein n is an integer selected from the group consisting of 3 claim 5 , 5 and 6.7. The polymer of wherein B is a methylene group having the formula —CH—.8. The polymer of wherein B is a branched chain ethylene group having the formula —CH(CH)—.9. A radio-opaque copolymer of lactic acid with 3 claim 5 ,5-diiodo-4-hydroxybenzoic acid.10. A radio-opaque copolymer of glycolic acid with 3 claim 5 ,5-diiodo-4-hydroxybenzoic acid.11. A radio-opaque copolymer of lactic acid and glycolic acid with 3 claim 5 ,5-diiodo-4-hydroxybenzoic acid.13. The compound of wherein each X claim 12 , X claim 12 , X claim 12 , X claim 12 , Xand Xis an O atom.14. The compound of wherein both Arand Arare phenylene groups substituted with two iodine atoms.15. The compound of wherein Ris an alkylene group containing from one to ten carbon atoms claim 12 , or a bond.16. The compound of wherein Ris a bond.18. The polymer of wherein each X claim 17 , X claim 17 , X claim 17 , X claim 17 , X claim 17 , and Xis an oxygen atom.19. The polymer of wherein each Arand Aris independently phenylene substituted with at least one iodine atom.20. The polymer of wherein Arand Arare both phenylene groups substituted with two iodine atoms.21. The polymer of wherein Rand Rare each independently an alkylene group ...

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Номер записи: 64
23-06-2016 дата публикации

PHOTODEGRADABLE CROSS-LINKING AGENT, PHOTODEGRADABLE GEL, CELL CULTURE INSTRUMENT, CELL ARRANGEMENT-SORTING APPARATUS, CELL ARRANGEMENT METHOD, CELL SORTING METHOD, TISSUE FORMING METHOD, AND TISSUE

Номер: US20160177030A1
Автор: KANAMORI Toshiyuki, SUGIURA Shinji, SUMARU Kimio, TAKAGI Toshiyuki, YANAGAWA Fumiki
Принадлежит:

The present invention provides a photodegradable cross-linking agent capable of manufacturing a photodegradable gel, which has appropriate moisture content and water solubility as a cell carrier and has strength that makes it possible to construct a complicated three-dimensional microstructure. The photodegradable cross-linking agent of the present invention includes a main chain which is composed of branched polyethylene glycol having three or more branched chains and a photodegradable benzyl group which is disposed on the terminus of the branched chains, in which the benzyl group has an active ester group , which is reactive with an amino group or a hydroxyl group, and one or more nitro groups in a benzene ring. 1. A photodegradable cross-linking agent comprising:a polyethylene glycol main chain which has three or more branched chains; anda photodegradable benzyl group which is disposed on the terminus of the polyethylene glycol main chain having the branched chains,the benzyl group having an active ester group, which is reactive with an amino group or a hydroxyl group, and one or more nitro groups in a benzene ring of the benzyl group.2. The photodegradable cross-linking agent according to claim 1 ,wherein the active ester group is a derivative of N-hydroxysuccinimide.3. The photodegradable cross-linking agent according to claim 1 ,wherein the average repetition number of ethylene glycol in the branched chains is within a range of 20 to 500.4. The photodegradable cross-linking agent according to claim 1 ,wherein the number of the branched chains is 4 or 8.5. The photodegradable cross-linking agent according to claim 1 ,wherein the polyethylene glycol main chain has a neopentyl skeleton.6. A photodegradable gel characterized in that it is obtained by reacting the photodegradable cross-linking agent according to with a polymer compound having a total of two or more amino groups or hydroxyl groups in a molecule claim 1 ,the amino groups or the hydroxyl groups in the ...

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Номер записи: 65
23-06-2016 дата публикации

ANTIMICROBIAL AND BACTERIOSTATIC-MODIFIED POLYMERS FOR CELLULOSE FIBRES

Номер: US20160177039A1
Автор: Guan Yong, Xiao Huining
Принадлежит:

Polysaccharide fibres, such as cellulose or starch, modified by grafting an amino-containing antimicrobial polymer (ACP) onto the fibres or starch using a co-polymerization reaction, exhibits high antimicrobial activity. For example, the presence of 1.0% by weight grafted polymer in the cellulose fibres or starch fibres results in excellent antimicrobial activity (over 99% inhibition). The application further discloses that including triclosan or butylparaben into a novel cationic β-cyclodextrin polymer or nanocapsule yields a bacteriostat. 1. A method of grafting an amino-containing polymer onto starch , producing modified starch suitable for use as an additive to paper products , the method comprising the steps of:(a) reacting the amino-containing polymer with glycidyl methacrylate to produce modified amino-containing polymer;(b) adding the modified amino-containing polymer and an initiator to a solution or suspension of starch;(c) adjusting the pH of the suspension or solution of starch;(d) adjusting the temperature of the suspension or solution of starch; and(e) stopping the reaction after sufficient time and isolating the modified starch.2. A method of grafting an amino-containing polymer onto starch according to wherein the sufficient time in step (e) is about 60 minutes.3. A method of grafting an amino-containing polymer onto starch according to claim 1 , wherein step (d) further comprises adjusting the temperature to a temperature in the range of about 30 to 40 degrees Celsius.4. A method of grafting an amino-containing polymer onto starch according to claim 1 , wherein step (c) further comprises adjusting the pH of the suspension or solution to a pH of about 6.5. A method of grafting an amino-containing polymer onto starch claim 1 , producing modified starch suitable for use as an additive to paper products claim 1 , the method comprising the steps of:(a) adjusting the pH of a water solution or suspension of starch in a flask;(b) dropwise adding a coupling ...

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Номер записи: 66
22-06-2017 дата публикации

POLYISOBUTYLENE-POLYURETHANES AND MEDICAL DEVICES CONTAINING THE SAME

Номер: US20170174845A1
Автор: Adenusi Adegbola O., Aremu Adeniyi O., Delaney, Gurung Niraj, JR. Joseph T., Willoughby Patrick, Wulfman David R.
Принадлежит:

A polymeric material includes a polyisobutylene-polyurethane block copolymer and a tertiary amine catalyst. The polyisobutylene-polyurethane block copolymer includes soft segments including at least one polyisobutylene diol residue, and hard segments including at least one diisocyanate residue. The polymeric material is free of an organometallic catalyst. 1. A polymeric material comprising: soft segments including at least one polyisobutylene diol residue, the soft segments present in the copolymer in an amount of about 40% to about 70% by weight of the copolymer; and', 'hard segments including at least one diisocyanate residue, the hard segments present in the copolymer in an amount of about 30% to about 60% by weight of the copolymer; and, 'a polyisobutylene-polyurethane block copolymer includinga tertiary amine catalyst, wherein the polymeric material is free of an organometallic catalyst.2. The polymeric material of claim 1 , wherein the tertiary amine catalyst includes 2 claim 1 ,6-dimethylpyridine.3. The polymeric material of claim 1 , wherein the tertiary amine catalyst is selected from the group consisting of 2-tert-butyl-1 claim 1 ,1 claim 1 ,3 claim 1 ,3-tetramethylguanidine claim 1 , 1 claim 1 ,5-diazabicyclo[4.3.0]non-5-ene claim 1 , 1 claim 1 ,8-diazabicyclo[5.4.0]undec-7-ene claim 1 , N claim 1 ,N-diisopropylmethylamine claim 1 , N claim 1 ,N-dimethylcyclohexylamine claim 1 , N claim 1 ,N claim 1 ,N′ claim 1 ,N′ claim 1 ,N″-pentamethyldiethylenetriamine claim 1 , 4-methylmorpholine claim 1 , 4-ethylmorpholine claim 1 , 1-methylimidazole claim 1 , N-ethyldiisopropylamine claim 1 , 7-methyl-1 claim 1 ,5 claim 1 ,7-triazabicyclo[4.4.0]dec-5-ene claim 1 , N claim 1 ,N claim 1 ,N claim 1 ,N-tetramethylethylenediamine claim 1 , N claim 1 ,N claim 1 ,N′-trimethylethylenediamine claim 1 , tributylamine claim 1 , triethylamine claim 1 , and tris[2-(dimethylamino)ethyl]amine.4. The polymeric material of claim 1 , wherein the diisocyanate residue includes 4 claim ...

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Номер записи: 67
02-07-2015 дата публикации

ENHANCED AFFINITY LIGANDS

Номер: US20150183939A1
Автор: Giovanelli Emerson, Lequeux Nicolas, Pons Thomas
Принадлежит:

The present invention relates to ligands, nanocrystal complexed with the ligands and their use for bio-imaging. 115-. (canceled)17. The ligand according to claim 16 , wherein the zwitterionic moiety comprises an aminocarboxylate claim 16 , an aminosulfonate claim 16 , a carboxybetaine moiety wherein the ammonium group may be included in an aliphatic chain claim 16 , a five-membered cycle claim 16 , a five-membered heterocycle comprising 1 claim 16 , 2 or 3 further nitrogen atoms claim 16 , a six-membered cycle claim 16 , a six-membered heterocycle comprising 1 claim 16 , 2 claim 16 , 3 or 4 further nitrogen atoms claim 16 , a sulfobetaine moiety wherein the ammonium group may be included in an aliphatic chain claim 16 , a five-membered cycle claim 16 , a five-membered heterocycle comprising 1 claim 16 , 2 or 3 further nitrogen atoms claim 16 , a six-membered cycle claim 16 , a six-membered heterocycle comprising 1 claim 16 , 2 claim 16 , 3 or 4 further nitrogen atoms claim 16 , a phosphobetaine wherein the ammonium group may be included in an aliphatic chain claim 16 , a five-membered cycle claim 16 , a five-membered heterocycle comprising 1 claim 16 , 2 or 3 further nitrogen atoms claim 16 , a six-membered cycle claim 16 , a six-membered heterocycle comprising 1 claim 16 , 2 claim 16 , or 4 further nitrogen atoms claim 16 , a phosphorylcholine claim 16 , a phosphocholine moiety claim 16 , and combinations thereof.18. The ligand according to claim 16 , wherein the second moiety Mcomprises at least one zwitterionic moiety.19. The ligand according to claim 16 , wherein x+y is ranging from 5 to 500.22. The ligand according to claim 16 , wherein said first moiety M claim 16 , M′ or M″ having affinity for the surface of a nanocrystal is a thiol moiety claim 16 , a dithiol moiety claim 16 , an imidazole moiety claim 16 , a catechol moiety claim 16 , a pyridine moiety claim 16 , a pyrrole moiety claim 16 , a thiophene moiety claim 16 , a thiazole moiety claim 16 , a ...

