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Небесная энциклопедия

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

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 6851. Отображено 100.
05-01-2012 дата публикации

Process for the polymerization of vinyl chloride

Номер: US20120004382A1
Автор: Nicholas M. Martyak
Принадлежит: Taminco BV

In a process for the aqueous suspension polymerization of vinyl chloride, alone or in mixture with other monomers, in the presence of at least one of dialkylperoxydicarbonate, peroxyester and diacyl peroxide, the polymerization composition according to the invention comprises at least one dialkylhydroxylamine as a shortstopping agent along with a totally or partially hindered phenolic antioxidant.

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Номер записи: 1
07-06-2012 дата публикации

Aqueous process for making fluoropolymers

Номер: US20120142858A1
Автор: Greylan Burch, Mehdi Durali, Patrick Kappler, Ramin Amin-Sanayei
Принадлежит: Arkema Inc

A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers contain blocks of polyethylene glycol, polypropylene glycol and/or polytetramethylene glycol. The process and fluoropolymer produced contain no fluorinated surfactant. The fluoropolymers have excellent resistance to discoloration.

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Номер записи: 2
21-06-2012 дата публикации

System and process for production of polyvinyl chloride

Номер: US20120156104A1
Автор: Abbas Hassan, Aziz Hassan, Ebrahim Bagherzadeh, Gregory Borsinger, Rayford G. Anthony
Принадлежит: HRD Corp

A system configured to produce polyvinyl chloride that includes a high shear mixing device comprising at least one rotor/stator set and configured to produce a polymerization mixture by high shear mixing a vinyl chloride solution with an initiator solution, wherein the polymerization mixture comprises an emulsion of droplets; a pump in fluid communication with an inlet of said high shear mixing device; and a vessel in fluid communication with an outlet of said high shear mixing device and configured for to maintain a predetermined pressure and temperature on the polymerization mixture, wherein the vessel comprises an outlet for a product comprising polyvinyl chloride and unconverted vinyl chloride and a vent gas outlet for at least one gas selected from the group consisting of gaseous vinyl chloride, volatile reaction products, and combinations thereof.

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Номер записи: 3
19-07-2012 дата публикации

Fluorinated compound, fluorinated polymer and fluorinated copolymer

Номер: US20120184695A1
Автор: Taiki Hoshino
Принадлежит: Asahi Glass Co Ltd

To provide a fluorinated compound having an R F group with at most 6 carbon atoms, whereby a fluorinated polymer having a highly durable water/oil repellency can be produced, and an environmental load is little, and a fluorinated polymer and a fluorinated copolymer having a highly durable water/oil repellency and presenting little environmental load, obtainable by polymerizing such a fluorinated compound. A fluorinated compound represented by the following formula (I) and its polymer: CH 2 ═C(M)COO(CH 2 ) n PhCOO(CH 2 ) m CF 2r+1   (I) (in the formula (I), M is a hydrogen atom, a methyl group or a halogen atom, n is an integer of from 0 to 2, Ph is a phenylene group, m is an integer of from 1 to 4, and r is an integer of from 1 to 6).

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Номер записи: 4
14-03-2013 дата публикации

MOLDED BODY FOR BIODIESEL FUEL

Номер: US20130066010A1
Автор: Hirao Takayuki, INABA TAKESHI, KOMORI Hirokazu, SAGISAKA Shigehito, SHIMONO Takeshi
Принадлежит: DAIKIN INDUSTRIES, LTD.