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Номер записи: 68
30-06-2016 дата публикации

NOVEL PLGA-MODIFIED POLYETHYLENIMINE SELF-ASSEMBLY NANOTECHNOLOGY FOR NUCLEIC ACID AND DRUG DELIVERY

Номер: US20160184443A1
Автор: Chen Changyi, Lu Jian-Ming, Yao Qizhi
Принадлежит:

Embodiments of the invention concern copolymers and nanoparticles for use as delivery agents for one or more agents for therapy for a medical condition of humans and animals. Some of embodiments of the invention provide new reagents for biomedical research in cell culture, animal models and plants, for example. The copolymers comprise PLGA and PEI and, in some embodiments, also comprise 1-(3-aminopropyl)-4-methylpiperazine (APMP), Fc binding peptide and/or antibody. In certain embodiments, APMP-PLGA-PEI, Fc binding peptide/antibody-PLGA-PEI or Fc binding peptide/antibody-AP-MP-PLGA-PEI nanoparticles comprising one or more therapeutic agents are delivered to an individual in need thereof or used for biomedical research in cell cultures, animal models and plants. 1. A copolymer composition comprising poly(lactic-co-glycolic acid) (PLGA) and polyethylenimine (PEI) , wherein the w/w ratio of PLGA to PEI is 0.5:1 , 1:1 , 2:1 , or 5:1.2. A copolymer composition comprising PLGA and PEI , wherein the w/w ratio of PLGA to PEI is 0.5:1 and wherein about 70-130 lactide-co-glycolide units from PLGA are conjugated to a PEI molecule through an amide linkage.3. A copolymer composition comprising PLGA and PEI , wherein the primary amine concentration is about 40% to about 55%.4. The composition of claim 3 , wherein the primary amine concentration is about 45% to about 55%.5. The composition of claim 3 , wherein the primary amine concentration is about 45% to about 52%.6. The composition of claim 3 , wherein the primary amine concentration is about 46% to about 52%.7. A copolymer composition comprising PLGA claim 3 , PEI claim 3 , and another compound selected from the group consisting of 1-(3-aminopropyl)-4-methylpiperazine (APMP) claim 3 , 2-(3-aminopropylamino)ethanol claim 3 , 2-methyl-1 claim 3 ,5-diaminopentane claim 3 , 1-(3-aminopropyl)pyrrolidine claim 3 , 4-aminophenyl disulfide and cystamine.8. The composition of claim 7 , wherein the compound is APMP.9. A copolymer ...

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Номер записи: 69
28-06-2018 дата публикации

COATING COMPOSITION AND METHOD OF PREPARING THE SAME

Номер: US20180179416A1
Автор: CHIEN Shu-Yun, HSU Ya-I, Huang Yuan-Chang, Su Yi-Che, Tang Wei-Cheng
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

The embodiments of the present disclosure provide a coating composition, including: polysilsesquioxane polymer modified organic resin represented by Formula (1): 2. The coating composition as claimed in claim 1 , wherein Rcomprises a polyester resin moiety claim 1 , a silicon modified polyester resin moiety claim 1 , a polyurethane resin moiety claim 1 , or an acrylic resin moiety.9. The method for preparing the coating composition as claimed in claim 8 , wherein the catalyst comprises dibutyltin dilaurate claim 8 , dibutyl tin dioctoate claim 8 , tetraisopropyltitanate claim 8 , or tetrabutyl titanate.10. The method for preparing the coating composition as claimed in claim 8 , wherein Rcomprises a polyester resin moiety claim 8 , a silicon modified polyester resin moiety claim 8 , a polyurethane resin moiety claim 8 , or an acrylic resin moiety. This Application claims priority of Taiwan Patent Application No. 105143529, filed on Dec. 28, 2016, the entirety of which is incorporated by reference herein.The disclosure relates to a coating composition and a method of preparing the same.Organic polymeric materials are widely used in coating materials and optoelectronic products because of their lightness, thinness and flexibility. However, organic materials are poor in weatherability due to the low bond energy between atoms. Although inorganic materials have a high weatherability which may resist ultraviolet ray damage in sunlight, inorganic materials have poor film formability and flexibility, which may cause the film layer to be prone to peeling off.Therefore, a coating composition with high film formability is required in the industry so as to form a film layer having high weatherability, high flexibility, and high mechanical strength.The embodiments of the present disclosure provide a coating composition, including: polysilsesquioxane polymer modified organic resin represented by Formula (1):Wherein, Ris Cepoxy group, Cacrylate group, Calkylacryloxy group, ...

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Номер записи: 70
18-09-2014 дата публикации

COPOLYMERS FOR STABLE MICELLE FORMULATIONS

Номер: US20140271885A1
Автор: Sill Kevin, Vojkovsky Tomas
Принадлежит: Intezyne Technologies, Inc.

The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same. Compositions herein are useful for drug-delivery applications. The present application claims priority to U.S. provisional patent application Ser. No. 61/798,881, filed Mar. 15, 2013, the entirety of which is hereby incorporated by reference herein.The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and uses thereof.The development of new therapeutic agents has dramatically improved the quality of life and survival rate of patients suffering from a variety of disorders. However, drug delivery innovations are needed to improve the success rate of these treatments. Specifically, delivery systems are still needed which effectively minimize premature excretion and/or metabolism of therapeutic agents and deliver these agents specifically to diseased cells thereby reducing their toxicity to healthy cells.Rationally-designed, nanoscopic drug carriers, or “nanovectors,” offer a promising approach to achieving these goals due to their inherent ability to overcome many biological barriers. Moreover, their multi-functionality permits the incorporation of cell-targeting groups, diagnostic agents, and a multitude of drugs in a single delivery system. Polymer micelles, formed by the molecular assembly of functional, amphiphilic block copolymers, represent one notable type of multifunctional nanovector.Polymer micelles are particularly attractive due to their ability to deliver large payloads of a variety of drugs (e.g. small molecule, proteins, and DNA/RNA therapeutics), their improved in vivo stability as compared to other colloidal carriers (e.g. liposomes), and their nanoscopic size which allows for passive accumulation in diseased tissues, such as solid tumors, by the enhanced permeation and retention (EPR) effect. Using appropriate surface functionality, polymer micelles are ...

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Номер записи: 71
29-06-2017 дата публикации

BIOMARKER SPECIFIC AMPHIPHILIC NANOPARTICLES

Номер: US20170183454A1
Автор: BAE Seo Ryung, Choi Jihye, Haam Seungjoo, Huh Yong-Min, JANG Eunji, KANG Byunghoon, Kim Hyun-Ouk, Noh Ilkoo, Suh Jin-Suck, Yang Jaemoon
Принадлежит:

The present invention relates to an amphiphilic nanoparticle specific to a biomarker, and more particularly, provides an amphiphilic nanoparticle which may be used as a diagnosis or treatment-type drug or gene carrier by selectively recognizing a proteolytic enzyme specifically expressed in a cellular membrane of a specific cell, and then being bound to the proteolytic enzyme to efficiently achieve the intracellular uptake and selective cleavage. The amphiphilic nanoparticle of the present invention may be used in the diagnosis or therapy of a disease. 1. An amphiphilic nanoparticle comprising:a block copolymer containing a hydrophilic polymer and a hydrophobic polymer (A); anda block copolymer containing a peptide cleaved by a proteolytic enzyme and a hydrophobic polymer (B).2. The amphiphilic nanoparticle of claim 1 , wherein the hydrophilic polymer is one or more selected from the group consisting of polyalkylene glycol claim 1 , polyethylene oxide claim 1 , polyoxazoline claim 1 , poly(N-vinylpyrrolidone) claim 1 , polyvinyl alcohol claim 1 , polyhydroxyethylmethacrylate claim 1 , dextran claim 1 , polyserine claim 1 , polythreonine claim 1 , polytyrosine claim 1 , polylysine claim 1 , polyarginine claim 1 , polyhistidine claim 1 , polyaspartic acid claim 1 , and polyglutamic acid.3. The amphiphilic nanoparticle of claim 1 , wherein the hydrophilic polymer comprises methoxy amino polyethylene glycol.4. The amphiphilic nanoparticle of claim 1 , wherein the hydrophobic polymer is a homopoly amino acid represented by the following Chemical Formula 1:{'br': None, '(poly-M)n \u2003\u2003[Chemical Formula 1]'}here,M is leucine, isoleucine, valine, phenylalanine, proline, glycine, or methionine, and n represents 10 to 100.5. The amphiphilic nanoparticle of claim 1 , wherein the peptide cleaved by a proteolytic enzyme is represented by any one of amino acid sequences described in SEQ ID NOS.: 1 to 13.6. The amphiphilic nanoparticle of claim 1 , wherein the amphiphilic ...

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Номер записи: 72
18-09-2014 дата публикации

BIO-BASED BLOCK POLYMERS DERIVED FROM LIGNIN AND FATTY ACIDS

Номер: US20140275435A1
Автор: EPPS, Holmberg Angela L., III Thomas H., Stanzione Joseph F., Wool Richard
Принадлежит: University of Delaware

The present invention pertains to bio-based block polymers synthesized from functionalized lignin-based molecules (A-monomer) and functionalized fatty acids or fatty alcohols (B-monomer) derived from plant or animal oils, waxes or fats. The block polymers can be synthesized via numerous polymerization techniques, such as reversible addition-fragmentation chain transfer (RAFT). Most importantly, this class of bio-based block polymers shows promise as providing sustainable yet scalable and tunable thermoplastic elastomers and pressure-sensitive adhesives, among other applications. 1. A block polymer comprising at least one A-block and at least one B-block , wherein the A-block contains a polymerized lignin-based monomer or polymerized combination of lignin-based monomers and the B-block contains a polymerized fatty acid-based monomer , polymerized fatty alcohol-based monomer or a polymerized combination of fatty acid-based monomer(s) or fatty alcohol-based monomer(s).2. The block polymer of claim 1 , wherein the lignin-based monomer or combination of lignin-based monomers is selected from the group consisting of phenols claim 1 , cresols claim 1 , xylenols claim 1 , guaiacols claim 1 , catechols claim 1 , eugenols claim 1 , syringols claim 1 , vanillin claim 1 , and acid derivatives thereof.3. The block polymer of claim 1 , wherein the lignin-based monomer(s) contains at least one chemical functionality selected from the group consisting of methacrylate claim 1 , acrylate claim 1 , maleic claim 1 , allyl claim 1 , hemiacetal claim 1 , acetal claim 1 , imine claim 1 , amine claim 1 , hydroxyl claim 1 , methoxy claim 1 , alkyl claim 1 , alkenyl claim 1 , acrylamide claim 1 , cyanate ester claim 1 , carboxyl claim 1 , ether claim 1 , carbonyl claim 1 , aldehyde claim 1 , azide claim 1 , cyanate claim 1 , isocyanate claim 1 , nitrile claim 1 , thiol claim 1 , sulfide claim 1 , disulfide claim 1 , ester claim 1 , sulfoxide claim 1 , and epoxy moieties and combinations ...

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Номер записи: 73
06-07-2017 дата публикации

HYDROGEL

Номер: US20170190844A1
Автор: Li Lin, YAN Bin, Zeng Hongbo
Принадлежит: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA

A novel mussel-inspired injectable hydrogel with self-healing and anti-biofouling capabilities is developed, possessing great potential as drug delivery carrier. The hydrogel can heal autonomously from repeated structural damage and also effectively prevent nonspecific cell attachment and biofilm formation. 1. A polymer comprising at least one block A and one block B , where A is a thermo-responsive copolymer comprising at least one monomer having a lower critical solution temperature and at least one self-healing monomer and B is a hydrophilic polymer block.2. The polymer of in which A is formed of a random copolymer.3. The polymer of in which the random copolymer comprises DN where D is dopamine acrylamide and N is NIPAM.5. The polymer of in which the self-healing monomer is provided with a self-healing property at least in part by catechol groups.6. The polymer of in which A is formed of a random copolymer.7. The polymer of in which the random copolymer comprises DN where D is dopamine acrylamide and N is NIPAM.9. The polymer of in which the self-healing monomer is provided with a self-healing property at least in part by aromatic groups.10. The polymer of in which A is formed of a random copolymer.11. The polymer of in which the random copolymer comprises DN where D is dopamine acrylamide and N is NIPAM. Hydrogels.Injectable hydrogels are emerging as promising materials for biomedical applications like drug delivery because of their biocompatibility, ease of administration and minimal invasion due to their high resemblance with natural extracellular matrices. Bioactive molecules like drugs, proteins, DNA and antibodies can be easily mixed with precursor solutions and loaded at target site via an in-situ gelation right after the injection. The release of these bioactive molecules can be performed in a sustainable or burst way on demand in response to external stimuli such as change in temperature or pH, introduction of redox or biomolecules, and exposure to light ...

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Номер записи: 74
25-09-2014 дата публикации

Method For Manufacturing Block Copolymer

Номер: US20140288244A1
Автор: Kitagawa Masayuki, YAMAMOTO Keiichirou
Принадлежит: Nippon Kayaku Kabushiki Kaisha

Providing a method for producing a compound represented by formula (1) from a compound represented by formula (2), by which the additive amount of an aryl (C1-C8) alkyl alcohol which may have a substituent and the amount of residual carboxyl groups of pAsp (polyaspartic acid) are controlled. 2. The method for producing a block copolymer according to claim 1 , wherein R1 represents a methyl group; R2 represents a trimethylene group; R3 represents a methylene group; R4 represents an acetyl group; n is 80 to 400; m is 15 to 60; a is 5 to 60; and b is 5 to 60.3. The method for producing a block copolymer according to claim 1 , wherein the carbodiimide-based compound is diethylcarbodiimide claim 1 , diisopropylcarbodiimide claim 1 , dicyclohexylcarbodiimide claim 1 , or 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide or an inorganic acid salt thereof.4. The method for producing a block copolymer according to claim 1 , wherein the carbodiimide-based compound is diisopropylcarbodiimide.5. The method for producing a block copolymer according to claim 2 , wherein the carbodiimide-based compound is diethylcarbodiimide claim 2 , diisopropylcarbodiimide claim 2 , dicyclohexylcarbodiimide claim 2 , or 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide or an inorganic acid salt thereof.6. The method for producing a block copolymer according to claim 2 , wherein the carbodiimide-based compound is diisopropylcarbodiimide.7. The method for producing a block copolymer according to claim 3 , wherein the carbodiimide-based compound is diisopropylcarbodiimide.8. The method for producing a block copolymer according to claim 5 , wherein the carbodiimide-based compound is diisopropylcarbodiimide. The present invention relates to a micelle preparation containing a block copolymer and a drug using the copolymer, and a method for producing a block copolymer for an anticancer drug containing the micelle composition as an active ingredient.Many of drugs, particularly anticancer drugs, are hydrophobic ...

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Номер записи: 75
18-06-2020 дата публикации

METHODS AND SYSTEMS FOR IMPROVED DROPLET STABILIZATION

Номер: US20200188920A1
Автор: Delaney Joshua, Price Andrew D.
Принадлежит:

The present disclosure provides methods for forming emulsions. A method for forming an emulsion comprises: bringing a first fluid phase in contact with a second fluid phase that is immiscible with the first fluid phase to generate the emulsion comprising the plurality of droplets. The plurality of droplets may comprise (i) the first fluid phase or the second fluid phase, (ii) a first surfactant at an interface between the first fluid phase and the second fluid phase, and (iii) a second surfactant that is different than the first surfactant. Subsequent to generating the emulsion, collect or direct the plurality of droplets along a channel. Subsequent to collecting or directing the plurality of droplets along the channel, at most 5% of the plurality of droplets coalesce. 1. A method for forming an emulsion comprising a plurality of droplets , comprising:(a) bringing a first fluid phase in contact with a second fluid phase that is immiscible with said first fluid phase to generate an emulsion comprising said plurality of droplets, wherein said plurality of droplets comprises (i) said first fluid phase or said second fluid phase, (ii) a first surfactant at an interface between said first fluid phase and said second fluid phase, and (iii) a second surfactant that is different than said first surfactant; and(b) upon generating at least a subset of said plurality of droplets, (i) collecting said plurality of droplets or (ii) directing said plurality of droplets along a channel, wherein upon collecting or directing said plurality of droplets along said channel, at most 5% of said plurality of droplets coalesce.2. The method of claim 1 , wherein said first surfactant at said interface prevents said second surfactant from flowing from said first fluid phase to said second fluid phase.3. The method of claim 1 , wherein said first surfactant is a di-block copolymer comprising a perfluorinated polyether block bonded to a polyethylene glycol block.4. (canceled)5. (canceled)6. ( ...

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Номер записи: 76
20-07-2017 дата публикации

Segmented, p-Dioxanone-Rich, Poly(p-Dioxanone-co-epsilon-Caprolactone) Copolymers for Medical Applications and Devices Made Therefrom

Номер: US20170202996A1
Автор: Andjelic Sasa, Keilman Kenneth
Принадлежит:

Novel semi-crystalline, p-dioxanone-rich ABA triblock copolymers of p-dioxanone and epsilon-caprolactone, where “B” block is a random copolymer of p-dioxanone and epsilon-caprolactone, and absorbable devices for long term medical applications are disclosed. The novel polymer compositions are useful for long term absorbable surgical sutures, and other medical devices. 1. An absorbable copolymer of the structure A-B-A comprising end segments A and middle segment B , wherein end-segments A comprise polymerized p-dioxanone blocks and the middle segment B is a copolymer comprising a polymerized p-dioxanone-co-epsilon-caprolactone block , and wherein said middle segment B is fully amorphous and contains about 60 mole percent to about 90 mole percent of polymerized epsilon-caprolactone , and about 10 mole percent to about 40 mole percent of polymerized p-dioxanone , and wherein the total amount of polymerized p-dioxanone in the absorbable copolymer is between about 80 mole percent to about 95 mole percent.2. The absorbable copolymer of claim 1 , having an inherent viscosity claim 1 , IV greater than 1.0 dl/g claim 1 , and a weight average molecular weight claim 1 , Mw greater than 30 claim 1 ,000 Daltons.3. The absorbable copolymer of claim 1 , having a crystallinity level greater than 30% as measured by wide angle X-ray diffraction claim 1 , WAXD.4. The absorbable copolymer of claim 1 , containing less than 20 mole % epsilon-caprolactone.5. An absorbable medical device claim 1 , comprising: an absorbable copolymer of the structure A-B-A comprising end segments A and middle segment B claim 1 , wherein end-segments A comprise polymerized p-dioxanone blocks and the middle segment B is a copolymer comprising a polymerized p-dioxanone-co-epsilon-caprolactone block claim 1 , and wherein said middle segment B is fully amorphous and contains about 60 mole percent to about 90 mole percent of polymerized epsilon-caprolactone claim 1 , and about 10 mole percent to about 40 mole ...