The present invention provides a molded article for a biodiesel fuel having excellent durability against a biodiesel fuel. The invention is a molded article for a biodiesel fuel of which the surface to be contacted with a biodiesel fuel is made of a fluorine-containing ethylenic resin. 14-. (canceled)5. A method of imparting corrosion resistance to a molded article which comes into contact with a biodiesel fuel , which method comprises providing a member constituting the molded article with a fluorine-containing ethylenic resin layer , the fluorine-containing ethylenic resin layer coming into contact with the biodiesel fuel.6. The method of imparting corrosion resistance to a molded article which comes into contact with a biodiesel fuel as claimed in claim 5 ,wherein the molded article comprises a fluorine-containing ethylenic resin layer provided on a metal member.7. The method of imparting corrosion resistance to a molded article which comes into contact with a biodiesel fuel as claimed in claim 5 ,wherein the molded article comprises a laminate comprising a fluorine-containing ethylenic resin layer and a fluorine-free organic material layer, provided on a metal member.8. The method of imparting corrosion resistance to a molded article which comes into contact with a biodiesel fuel as claimed in claim 5 ,wherein the molded article comprises a laminate comprising a fluorine-containing ethylenic resin layer and a fluorine-free organic material layer. This is a Continuation of U.S. application Ser. No. 12/934,550 filed Sep. 24, 2010 which is a 371 of PCT International Application No. PCT/JP2009/056141 filed Mar. 26, 2009, and which claims benefit to Japanese Patent Application No. 2008-084361 filed Mar. 27, 2008. The above-noted applications are incorporated herein by reference in their entirety.The present invention relates to a molded article for a biodiesel fuel.Biodiesel fuels have attracted attention in recent years as a measure against global warming. Biodiesel ...

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Номер записи: 5
11-04-2013 дата публикации

Polymerization Of 2,3,3,3-Tetrafluoropropene And Polymers Formed From 2,3,3,3-Tetrafluoropropene

Номер: US20130090439A1
Автор: Andrew J. Poss, Changqing Lu, Cheryl Cantlon, David Nalewajek, Rajiv R. Singh
Принадлежит: Honeywell International Inc

The present invention relates to methods of producing polymerized 2,3,3,3-tetrafluoropropene (poly-1234yf) using one or a combination of the techniques provided herein. In certain embodiments, such techniques include (1) emulsion polymerization; (2) suspension polymerization; (3) solution polymerization; (4) supercritical carbon dioxide polymerization; (5) transition metal catalyzed polymerization; (6) radiation or thermal polymerization; and combinations thereof. A wide array of initiators, catalysts, and solvents may be used in such polymerization processes and may include, but are not limited to, (1) radical initiators; (2) ionic initiators; and (3) single-site and multiple-site catalysts.

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Номер записи: 6
02-05-2013 дата публикации

Fluoroelastomer composition

Номер: US20130109797A1
Автор: Giuseppe Marchionni, Marco Apostolo, Marco Avataneo, Matteo Fantoni
Принадлежит: Solvay Specialty Polymers Italy SpA

The invention pertains to a (per)fluoroelastomer composition comprising: at least one (per)fluoroelastomer [fluoroelastomer (A)]; and from 0.1 to 30 weight parts, per hundred parts of fluoroelastomer (A), of at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain R t ), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain R a ) comprising recurring units of formula: —(CR 1 R 2 —CR 3 R 4 )— wherein R 1 , R 2 , R 3 , R 4 , equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C 1 -C 6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

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Номер записи: 7
16-05-2013 дата публикации

PROCESS FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER

Номер: US20130122302A1
Автор: MIYAMOTO Masayoshi, Sawada Yasuhiko, Yamanaka Taku
Принадлежит: DAIKIN INDUSTRIES, LTD.

A process for producing a polytetrafluoroethylene fine powder including: (1) a step of preparing an aqueous dispersion containing polytetrafluoroethylene, water and a surfactant (A); (2) a step of initiating coagulation of the polytetrafluoroethylene in said aqueous dispersion by agitating said aqueous dispersion; (3) a step of adding a surfactant (B) after the step (2); (4) a step of terminating coagulation after the step (3); (5) a step of collecting a wet powder of the polytetrafluoroethylene; and (6) a step of drying the wet powder of the polytetrafluoroethylene. 1. A process for producing a polytetrafluoroethylene fine powder ,the process comprising:(1) a step of preparing an aqueous dispersion containing polytetrafluoroethylene, water and a surfactant (A);(2) a step of initiating coagulation of the polytetrafluoroethylene in said aqueous dispersion by agitating said aqueous dispersion;(3) a step of adding a surfactant (B) after the step (2);(4) a step of terminating coagulation after the step (3);(5) a step of collecting a wet powder of the polytetrafluoroethylene; and(6) a step of drying the wet powder of the polytetrafluoroethylene.2. The process according to claim 1 , wherein the surfactant (B) is a nonionic surfactant.3. The process according to claim 1 , wherein claim 1 , in the step (3) claim 1 , 1 ppm to 10% by mass of the surfactant (B) is added to the polymer in the aqueous dispersion.4. A polytetrafluoroethylene fine powder obtained by the process according to .5. A polytetrafluoroethylene fine powder consisting of a TFE homopolymer claim 1 , wherein a standard specific gravity is 2.160 to 2.230; average particle size is 300 to 800 μm; apparent density is 0.40 to 0.52 g/ml; compression ratio is 1.20 or less; and aggregate disintegration degree with 50-sec vibration is 60% or more.6. A polytetrafluoroethylene fine powder consisting of a TFE homopolymer claim 1 , wherein a standard specific gravity is 2.130 to 2.160 claim 1 , average particle size is ...