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Номер записи: 77
02-10-2014 дата публикации

TELECHELIC BASED NETWORKS FROM NOVEL MACROMONOMERS, COMPOSITIONS, PREPARATION AND USES THEREOF

Номер: US20140296425A1
Автор: Crosby Alfred J., Cui Jun, Lackey Melissa A., Tew Gregory N., Walker Catherine N.
Принадлежит:

The invention provides highly resilient synthetic hydrogels, which can be prepared, for example, by using the efficient thiol-norbornene chemistry to cross-link hydrophilic poly(ethylene glycol) (PEG) and hydrophobic polydimethylsiloxane (PDMS) polymer chains. The simple hydrogel system with enhanced mechanical properties is useful in many applications, including in the biomedical field and in the design of protective and corrective wear. 1. A crosslinked block copolymer network comprising hydrophilic blocks and hydrophobic blocks , wherein the hydrophilic blocks comprise poly(ethylene glycol) and the hydrophobic blocks comprise polydimethylsiloxane.2. The crosslinked block copolymer network of claim 1 , wherein the hydrophilic blocks and hydrophobic blocks comprises norbornene moieties.3. The crosslinked block copolymer network of claim 1 , wherein the hydrophilic blocks and hydrophobic blocks are crosslinked by a crosslinking agent comprising thiol moieties.4. The crosslinked block copolymer network of claim 1 , wherein the hydrophilic blocks comprising from about 10 to about 1 claim 1 ,000 units of ethylene oxide monomer.5. The crosslinked block copolymer network of claim 4 , wherein the hydrophilic blocks comprising from about 5 to about 500 units of dimethylsiloxanemonomer.6. A synthetic hydrogel claim 4 , prepared by thiol-norbornene crosslinking of hydrophilic poly(ethylene glycol) (PEG) and hydrophobic polydimethylsiloxane (PDMS) polymer chains claim 4 , where the hydrogel is characterized by high resilience.7. The synthetic hydrogel of claim 6 , characterized by a water content from about 50% to about 99%.8. The synthetic hydrogel of claim 6 , characterized by a mechanical energy storage efficiency of greater than 97% at strains up to 300%.11. An article of manufacture comprising a hydrogel comprising hydrophilic blocks of poly(ethylene glycol) and hydrophobic blocks of polydimethylsiloxane.12. The article of manufacture of claim 11 , wherein the ...

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Номер записи: 78
06-08-2015 дата публикации

FLUOROCARBON EMULSION STABILIZING SURFACTANTS

Номер: US20150217246A1
Автор: HOLTZE Christian, Hutchison John Brian, Weitz David A.
Принадлежит:

Surfactants (e.g., fluorosurfactants) for stabilizing aqueous or hydrocarbon droplets in a fluorophilic continuous phase are presented. In some embodiments, fluorosurfactants include a fluorophilic tail soluble in a fluorophilic (e.g., fluorocarbon) continuous phase, and a headgroup soluble in either an aqueous phase or a lipophilic (e.g., hydrocarbon) phase. The combination of a fluorophilic tail and a headgroup may be chosen so as to create a surfactant with a suitable geometry for forming stabilized reverse emulsion droplets having a disperse aqueous or lipophilic phase in a continuous, fluorophilic phase. In some embodiments, the headgroup is preferably non-ionic and can prevent or limit the adsorption of molecules at the interface between the surfactant and the discontinuous phase. This configuration can allow the droplet to serve, for example, as a reaction site for certain chemical and/or biological reactions. In another embodiment, aqueous droplets are stabilized in a fluorocarbon phase at least in part by the electrostatic attraction of two oppositely charged or polar components, one of which is at least partially soluble in the dispersed phase, the other at least partially soluble in the continuous phase. One component may provide colloidal stability of the emulsion, and the other may prevent the adsorption of biomolecules at the interface between a component and the discontinuous phase. Advantageously, surfactants and surfactant combinations of the invention may provide sufficient stabilization against coalescence of droplets, without interfering with processes that can be carried out inside the droplets. 1105-. (canceled)106. A surfactant , comprising a block copolymer including a perfluorinated polyether (PFPE) block coupled to a polyethylene glycol (PEG) block via an amide bond , and comprising a formula —(CFO)—(CF)—CONH— wherein n , m , x , and y are positive integers.107. The surfactant of claim 106 , wherein the surfactant comprises one block of ...

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Номер записи: 79
28-07-2016 дата публикации

Graft Engineering Thermoplastics With Polyolefins

Номер: US20160215102A1
Автор: Hagadorn John R., Tsou Andy H., YANG Yong
Принадлежит:

A graft copolymer comprising polyolefin and engineering thermoplastic components, wherein the thermoplastic component is a polymer comprising heteroatoms or heteroatom containing moieties in its backbone and phenyl or substituted phenyl groups, the polyolefin component covalently bound to the engineering thermoplastic component. The graft copolymer is the reaction product of an engineering thermoplastic having at least one phenylene in the polymer backbone, and a vinyl/vinylidene terminated polyolefin having a weight average molecular weight of at least 300 g/mole, wherein the vinyl/vinylidene terminated polyolefin is selected from polyethylenes, polypropylenes, ethylene-propylene copolymers, polyisobutylenes, polydienes, propylene-based elastomers, ethylene-based plastomers, and combinations thereof. 2. The graft copolymer of claim 1 , wherein the electron-donating substituents are selected from the group consisting of Cto Calkyls claim 1 , Cto Calkoxys claim 1 , Cto Cmercaptans claim 1 , chlorine claim 1 , bromine claim 1 , iodine claim 1 , hydroxyl claim 1 , and combinations thereof.3. The graft copolymer of claim 1 , wherein the A claim 1 , B claim 1 , C claim 1 , and D substituents are selected from the group consisting of Cto Ccarboxy-containing moieties claim 1 , Cto Cimido-containing moieties claim 1 , Cto Csulfido-containing moieties claim 1 , sulfur claim 1 , sulfide claim 1 , carboxy claim 1 , carboxylate claim 1 , imido claim 1 , nitrogen claim 1 , and combinations thereof.4. The graft copolymer of claim 1 , wherein the A claim 1 , B claim 1 , C claim 1 , and D substituents are selected from the group consisting of —CH—NH—CO—(CH)—CH— claim 1 , —OCOO— claim 1 , CO— claim 1 , pyromellitic diimidos claim 1 , —SO— claim 1 , sulfur claim 1 , oxygen claim 1 , nitrogen claim 1 , phosphorous claim 1 , and combinations thereof.5. The graft copolymer of claim 1 , wherein the ratio of the polyolefin component to the engineering thermoplastic component in the graft ...

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Номер записи: 80
27-07-2017 дата публикации

TIRE SKELETON AND TIRE

Номер: US20170210858A1
Автор: TARUTANI Yasunori
Принадлежит: BRIDGSTONE CORPORATION

A circular tire frame includes a resinous material including a polyamide-based thermoplastic elastomer. The polyamide-based thermoplastic elastomer is a copolymer formed by polymerization of at least a polymer (HS) forming a hard segment and a polymer (3SS) forming a soft segment and having three or more functional groups. 1. A circular tire frame comprising a resinous material including a polyamide-based thermoplastic elastomer , the polyamide-based thermoplastic elastomer being a copolymer formed by polymerization of at least a polymer (HS) forming a hard segment and a polymer (3SS) forming a soft segment and having three or more functional groups.2. The tire frame according to claim 1 , wherein the polyamide-based thermoplastic elastomer is a copolymer in which at least a polymer (2SS) forming a soft segment and having two functional groups is further polymerized claim 1 , and a proportion of the polymer (3SS) to a total amount of the polymer (3SS) and the polymer (2SS) is from 1% by mol to 30% by mol.3. The tire frame according to claim 1 , wherein the functional groups contained in the polymer (3SS) are amino groups.4. The tire frame according to claim 1 , wherein claim 1 , in the polyamide-based thermoplastic elastomer claim 1 , a ratio (Mw80/Mw20) of a molecular weight (Mw80) at a 80% cumulative weight to a molecular weight (Mw20) at a 20% cumulative weight is from 3 to 20.5. A tire comprising the tire frame according to .6. The tire frame according to claim 1 , wherein a content of the polyamide-based thermoplastic elastomer with respect to a total amount of the resinous material is 30% by mass or more.7. The tire frame according to claim 1 , wherein a mass ratio (HS/SS) of hard segment to soft segment is in a range of from 45/55 to 80/20.8. The tire frame according to claim 1 , wherein a weight average molecular weight of the polyamide-based thermoplastic elastomer is from 10 claim 1 ,000 to 700 claim 1 ,000.9. The tire frame according to claim 1 , wherein ...