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Номер записи: 8
16-05-2013 дата публикации

Fluorinated compound, fluorinated polymer and fluorinated copolymer

Номер: US20130123447A1
Автор: Taiki Hoshino
Принадлежит: Asahi Glass Co Ltd

To provide a fluorinated compound having an R F group with at most 6 carbon atoms, whereby a fluorinated polymer having a highly durable water/oil repellency can be produced, and an environmental load is little, and a fluorinated polymer and a fluorinated copolymer having a highly durable water/oil repellency and presenting little environmental load, obtainable by polymerizing such a fluorinated compound. A fluorinated compound represented by the following formula (I) and its polymer: CH 2 ═C(M)COO(CH 2 ) n PhCOO(CH 2 ) m C r F 2r+1   (I) (in the formula (I), M is a hydrogen atom, a methyl group or a halogen atom, n is an integer of from 0 to 2, Ph is a phenylene group, m is an integer of from 1 to 4, and r is an integer of from 1 to 6).

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Номер записи: 9
23-05-2013 дата публикации

PEROXIDE CURABLE FLUOROELASTOMERS CONTAINING MODIFIERS AND IODINE OR BROMINE ENDGROUPS

Номер: US20130129954A1
Автор: Hintzer Klaus, Jürgens Michael, Kaspar Harald, Lochhaas Kai Helmut, Verschuere Alain
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Provided are curable fluoroelastomers. Further provided are methods of making the curable elastomers, curable fluoroelastomer compositions and methods of making them and shaped articles made from the curable fluoroelastomer compositions. 1. A curable fluoroelastomer comprising repeating units derived from a fluorinated olefin selected fromtetrafluoroethene (TFE) and 1,1-difluorethene (vinylidenfluoride, VDF),TFE and hexafluoropropene (HFP),VDF and HFP and TFE orVDF and HFP,and having at least one halogen atom selected from iodine and bromine at a terminal carbon atom of the backbone chain and further comprising units derived from one or more modifiers selected from perfluorinated bis olefinic ethers.2. The curable fluoroelastomer according to comprising from at least 20% by mole or at least 30% by mole of units derived from VDF or HFP.3. The curable fluoroelastomer according to comprising up to 10% by weight or up to 1% by weight of units derived from one or more modifiers.4. The curable fluoroelastomer according to wherein the modifiers correspond to the general formula{'br': None, 'sub': 2', '2', 'n', '2', 'm', '2, 'CF═CF—(CF)—O—(Rf)—O—(CF)—CF═CF'}wherein n and m are independent from each other either 1 or 0 and wherein Rf represents a perfluorinated linear or branched, cyclic or acyclic aliphatic or aromatic hydrocarbon residue that may be interrupted by one or more oxygen atoms and comprising up to 30 carbon atoms.5. The curable fluoroelastomer according to wherein the modifiers correspond to the general formula{'br': None, 'sub': 2', '2', 'n', '2', 'm', '2, 'CF═CF—(CF)—O—(Rf)—O—(CF)—CF═CF'}wherein n and m are independent from each other either 1 or 0 and wherein Rf represents a perfluorinated linear or branched acyclic aliphatic hydrocarbon residue that may be interrupted by one or more oxygen atoms and comprising up to 30 carbon atoms.6. The curable fluoroelastomer according to wherein the modifiers correspond to the general formula{'br': None, 'sub': 2', '2', ...