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Номер записи: 81
04-07-2019 дата публикации

SUBSTITUTED POLYFLUORENE COMPOUNDS

Номер: US20190203052A1
Автор: Wang Jing, Xu Xinshe
Принадлежит: BioLegend

The present invention provides fluorescent polyfluorene polymers or macromers with unique optical properties that are stable. The polymeric fluorophores are useful in various bioassays formats. The inventive polymers are useful in assays relying on fluorescence resonance energy transfer (FRET) mechanisms where two fluorophores are used. 2. The macromer of claim 1 , wherein each of A claim 1 , B claim 1 , and C claim 1 , if present claim 1 , is a divalent substituent member selected from the group consisting of benzene claim 1 , naphthalene claim 1 , anthracene claim 1 , benzodiathiazolyl claim 1 , fluorene claim 1 , indenofluorene claim 1 , thiophene claim 1 , thienothiophene claim 1 , dithienothiophene claim 1 , 3 claim 1 ,4-ethylenedioxythiophene claim 1 , furan claim 1 , pyridine claim 1 , pyrrole claim 1 , fused pyrrole claim 1 , tetrahydropyrene and oxadiazole claim 1 , wherein each of the foregoing is optionally substituted with a water solubilizing group.3. The macromer of claim 1 , wherein two adjacent Rgroups on the same carbon form an optionally substituted 4- claim 1 , 5- claim 1 , or 6-membered ring selected from the group consisting of optionally substituted C-Ccycloalkyl group and an optionally substituted C-Cheterocyclyl group.4. The macromer of claim 3 , wherein two adjacent Rgroups on the same carbon form an optionally substituted C-cycloalkyl claim 3 , a C-cycloalkyl or a C-cycloalkyl group.5. The macromer of claim 4 , wherein the C-Ccycloalkyl group is substituted with at least one —(CH)—(OCHCH)OCHgroup claim 4 , wherein y is a value from 1-20 and x is a value from 1-50.6. The macromer of claim 4 , wherein the optionally substituted C-cycloalkyl group is a pyrrolidinyl group or a piperidinyl group.7. The macromer of claim 1 , wherein at least one of R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , and Ris a functional group for conjugation which is a member selected from the group of an amine claim 1 , a carbamate claim 1 , a carboxylic ...

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Номер записи: 82
09-10-2014 дата публикации

ANTIMICROBIAL AND BACTERIOSTATIC-MODIFIED POLYMERS FOR CELLULOSE FIBRES

Номер: US20140303322A1
Автор: Guan Yong, Xiao Huining
Принадлежит: UNIVERSITY OF NEW BRUNSWICK

Polysaccharide fibres, such as cellulose or starch, modified by grafting an amino-containing antimicrobial polymer (ACP) onto the fibres or starch using a co-polymerization reaction, exhibits high antimicrobial activity. For example, the presence of 1.0% by weight grafted polymer in the cellulose fibres or starch fibres results in excellent antimicrobial activity (over 99% inhibition). The application further discloses that including triclosan or butylparaben into a novel cationic β-cyclodextrin polymer or nanocapsule yields a bacteriostat. 1. A method of grafting an amino-containing polymer onto starch , producing modified starch suitable for use as an additive to paper products , the method comprising the steps of:(a) reacting the amino-containing polymer with glycidyl methacrylate to produce modified amino-containing polymer;(b) adding the modified amino-containing polymer and an initiator to a solution or suspension of starch;(c) adjusting the pH of the suspension or solution of starch;(d) adjusting the temperature of the suspension or solution of starch; and(e) stopping the reaction after sufficient time and isolating the modified starch.2. A method of grafting an amino-containing polymer onto starch according to wherein the sufficient time in step (e) is about 60 minutes.3. A method of grafting an amino-containing polymer onto starch according to claim 1 , wherein step (d) further comprises adjusting the temperature to a temperature in the range of about 30 to 40 degrees Celsius.4. A method of grafting an amino-containing polymer onto starch according to claim 1 , wherein step (c) further comprises adjusting the pH of the suspension or solution to a pH of about 6.5. A method of grafting an amino-containing polymer onto starch claim 1 , producing modified starch suitable for use as an additive to paper products claim 1 , the method comprising the steps of:(a) adjusting the pH of a water solution or suspension of starch in a flask;(b) dropwise adding a coupling ...

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Номер записи: 83
04-08-2016 дата публикации

SEMI-SOLID DELIVERY SYSTEMS

Номер: US20160220683A1
Автор: Wang Chun, Wang Wenshou
Принадлежит: Regents of the University of Minnesota

The invention provides semi-solid systems for delivering biologically active materials that include a polymer comprising 1) one or more polycaprolactone (PCL) units and 2) at least one or more polyethylene glycol (PEG) units; wherein at least one of said polycaprolactone units is conjugated to a PEG forming an acetal group. 1. A polymer comprising 1) one or more polycaprolactone (PCL) units and 2) at least one or more polyethylene glycol (PEG) units; wherein at least one of said polycaprolactone units is conjugated to a PEG forming an acetal group.3. The polymer of wherein each PCL is a homopolymer of caprolactone.8. The polymer of wherein R is (C-C)alkyl.912-. (canceled)13. The polymer of which has a molecular weight of at least about 2000.14. (canceled)15. The polymer of which has a molecular weight of at least about 10 claim 1 ,000.16. The polymer of which has a molecular weight of less than about 50 claim 1 ,000.1718-. (canceled)19. The polymer of which has a molecular weight of 15 claim 1 ,000±10 claim 1 ,000.2021-. (canceled)23. The polymer of comprising polyethyleneoxide having a molecular weight of of no more than about 2000.24. The polymer of comprising polyethyleneoxide having a molecular weight of no more than about 1000.25. A pharmaceutical composition comprising a polymer as described in and a biologically active agent.26. The composition of wherein the biologically active agent is selected from small molecular drugs claim 25 , large molecular drugs claim 25 , proteins claim 25 , antibodies claim 25 , peptides claim 25 , polysaccharides claim 25 , nucleic acids.27. The composition of wherein the biologically active agent is a tumor antigen or immunostimulatory adjuvant.28. The composition of wherein the biologically active agent is a tumor cell claim 25 , a tumor-associated peptide claim 25 , a tumor neoantigen from genetic mutation in somatic tumor cells claim 25 , an aberrantly glycolsylated tumor protein claim 25 , tumor cell membrane claim 25 , or ...

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Номер записи: 84
13-08-2015 дата публикации

POLYMER COMPOSITION

Номер: US20150225512A1
Автор: Nemoto Taichi, Tanaka Chiaki
Принадлежит:

To provide a polymer composition, which contains stereo complex crystals, and substantially no organic solvent, wherein an amount of ring-opening polymerizable monomer residues is 2 mol % or less. 1. A polymer composition , comprising:stereo complex crystals; andsubstantially no organic solvent,wherein an amount of ring-opening polymerizable monomer residues is 2 mol % or less.2. The polymer composition according to claim 1 ,wherein a stereo complex crystallization degree of the polymer composition is 90% or greater, and [{'br': None, 'i': S=[ΔHmsc', 'Hmh+ΔHmsc, '/(Δ)]×100,'}, 'where S is a stereo complex crystallization degree (%),', 'ΔHmsc is heat of melting (J/g) of the stereo complex crystals, and', 'ΔHmh is heat of melting (J/g) of homocrystals that do not contribute to formations of the stereo complex crystals., 'the stereo complex crystallization degree of the polymer composition is represented by the following formula3. The polymer composition according to claim 1 ,wherein the polymer composition has a yellow index value of 5 or less.4. The polymer composition according to claim 1 ,wherein the polymer composition has a weight average molecular weight of 12,000 or greater.5. The polymer composition according to claim 1 ,wherein the polymer composition comprises substantially no metal atom.6. The polymer composition according to claim 1 ,comprising:a first polymer obtained through ring-opening polymerization of a first ring-opening polymerizable monomer, anda second polymer obtained through ring-opening polymerization of a second ring-opening polymerizable monomer which is an optical isomer of the first ring-opening polymerizable monomer,wherein a total amount of residues of the first ring-opening polymerizable monomer and residues of the second ring-opening polymerizable monomer is 2 mol % or less.7. The polymer composition according to claim 6 ,wherein the first polymer comprises a carbonyl bond.8. The polymer composition according to claim 7 ,wherein the ...

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Номер записи: 85
03-08-2017 дата публикации

TIRE

Номер: US20170217251A1
Автор: Itoh Yuki
Принадлежит:

There is provided a tire including a tire frame that is formed of a resin material and has a circular form, wherein the resin material includes a thermoplastic elastomer having a hard segment (HS) and a soft segment (SS), in which only one unit of the soft segment (SS) is included in a single molecular chain, and both terminals of the single molecular chain are formed by the hard segment (HS), the thermoplastic elastomer having a number average molecular weight of from 12,000 to 24,000. 1. A tire comprising a tire frame that is formed of a resin material and has a circular form ,wherein the resin material comprises a thermoplastic elastomer having a hard segment (HS) and a soft segment (SS), in which only one unit of the soft segment (SS) is included in a single molecular chain, and both terminals of the single molecular chain are formed by the hard segment (HS), the thermoplastic elastomer having a number average molecular weight of from 12,000 to 24,000.2. The tire according to claim 1 , wherein a mass ratio (HS/SS) of the hard segment (HS) to the soft segment (SS) of the thermoplastic elastomer is from 20/80 to 50/50.3. The tire according to claim 1 , wherein the thermoplastic elastomer is at least one selected from the group consisting of a polyurethane-based thermoplastic elastomer and a polyamide-based thermoplastic elastomer.4. The tire according to claim 1 , wherein the thermoplastic elastomer is a polyamide-based thermoplastic elastomer.5. The tire according to claim 1 , wherein the thermoplastic elastomer is a polymer obtained by polymerizing two units of the hard segment (HS) claim 1 , each having one reactive functional group in a molecule claim 1 , and one unit of the soft segment (SS) having two reactive functional groups in a molecule.6. The tire according to claim 1 , wherein the thermoplastic elastomer has a number average molecular weight of from 15 claim 1 ,000 to 22 claim 1 ,000. The present invention relates to a tire that is mounted on a rim, ...