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Номер записи: 10
23-05-2013 дата публикации

PHOTOCROSSLINKABLE FLUOROPOLYMERS, UV PROCESSES AND PHOTOCROSSLINKED POLYMERS

Номер: US20130131213A1
Автор: FRENCH ROGER HARQUAIL, Wheland Robert Clayton
Принадлежит: E I DuPont De Nemours and Company

This invention relates to certain photocrosslinkable fluoropolymers, processes for crosslinking the fluoropolymers using UV radiation, and the photocrosslinked fluoropolymers produced. 1. A process comprising: [{'sub': 2', 'x', '2x', 'w', 'y', '2y', 'z, 'i) monomer A of formula CF═CF(OCF)(OCF)R,'}, 'wherein', 'w=1-3;', 'x=1-10;', 'y=1-10;', 'z=0-4; and', {'sub': 2', '1', '4, 'sup': 1', '1, 'R═CN or COR, where R═C-Calkyl; and'}, 'ii) monomer B selected from the group consisting of ethylene, propene, butenes, vinyl ethers, cyclo-olefins, and substituted derivatives thereof, wherein the substituent is selected from the group consisting of halogens, ether groups, and cyano groups; and', 'iii) a free radical initiator; and, 'a) providing a reaction mixture comprisingb) copolymerizing monomer A and monomer B to form a photocrosslinkable copolymer;c) isolating the photocrosslinkable copolymer; andd) exposing the photocrosslinkable copolymer to UV radiation to form a photocrosslinked copolymer.2. The process of claim 1 , wherein the free radical initiator is selected from the group consisting of acyl peroxides claim 1 , diacyl peroxides claim 1 , peroxides claim 1 , azo compounds claim 1 , perfluoroacyl peroxides claim 1 , ammonium persulfate claim 1 , potassium persulfate claim 1 , disuccinic acid peroxide claim 1 , potassium permanganate and sulfite/persulfate systems.3. The process of claim 2 , wherein the free radical initiator is CFCFCFOCF(CF)(C═O)OO(C═O)CF(CF)OCFCFCF.4. The process of claim 1 , wherein monomer A is selected from the group consisting of EVE claim 1 , 8-CNVE and CF═CFO(CF)CN.5. The process of claim 1 , wherein monomer B is selected from the group consisting of E claim 1 , TFE claim 1 , VF claim 1 , VF2 claim 1 , PDD claim 1 , PPVE claim 1 , PMVE claim 1 , PEVE claim 1 , HFP claim 1 , CTFE claim 1 , 3FE claim 1 , and EVEOCN.6. A photocrosslinked copolymer produced by the process of .7. The photocrosslinked copolymer of claim 6 , wherein monomer A is ...

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Номер записи: 11
23-05-2013 дата публикации

Novel compound, method for producing the same and method for producing fluoropolymer

Номер: US20130131267A1
Автор: Akinari Sugiyama, Nobuhiko Tsuda
Принадлежит: Daikin Industries Ltd

The invention provides a compound which is useful in production of a fluoropolymer and easy to be removed from the produced fluoropolymer, a method of producing the compound, and a method of producing a fluoropolymer using the compound. The invention provides a compound which is represented by Rf 1 —CH 2 O—CF 2 —CHF—Rf 2 —X, wherein Rf 1 represents a fluoroalkyl group containing 1 to 5 carbon atoms, Rf 2 represents a fluoroalkylene group containing 1 to 3 carbon atoms, X represents —COOM or —SO 3 M, and M represents one of H, K, Na, and NH 4 .

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Номер записи: 12
13-06-2013 дата публикации

PROCESS FOR PREPARING NOVEL COPOLYMERS WITH A FLUOROPOLYMER BACKBONE COMPRISING POLYOXYALKYLENE PENDANT CHAINS

Номер: US20130150544A1
Автор: Ameduri Bruno, Galiano Herve, Vergnaud Jérôme
Принадлежит: Centre National De La Recherche Scientifique

The invention relates to novel copolymers and to an associated preparation method, comprising recurrent units bearing a pendant chain of the polyoxyalkylene type. 115.-. (canceled)17. The method according to claim 16 , wherein at least two of the groups Rto Rrepresent fluorine atoms.18. The method according to claim 16 , wherein Rand Rrepresent a hydrogen atom and Rand Rrepresent a fluorine atom.19. The method according to claim 16 , wherein W is a polyoxyethylene group.20. The method according to claim 16 , wherein Rrepresents a perfluoroalkyl group and Rrepresents an alkyl group.21. The method according to claim 20 , wherein Rrepresents a group —CF.22. The method according to claim 16 , wherein Rand Rrepresent a hydrogen atom.24. The copolymer according to claim 23 , wherein at least two of the groups Rto Rrepresent fluorine atoms.25. The copolymer according to claim 23 , wherein Rand Rrepresent a hydrogen atom and Rand Rrepresent a fluorine atom.26. The copolymer according to claim 23 , wherein W is a polyoxyethylene group.27. The copolymer according to claim 23 , wherein Rrepresents a perfluoroalkyl group and Rrepresents an alkyl group.28. The copolymer according to claim 27 , wherein Rrepresents a group —CF.29. The copolymer according to claim 23 , wherein Rand Rrepresent a hydrogen atom. The present invention relates to a method for preparing a copolymer comprising at least two recurrent unit types: a recurrent unit stemming from the polymerization of at least one monomer comprising one or more fluorine atoms and a recurrent unit stemming from the polymerization of at least one specific monomer comprising a polyoxyalkylene type pendant chain, to the copolymers which may be obtained by this method, to the specific monomers entering the application of this method and to a method for preparing said monomers.The relevant copolymers because of the coexistence of these two types of recurrent units give the possibility of accessing a synergy of properties, whether ...

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Номер записи: 13
04-07-2013 дата публикации

FLUORINE-CONTAINING COPOLYMER

Номер: US20130172502A1
Автор: Kaneumi Yoshiyama
Принадлежит: UNIMATEC CO., LTD.

Disclosed is a fluorine-containing copolymer comprising a copolymer of a polyfluoroalkyl alcohol(meth)acrylic acid derivative represented by the general formula: 2. The fluorine-containing copolymer according to claim 1 , which has a weight-average molecular weight (Mw) of 10 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.3. The fluorine-containing copolymer according to claim 1 , wherein the polyfluoroalkyl alcohol(meth)acrylic acid derivative [I] and the polysiloxane containing a terminal (meth)acryloyloxy group [II] are copolymerized in a weight ratio of 1 to 99:99 to 1.4. The fluorine-containing copolymer according to claim 1 , wherein the polyfluoroalkyl alcohol(meth)acrylic acid derivative [I] and the polysiloxane containing a terminal (meth)acryloyloxy group [II] are copolymerized in a weight ratio of 30 to 95:70 to 5.6. The fluorine-containing copolymer according to claim 5 , wherein at least one of the acrylic acid esters [III] claim 5 , [IV] claim 5 , and [V] is copolymerized in a ratio of 30 wt. % or less in the copolymer.7. The fluorine-containing copolymer according to claim 6 , wherein at least one of the acrylic acid esters [III] claim 6 , [IV] claim 6 , and [V] is copolymerized in a ratio of 10 to 30 wt. % in the copolymer.9. The fluorine-containing copolymer according to claim 8 , wherein the fluorine-containing polymerizable monomer [VI] is copolymerized in a ratio of 30 wt. % or less in the copolymer.10. The fluorine-containing copolymer according to claim 9 , wherein the fluorine-containing polymerizable monomer [VI] is copolymerized in a ratio of 10 to 30 wt. % in the copolymer.11. The fluorine-containing copolymer according to claim 1 , which is used as an active ingredient of a water- and oil-repellent.12. The fluorine-containing copolymer according to claim 1 , which is used as a surface-treatment agent for powder.13. A surface-treated powder claim 12 , which is treated a powder with the fluorine-containing copolymer according to .14. The ...

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Номер записи: 14
11-07-2013 дата публикации

Composite polymerization initiator and polymer brush composite obtained therefrom

Номер: US20130178588A1
Автор: Avataneo Marco, Denisov Evgeny, Kent Bradley Lane, Lin Shiow-Ching, Marchionni Giuseppe, Spada Fabrizio
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY, S.P.A.