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Номер записи: 86
16-10-2014 дата публикации

SILANE TERMINATED POLYMER FOR COATING, ADHESIVES, SEALANT AND ELASTOMER APPLICATIONS

Номер: US20140309372A1
Автор: Koonce William A., Roser Jean-Luc, Vyakaranam Kamesh R., Zhang Ling
Принадлежит: Dow Global Technologies LLC

A copolymer-filled crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule is provided. The copolymer-filled crosslinkable silane-terminated polymer is the reaction product of a copolymer-filled polyol and an isocyanate capped hydrosilylated polymer. The isocyanate capped hydrosilylated polymer is the reaction product of at least one isocyanate and a hydrosilylated polymer. The hydrosilylated polymer is the reaction product of a polymer having at least one unsaturated group and at least one alcoholic group in each molecule and a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule. The copolymer-filled crosslinkable silane-terminated polymers exhibit improved modulus and tensile strength properties while maintaining elongation properties. 1. A composition comprising: a copolymer-filled polyol; and', at least one isocyanate; and', a polymer having at least one unsaturated group and at least one alcoholic group in each molecule; and', 'a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule., 'a hydrosilylated polymer comprising the reaction product of], 'an isocyanate capped hydrosilylated polymer comprising the reaction product of], 'a copolymer-filled crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule, wherein the copolymer-filled crosslinkable silane-terminated polymer is the reaction product of2. The composition of claim 1 , wherein the hydrosilylated polymer is reacted with the isocyanate at an isocyanate index of between about 100 and about 250.3. The composition of claim 1 , wherein the hydrosilylated polymer is a reaction product of a hyrdosilylation efficiency of at least about 70% as determined by H-NMR.4. The composition of claim 1 , wherein the polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule has a number average molecular weight of ...

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Номер записи: 87
04-08-2016 дата публикации

FUNCTIONAL CONDUCTING POLYMERS FOR REDOX MEDIATED SEPARATIONS OF F-ELEMENTS

Номер: US20160225471A1
Автор: Holliday Bradley J.
Принадлежит:

The present invention provides a redox mediated polymer composition for the selective sequestration and separation of multivalent metal ions comprising: 2 or more monomers polymerized to form a polymeric thiophene backbone, wherein each of the 2 or more monomers comprise 2 thiophene portion groups for polymerization and 2 pendant carbomylmethyl-phosphine oxide or diglycolamide groups that sequester selectively the multrivalent metal ions. 1. A redox mediated polymer composition for the selective sequestration and separation of multivalent metal ions comprising:2 or more monomers polymerized to form a polymeric thiophene backbone, wherein each of the 2 or more monomers comprise a thiophene portion and one or more pendant carbomylmethylphosphine oxide groups that sequester selectively the multivalent metal ions.2. The composition of claim 1 , further comprising one or more second monomers polymerized with the 2 or more monomers to form a polymeric thiophene backbone claim 1 , wherein the one or more second monomers comprise one or more pendant diglycolamide (DGA) groups.3. The composition of claim 1 , wherein the multivalent metal ions are selected from Am claim 1 , Cu claim 1 , Nd claim 1 , Smand Th.4. The composition of claim 1 , wherein the redox mediated polymer is disposed on a porous inert resin or silica support.5. The composition of claim 1 , wherein the redox mediated polymer is disposed on a removable electrode.6. The composition of claim 1 , wherein the polymeric thiophene backbone comprises one or more thiophene groups.7. The method of claim 1 , wherein the 2 or more monomers comprise 2 pendant carbomylmethylphosphine oxide groups.8. The method of claim 2 , wherein the one or more second monomers comprise 2 pendant diglycolamide (DGA) groups.9. The composition of claim 1 , wherein the multivalent metal ions is releasably held by the one or more pendant carbomylmethylphosphine oxide groups.10. A process for selective separating multivalent metal ions in the ...

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Номер записи: 88
02-07-2020 дата публикации

DIBLOCK COPOLYMER, A MANUFACTURING METHOD AND SUITED APPLICATIONS

Номер: US20200207921A1
Автор: CHOWDHURY Mohammad Suman, HAAG Rainer, Weitz David
Принадлежит:

It is provided a diblock copolymer consisting of a first block, a second block, and a linker, wherein the second block is covalently bound to the first block by the linker. Thereby, the first block is a glycerol block comprising 1 to 10 glycerol subunits that are optionally substituted, and the second block is a superhydrophobic block comprising a perfluoroether residue having at least 20 carbon atoms. 1. A diblock copolymer consisting of a first block , a second block , and a linker , wherein the second block is covalently bound to the first block by the linker , whereinthe first block is a glycerol block comprising 1 to 10 glycerol subunits that are optionally substituted, andthe second block is a superhydrophobic block comprising a perfluoroether residue having at least 20 carbon atoms.2. The diblock copolymer according to claim 1 , wherein the glycerol block comprises an optionally substituted oligoglycerol having 3 to 10 glycerol subunits.3. The diblock copolymer according to claim 2 , wherein the oligoglycerol is a branched oligoglycerol.5. The diblock copolymer according to claim 1 , wherein the superhydrophobic block comprises two carbon-containing chains that are bound to the same linker but are not covalently crosslinked to each other.7. The diblock copolymer according to claim 1 , wherein the linker is chosen from the group consisting of amines claim 1 , amides claim 1 , oxygen claim 1 , and an alkyl residue having 1 to 20 carbon atoms claim 1 , wherein a hydrocarbon chain of the alkyl residue can be interrupted by one or more oxygen claim 1 , nitrogen and/or sulfur atoms and/or can be substituted by a group comprising one or more oxygen claim 1 , nitrogen and/or sulfur atoms.8. The diblock copolymer according to claim 1 , wherein the linker is not a methylene group.9. A method for manufacturing a diblock copolymer according to claim 1 , comprising reacting an oligoglycerol amine comprising protected hydroxyl groups with a perfluorinated polyether acid ...

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Номер записи: 89
20-08-2015 дата публикации

CISPLATIN COMPLEX AND PREPARATION METHOD THEREOF

Номер: US20150231273A1
Автор: Chen Xuesi, Li Mingqiang, Song Wantong, Tang Zhaohui, Yu Haiyang, Zuang Xiuli
Принадлежит: CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCE

A CDDP complex is formed by complexation of CDDP and a polymer having a structure of Formula (I). The CDDP complex has good biocompatibility and is degradable. A side chain of the polymer is grafted with polyethylene glycol, which gives the CDDP complex good dissolvability. When dissolved in an aqueous medium, the CDDP is protected by a hydrophilic polyethylene glycol chain segment and a hydrophobic amino acid chain segment, which can effectively avoid a sudden release of the CDDP due to the influence of the blood circulation system after intravenous injection, thus improving the stability of the CDDP complex. A carboxyl group contained in the CDDP complex has pH value sensitivity and tends to be deprotonated in a low pH environment, which is advantageous for promoting the release of a drug, and improving the efficiency of the drug. 2. The CDDP complex according to claim 1 , wherein claim 1 , Ris independently selected from a hydrogen atom claim 1 , a C1 to C10 alkyl group or a substituted C1 to C10 alkyl group claim 1 , where the substituent for the substituted alkyl group is one or more selected from the group consisting of a ketal claim 1 , an acetal claim 1 , a hydroxyl group claim 1 , an aldehyde group claim 1 , an amino group claim 1 , a mercapto group claim 1 , and a glycosyl residue; and{'sup': '3', 'Ris independently selected from a hydrogen atom, a metal cation or an organic cation.'}3. The CDDP complex according to claim 2 , wherein claim 2 , Ris independently selected from a hydrogen atom claim 2 , a sodium ion claim 2 , a potassium ion claim 2 , a magnesium subgroup claim 2 , an ammonium ion or an amino acid ion.4. The CDDP complex according to claim 1 , wherein claim 1 , 30≦2x+y+z≦300 claim 1 , and 5%≦y/(2x+y+z)≦50%.5. The CDDP complex according to claim 1 , wherein claim 1 , Ris a C6 alkyl group claim 1 , Ris a methyl group claim 1 , Ris a hydrogen atom or a sodium ion claim 1 , and L is —CH—CH—.7. The method according to claim 6 , wherein claim 6 , ...

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Номер записи: 90
09-08-2018 дата публикации

METHOD OF FORMING AND USE OF A CROSSLINKED POLYMER

Номер: US20180223037A1
Автор: Bourcet Florence, Giguere Jean-Benoit
Принадлежит: Sumitomo Chemical Company Limited

A method of forming a crosslinked polymer and an anion, the method comprising the step of reacting a first polymeric substituent comprising a nucleophilic group and a second polymeric substituent comprising an electrophilic group wherein the first polymeric substituent is a substituent of a first polymer and the second polymeric substituent is a substituent of the first polymer or a second polymer. The first and second polymers may be non-conjugated or conjugated. The crosslinked polymers may be used in electrochemical devices, for example battery cells. 1. A method of forming a crosslinked polymer and an anion , the method comprising the step of reacting a first polymeric substituent comprising a nucleophilic group and a second polymeric substituent comprising an electrophilic group wherein the first polymeric substituent is a substituent of a first polymer and the second polymeric substituent is a substituent of the first polymer or a second polymer.2. The method according to wherein the first substituent is a substituent of the first polymer and the second substituent is a substituent of the second polymer.3. The method according to wherein the first substituent has formula (I):{'br': None, 'sup': '1', 'i': x', 'a, '-(Sp)-(Nu)\u2003\u2003 (I)'}{'sup': '1', 'wherein Spis a first spacer group; x is 0 or 1; Nu is the nucleophilic group; a is at least 1 if x is 1 and a is 1 if x is 0.'}4. The method according to wherein the nucleophilic group is a neutral nucleophilic group.5. The method according to wherein Nu is selected from the group consisting of —N(R) claim 4 , —P(R)—OH claim 4 , —SH and monocyclic or polycyclic heteroaromatic groups consisting of aromatic ring atoms selected from C and N atoms which are unsubstituted or substituted with one or more substituents claim 4 , wherein Rin each occurrence is independently H or a substituent.6. The method according to wherein the nucleophilic group is an anionic nucleophilic group.7. The method according to wherein ...