Composite polymerization initators are disclosed suitable to prepare polymer brush composites. 1. A composite polymerization initiator comprising groups of formula (1) covalently anchored to the surface of a solid substrate:{'br': None, 'sub': n', '2', 'B1', '2, '-(L)-CR—B(R)\u2003\u2003(1)'}{'sub': 1', '15', 'B1', '1', '20', '5', '10', 'B1', 'B1', '2, 'wherein L is a linker group, n is equal to 0 or 1; each R is independently selected from the group consisting of hydrogen, C-Clinear or branched alkyl group, optionally comprising heteroatoms; and wherein each Ris independently selected from the group consisting of hydrogen, C-Clinear, branched or cyclic alkyl group, C-Caromatic group, optionally fluorinated; each group Rmay be comprised in an, optionally substituted, aliphatic or aromatic cyclic structure; and wherein said —B(R)may be an aliphatic bicyclic borane radical wherein both boron-carbon bonds are part of a cyclic structure.'}2. A method for the preparation of the composite initiator of comprising the steps of: (a) providing a solid substrate comprising surface reactive groups GSR; said{'sub': 2', 'B1', '2', '2', 'B1', '2', 'B1', '2', 'B2', 'B1', 'B2', '1', '5, 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(b) reacting the solid substrate with a compound comprising one functional group X capable of forming a covalent bond with the substrate surface by reaction with the surface reactive groups GSR, and at least one functional group either comprising a moiety of formula —CR—B(R)or capable of forming a moiety —CR—B(R)by reaction with an organoborane of formula B(R)R, wherein R and Rare as defined in and Ris selected from the group consisting of hydrogen, halogen, said C-Clinear or branched alkyl.'}3. The method according to comprising the step of reacting the solid substrate with a linker compound of formula X-(L′)-Ycomprising one functional group [X] capable of forming a covalent bond with the substrate surface by reaction with the surface reactive groups ...

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Номер записи: 15
11-07-2013 дата публикации

MELT-FLOWABLE FLUOROPOLYMER COMPRISING REPEATING UNITS ARISING FROM TETRAFLUOROETHYLENE AND A HYDROCARBON MONOMER HAVING A FUNCTIONAL GROUP AND A POLYMERIZABLE CARBON-CARBON DOUBLE BOND

Номер: US20130178593A1
Автор: Aten Ralph Munson, Libert Sharon Ann
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

Disclosed is a melt-flowable fluoropolymer comprising repeating units arising from (a) tetrafluoroethylene and (b) a monomer having at least one functional group and a polymerizable carbon-carbon double bond, wherein the sum of the weight percent of (a) and (b) comprises at least about 99 weight percent of all repeating units comprising the melt-flowable fluoropolymer. 1. A melt-flowable fluoropolymer comprising repeating units arising from:(a) tetrafluoroethylene; and(b) a hydrocarbon monomer having at least one functional group and a polymerizable carbon-carbon double bond; wherein the sum of the weight percent of said (a) and said (b) comprises at least about 99 weight percent of all repeating units comprising said melt-flowable fluoropolymer, and wherein the amount of said repeating units arising from said (b) is about 0.001 to about 1 weight percent.2. The melt-flowable fluoropolymer of claim 1 , wherein said at least one functional group is at least one selected from the group consisting of amine claim 1 , amide claim 1 , carboxyl claim 1 , hydroxyl claim 1 , phosphonate claim 1 , sulfonate claim 1 , nitrile claim 1 , boronate and epoxide.3. The melt-flowable fluoropolymer of claim 1 , wherein said at least one functional group is a dicarboxylic acid anhydride.4. The melt-flowable fluoropolymer of claim 1 , wherein said at least one functional group is a dicarboxylic acid.5. The melt-flowable fluoropolymer of claim 1 , further comprising about 1 weight percent or less of repeating units arising from a fluoromonomer other than tetrafluoroethylene.6. The melt-flowable fluoropolymer of claim 5 , wherein said fluoromonomer other than tetrafluoroethylene is at least one selected from the group consisting of chlorotrifluoroethylene claim 5 , hexafluoropropylene claim 5 , perfluoro-2 claim 5 ,2-dimethyl-1 claim 5 ,3-dioxole claim 5 , perfluoro-2-methylene-4-methyl-1 claim 5 ,3-dioxolane claim 5 , perfluoro(methyl vinyl ether) claim 5 , perfluoro(ethyl vinyl ether) ...