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Номер записи: 91
03-09-2015 дата публикации

Block Copolymers Based on Linear Poly(oxymethylene)(POM) and Hyperbranched Poly(glycerol): Combining Polyacetals with Polyethers

Номер: US20150247006A1
Автор: Frey Holger, Haubs Michael, Klein Rebecca, Kurz Klaus, Schüll Christoph
Принадлежит:

Synthesis of hyperbranched-linear-hyperbranched ABA triblock copolymers based on linear poly(oxy methylene) (POM) and hyperbranched poly(glycerol) (hbPG) blocks is described. The polymers having a polyacetal polyether structure were prepared from linear bishydroxy functional POM macroinititators, obtained by cationic ring-opening polymerization of trioxane and dioxane with formic acid as transfer agent and following hydrolysis of the formiate group. Partial deprotonation of the resulting hydroxyl groups permitted the hypergrafting by anionic ring-opening multibranching polymerization (ROMBP) of glycidol. 1. A polymer comprising a hyperbranched polyoxymethylene homopolymer or copolymer , the polyoxymethylene homopolymer or copolymer comprising a middle portion positioned between a first end portion and a second end portion , at least one of the end portions having a hyperbranched structure.2. A polymer as defined in claim 1 , wherein both end portions have a hyperbranched structure.3. A polymer as defined in claim 1 , wherein the middle portion comprises a linear structure having repeating oxymethylene units and optionally other oxyalkylene units.4. A polymer as defined in claim 1 , wherein the hyperbranched polyoxymethylene polymer comprises a triblock copolymer.5. A polymer as defined in claim 1 , wherein each hyperbranched portion includes at least 10 branches per molecule and generally less than about 500 branches per molecule.6. A polymer as defined in claim 1 , wherein each hyperbranched portion includes end units and wherein the end units comprise functional groups.7. A polymer as defined in claim 6 , wherein at least about 80% of the end units comprise the functional groups.8. A polymer as defined in claim 6 , wherein the functional groups comprise hydroxyl groups claim 6 , amino groups claim 6 , alkoxyl groups claim 6 , esters or amides.9. A polymer as defined in claim 1 , wherein the hyperbranched portions are aliphatic.10. A polymer as defined in claim 1 , ...

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Номер записи: 92
03-09-2015 дата публикации

CHELATING AMPHIPHILIC POLYMERS

Номер: US20150247008A1
Автор: Aussems-Custers Erica Maria Gerarda, DE VRIES ANKE, Gruell Holger, Langereis Sander, LUB JOHAN
Принадлежит:

Described are amphiphilic polymers that are provided with chelating moieties. The amphiphilic polymers are block copolymers comprising a hydrophilic block and a hydrophobic block, with the chelating moieties linked to the end-group of the hydrophilic block. The disclosed polymers are capable of self-assembly into structures such as micelles and polymersomes. With suitable metals present in the form of coordination complexes with the chelating moieties, the chelating amphiphilic polymers of the invention are suitable for use in various imaging techniques requiring metal labeling, such as MRI (T/Tweighted contrast agents or CEST contrast agents) SPECT, PET or Spectral CT. 1. A particle comprising a self-assembled structure , of a chelating amphiphilic polymer that is capable of self-assembly comprising a hydrophilic block and a hydrophobic block , wherein the hydrophilic block is provided with a chelating moiety selected from the group consisting of DOTA , DTPA , HYNIC , and desferoxamine as an end-group , the particle comprising a combination of the chelating amphiphilic polymer and a non-chelating amphiphilic polymer.2. The particle according to claim 1 , wherein the non-chelating amphiphilic polymer has a poly (oxy ethylene) chain as a hydrophilic block claim 1 , said chain being of greater length than the hydrophilic block of the chelating amphiphilic polymer.3. The particle according to claim 1 , further comprising a drug.4. A CEST MRI contrast agent comprising a polymersome in accordance with claim 1 , the polymersome having a wall formed by a bilayer of one or more amphiphilic polymers claim 1 , the bilayer comprising a chelating amphiphilic polymer claim 1 , wherein the wall encloses a cavity that comprises a pool of proton analytes capable of diffusion through the wall claim 1 , and wherein chelating moieties of the chelating amphiphilic polymers extending into the direction of the cavity are provided with a chelated paramagnetic material.5. The CEST MRI ...

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Номер записи: 93
06-11-2014 дата публикации

FORMALDEHYDE-FREE PROTEIN-CONTAINING BINDER COMPOSITIONS

Номер: US20140329936A1
Автор: Asrar Jawed, Miele Philip Francis, Zhang Mingfu
Принадлежит:

One-part thermosetting binder compositions are described that may include soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder. Also describe are fiber-containing products that include a plurality of fibers and a formaldehyde-free binder. The formaldehyde-free binder is formed from a one-part, thermosetting binder composition that includes soy protein, a first crosslinking compound, and a second crosslinking compound different from the first crosslinking compound. Upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder. 1. A one-part thermosetting binder composition comprising:soy protein;a first crosslinking compound; anda second crosslinking compound different from the first crosslinking compound,wherein upon curing, the first and second crosslinking compounds covalently bond to each other and to the soy protein to form a thermoset binder.2. The one-part thermosetting binder composition of claim 1 , wherein the first crosslinking compound is a carboxyl-containing compound.3. The one-part thermosetting binder composition of claim 2 , wherein the carboxyl-containing compound is a polycarboxy polymer.4. The one-part thermosetting binder composition of claim 2 , wherein the carboxyl-containing compound is derived from an ethylenically unsaturated carboxylic acid.5. The one-part thermosetting binder composition of claim 4 , wherein the ethylenically unsaturated carboxylic acid is chosen from acrylic acid claim 4 , methacrylic acid claim 4 , maleic acid claim 4 , fumaric acid claim 4 , methyl maleic acid claim 4 , itaconic acid claim 4 , and crotonic acid.6. The one-part thermosetting binder composition of claim 2 , wherein the carboxyl-containing compound is derived from an ...

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Номер записи: 94
23-08-2018 дата публикации

POLYMER-LIQUID COMPOSITES FOR IMPROVED ANTI-FOULING PERFORMANCE

Номер: US20180237643A1
Автор: GRAETZ Jason A., Gross Adam F., Nowak Andrew P., Rodriguez April R.
Принадлежит:

This disclosure describes incorporation of a liquid additive within one or more phases of a multiphase polymer coating. The structure of the microphase-separated network provides reservoirs for liquid in discrete and/or continuous phases. Some variations provide an anti-fouling segmented copolymer composition comprising: (a) one or more first soft segments selected from fluoropolymers; (b) one or more second soft segments selected from polyesters or polyethers; (c) one or more isocyanate species; (d) one or more polyol or polyamine chain extenders or crosslinkers; and (e) a liquid additive disposed in the first soft segments and/or the second soft segments. The first soft segments and the second soft segments are microphase-separated on a microphase-separation length scale from 0.1 microns to 500 microns. These solid/liquid hybrid materials improve physical properties associated with the coating in applications such as anti-fouling (e.g., anti-ice or anti-bug) surfaces, ion conduction, and corrosion resistance. 1. An anti-fouling segmented copolymer composition comprising:(a) one or more first soft segments selected from fluoropolymers having an average molecular weight from about 500 g/mol to about 20,000 g/mol, wherein said fluoropolymers are (α,ω)-hydroxyl-terminated, (α,ω)-amine-terminated, and/or (α,ω)-thiol-terminated;(b) one or more second soft segments selected from polyesters or polyethers, wherein said polyesters or polyethers are (α,ω)-hydroxyl-terminated, (α,ω)-amine-terminated, and/or (α,ω)-thiol-terminated;(c) one or more isocyanate species possessing an isocyanate functionality of 2 or greater, or a reacted form thereof;(d) one or more polyol or polyamine chain extenders or crosslinkers, or a reacted form thereof; and(e) a liquid additive disposed in said first soft segments and/or said second soft segments.2. The anti-fouling segmented copolymer composition of claim 1 , wherein said liquid additive is a freezing-point depressant for water.3. The anti ...

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Номер записи: 95
01-09-2016 дата публикации

COPOLYMER WITH POLYAMIDE BLOCKS AND A POLYETHER BLOCK

Номер: US20160251484A1
Автор: Malet Frederic
Принадлежит: Arkema France

The invention relates to a copolymer comprising at least two distinct polyamide blocks and at least one polyether block, and a method for preparation of said copolymer comprising the following steps:—in a first step, the polyamide block PA1 is prepared by polycondensation of chosen monomers: amino acids, lactames or diamines and dicarboxylic acids, in the presence of an appropriate chain limiter;—then, in a second optional step, the polyamide PA1 block obtained is reacted with all or part of the polyether PE blocks, in the presence or absence of a catalyst;—in a third step, the polyamide PA2 block is prepared by polycondensation of the chosen isomers: amino acids, lactams or diamines and dicarboxylic acids, in the presence of an appropriate chain limiter;—in a fourth optional step, the polyamide PA2 block obtained is reacted with all or part of the polyether PE blocks, in the presence or absence of a catalyst;—in a fifth step, PA1 or the reaction medium from step 2 is reacted with PA2 or the reaction medium from step 4 and with PE or the remainder of PE not added in step 2 or 4. 1. A copolymer comprising at least two polyamide blocks of different chemical structure and at least one polyether block.2. The copolymer as claimed in claim 1 , wherein an ester bond is present between each of the blocks.3. The copolymer as claimed in claim 1 , wherein the different polyamide blocks are obtained by polymerization of one or more units chosen from: 6 claim 1 , 11 claim 1 , 12 claim 1 , 4.6 claim 1 , 4.12 claim 1 , 4.14 claim 1 , 4.18 claim 1 , 6.6 claim 1 , 6.10 claim 1 , 6.12 claim 1 , 6.14 claim 1 , 6.18 claim 1 , Pip.10 claim 1 , 9.6 claim 1 , 9.12 claim 1 , 10.10 claim 1 , 10.12 claim 1 , 10.14 claim 1 , 10.18 claim 1 , 10.36 claim 1 , 10.T claim 1 , 6.T claim 1 , 9.T claim 1 , MXD.6 claim 1 , MXD.10 claim 1 , B.10 claim 1 , B.12 claim 1 , B.14 claim 1 , B.18 claim 1 , B.36 claim 1 , P.10 claim 1 , P.12 claim 1 , P.14 claim 1 , P.18 claim 1 , P.36 claim 1 , and mixtures ...

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Номер записи: 96
17-09-2015 дата публикации

Novel Block Copolymer, Micelle Preparation, And Anticancer Agent Containing The Same As Active Ingredient

Номер: US20150259479A1
Автор: Ishikawa Keizou, Nakanishi Takeshi, Shimizu Kazuhisa
Принадлежит:

A medicinal preparation is desired which has no harmful side effects such as hypersensitive reaction, heightens the water solubility of a sparingly water-soluble anticancer agent, maintains a high drug concentration in the blood, accumulates a drug in a tumor tissue at a high concentration, heightens the pharmacological effect of the sparingly water-soluble anticancer agent, and diminishes the side effects of the anticancer agent. Provided are: a novel block copolymer which can be a drug carrier having no harmful side effects such as hypersensitive reaction; a micelle preparation in which micelles are formed and which contains a sparingly water-soluble anticancer agent, especially paclitaxel, incorporated in the micelles in an amount necessary for a disease treatment without bonding it to the block copolymer and which can heighten the solubility of the drug in water; and an anticancer agent which comprises the micelle preparation as a medical ingredient, maintains a high concentration in the blood, has more potent drug activity, and is reduced in toxicity. 3. The method according to claim 1 , wherein R1 is a methyl group claim 1 , R2 is a trimethylene group claim 1 , R3 is a methylene group claim 1 , R4 is an acetyl group claim 1 , n is 20 to 500 claim 1 , m is 10 to 100 claim 1 , x is 0 to 100 claim 1 , and y is 0 to 100.4. The method according to claim 2 , wherein R1 is a methyl group claim 2 , R2 is a trimethylene group claim 2 , R3 is a methylene group claim 2 , R4 is an acetyl group claim 2 , n is 20 to 500 claim 2 , m is 10 to 100 claim 2 , x is 0 to 100 claim 2 , and y is 0 to 100.5. The method according to claim 1 , wherein the carbodiimide compound is diethyl carbodiimide claim 1 , diisopropyl carbodiimide claim 1 , dicyclohexyl carbodiimide or 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide or an inorganic salt thereof.6. The method according to claim 2 , wherein the carbodiimide compound is diethyl carbodiimide claim 2 , diisopropyl carbodiimide claim 2 , ...

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Номер записи: 97
24-09-2015 дата публикации

TONER, PROCESS CARTRIDGE, DEVELOPER, AND IMAGE FORMING APPARATUS

Номер: US20150268574A1
Автор: Asahina Daisuke, Miyaake Azumi, MIYAKOSHI Ryo, Sekiguchi Satoyuki, Yamashita Hiroshi
Принадлежит:

A toner including a polyester resin having an amorphous polyester segment is provided. The amorphous polyester segment includes a condensation polymerization product between a carboxylic acid and an alcohol. The carboxylic acid includes both aliphatic and aromatic dicarboxylic acids. The toner deforms with a deformation rate of from 1.0% to 5.0% under a pressure of 100 gf at 40° C. and 80% RH. In a binarized image of an AFM phase image of the toner, first phase-contrast images serving as large-phase-difference portions are dispersed in second phase-contrast images serving as small-phase-difference portions, and the first phase-contrast images have a dispersion diameter of 100 nm or less. An endothermic quantity Q1 obtained in a first heating of DSC is from 10 to 50 J/g, and a ratio of an endothermic quantity obtained in the second heating Q2 to that in first heating Q1 is 0.65 or less. 1. A toner , comprising: 'a polyester resin having an amorphous polyester segment, the amorphous polyester segment including a condensation polymerization product between a carboxylic acid and an alcohol, the carboxylic acid including an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid,', 'a binder resin, includingwherein when the toner is subjected to a pressure of 100 gf at a temperature of 40° C. and a relative humidity of 80%, the toner deforms with a deformation rate of from 1.0% to 5.0%,wherein when the toner is observed with an atomic force microscope in tapping mode to obtain a phase image and the phase image is binarized by using an intermediate value between maximum and minimum phase difference values to obtain a binarized image, the binarized image consists of first phase-contrast images serving as large-phase-difference portions and second phase-contrast images serving as small-phase-difference portions with the first phase-contrast images dispersed in the second phase-contrast images and the first phase-contrast images having a dispersion diameter of 100 nm ...

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Номер записи: 98
13-09-2018 дата публикации

ZWITTERION-FUNCTIONALIZED MULTICOMPONENT COPOLYMERS AND ASSOCIATED POLYMER BLENDS AND MEMBRANES

Номер: US20180258285A1
Автор: McCloskey Patrick, Misner Matthew Jeremiah, Moore David, Rainka Matthew, Zhou Hongyi
Принадлежит:

Multicomponent copolymers including two or more types of repeat units is presented. In one example, the multicomponent copolymer includes at least one repeat unit AC having a structure (I), at least one repeat unit DC having a structure (II), and at least one repeat unit BC having a structure (III) or (V). The multicomponent copolymer may be cross-linked via a cross-linking agent. A polymer blend including the multicomponent copolymer or a cross-linked copolymer and a second polymer is also provided. The multicomponent copolymer may be a random or a block copolymer. The structural units of the multicomponent copolymers provide improved, tunable properties, such as improved biocompatibility and hydrophilicity, protein fouling, and mechanical properties, to the copolymers and/or the membranes fabricated from the copolymers. 2. The copolymer of claim 1 , wherein the copolymer is a random copolymer comprising randomly distributed sequences of each of the at least one repeat unit AC claim 1 , BC and DC.3. The copolymer of claim 1 , wherein the copolymer is a block copolymer comprising two or more blocks claim 1 , each block having a plurality of same type of repeat units selected from the group consisting of repeat units AC claim 1 , BC and DC.4. The copolymer of claim 1 , wherein Z*S ranges from about 0.10 to about 0.6.5. The copolymer of claim 1 , wherein Z*S ranges from about 0.3 to about 0.5.6. The copolymer of claim 1 , wherein P*S ranges from about 0.01 to about 0.4.7. The copolymer of claim 1 , wherein P*S ranges from about 0.01 to about 0.15.8. The copolymer of claim 1 , wherein R ranges from about 0.4 to about 0.75.9. The copolymer of claim 1 , wherein R ranges from about 0.5 to about 0.6.10. The copolymer of claim 1 , wherein the weight average molecular weight (M) of the copolymer ranges from about 10 claim 1 ,000 g/mol to about 90 claim 1 ,000 g/mol.11. The copolymer of claim 1 , wherein the weight average molecular weight (M) of the copolymer ranges from ...

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Номер записи: 99
01-10-2015 дата публикации

LACTIDE COPOLYMER, AND RESIN COMPOSITION AND FILM COMPRISING SAME

Номер: US20150274898A1
Автор: Choi Seung Ho, PARK Seung Young, Sohn Jung Min, YOUK Kyung Seog
Принадлежит:

The present invention relates to a lactide copolymer exhibiting excellent flexibility and having more improved processability and productivity at the time of performing an extrusion and molding process, and a resin composition and film including the same, wherein the lactide copolymer includes a predetermined number of block copolymer repeating units in which hard segments of polylactide repeating units are bound to both ends of soft segments of polyether polyol repeating units, and has a weight-average molecular weight of 150,000 to 300,000, and a melt index y (MI; g/10 min) satisfying a specific relationship, the MI being measured under a load of 2.16 kg and at a temperature of x□ between 170□ and 210□. 2. The lactide copolymer of claim 1 , wherein it includes two or more of the block copolymer repeating units linked with each other via a urethane linking group.3. The lactide copolymer of claim 1 , wherein the melt index measured under a load of 2.16 kg and at a temperature of 170□ is 1.7 to 10.0.4. The lactide copolymer of claim 1 , wherein the melt index measured under a load of 2.16 kg and at a temperature of 180□ is 3.0 to 20.0.5. The lactide copolymer of claim 1 , wherein the melt index measured under a load of 2.16 kg and at a temperature of 190□ is 8.0 to 35.0.6. The lactide copolymer of claim 2 , wherein the block copolymer repeating units are linked with each other via the urethane linking group induced from a polyvalent isocyanate compound having more than 2 equivalents of an average isocyanate group per a molecule.7. The lactide copolymer of claim 6 , wherein the urethane linking group includes urethane bonds obtained by a reaction of a terminal hydroxy group derived from the polylactide repeating unit and the isocyanate group derived from the polyvalent isocyanate compound.8. The lactide copolymer of claim 6 , wherein the polyvalent isocyanate compound includes a mixture of a diisocyanate compound and a polyvalent isocyanate compound having 3 or more ...

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Номер записи: 100