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Номер записи: 16
25-07-2013 дата публикации

CURABLE COMPOSITION, MOLDED ARTICLE AND METHOD FOR PRODUCING MOLDED ARTICLE

Номер: US20130190456A1
Автор: HIRANO Seiichi
Принадлежит: DAIKIN INDUSTRIES, LTD.

The present invention aims to provide a curable composition excellent in storage stability and scorch resistance. The present invention provides a curable composition including a fluoroelastomer (A) that contains a cyano group in a main chain and/or a side chain thereof, and a compound (B) that is at least one compound selected from the group consisting of an amide compound and a hydrazide compound, the compound (B) having at least one structure selected from the group consisting of azo structure, hydrazine structure, and imine structure, and producing NHwhen decomposed. 1. A curable composition comprisinga fluoroelastomer (A) that contains a cyano group in a main chain and/or a side chain thereof, anda compound (B) that is at least one compound selected from the group consisting of an amide compound and a hydrazide compound,{'sub': '3', 'the compound (B) having at least one structure selected from the group consisting of azo structure, hydrazine structure, and imine structure, and producing NHwhen decomposed.'}2. The curable composition according to claim 1 ,wherein the compound (B) has a decomposition temperature of 180° C. to 300° C.3. The curable composition according to claim 1 ,wherein the curable composition contains 0.1 to 20 parts by weight of the compound (B) for each 100 parts by weight of the fluoroelastomer (A).5. A molded product produced by cross-linking the curable composition according to .6. A method for producing a molded product claim 1 , comprising the steps of{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'primarily vulcanizing the curable composition according to , and'}secondary vulcanizing the primarily vulcanized curable composition.7. The method for producing a molded product according to claim 6 ,wherein the primary vulcanization is performed at a temperature of 140° C. to 230° C., and the secondary vulcanization is performed at a temperature of 200° C. to 320° C. This application claims benefit under 35 U.S.C. §119(e) of U.S. ...

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Номер записи: 17
08-08-2013 дата публикации

Pharmaceutical Elastomeric Articles

Номер: US20130203865A1
Автор: "DCruz Bernard", Sharma Bharat B., Wong Wai K.
Принадлежит:

Elastomeric polymers and compounded elastomers having reduced amounts of leachables and improved resistance to γ-irradiation sterilization suitable for pharmaceutical stopper and seal applications. These polymers and compounded elastomers maintain their physical performances upon being exposed to γ-irradiation over time and typical use conditions. The polymer is prepared by reacting a mixture of i) a Cto Cisoolefin monomer, ii) a styrene based monomer, and optionally iii) a Cto Cmultiolefin monomer wherein the polymer contains 5 to 15 wt % of styrene derived units. 1. A method of producing elastomeric pharmaceutical articles , the method comprising the steps of:{'sub': 4', '7', '4', '14, 'a) preparing an elastomeric compound comprising a polymer prepared by reacting a mixture of i) a Cto Cisoolefin monomer, ii) a styrene based monomer, and optionally iii) a Cto Cmultiolefin monomer wherein the polymer contains 5 to 15 wt % of styrene derived units,'}b) subjecting the elastomeric compound to gamma irradiation; andc) forming an article with the compound.2. The method of producing the elastomeric pharmaceutical article of claim 1 , wherein after subjecting the elastomeric compound to gamma irradiation claim 1 , tensile strength of the compound is changed by not more than twenty percent of the tensile strength of the compound prior to the gamma irradiation.3. The method of producing the elastomeric pharmaceutical article of claim 1 , wherein after subjecting the elastomeric compound to gamma irradiation claim 1 , the 100% modulus of the compound is changed by not more than twenty percent of the 100% modulus of the compound prior to the gamma irradiation.4. The method of producing the elastomeric pharmaceutical article of claim 1 , wherein the elastomeric compound is further comprised of a cure package and at least one filler.5. The method of producing the elastomeric pharmaceutical article of claim 1 , wherein the elastomeric compound is subjected to 25 to 40 KGray of ...

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Номер записи: 18
08-08-2013 дата публикации

METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER

Номер: US20130203950A1
Автор: IIDA Mayumi, Imahori Yuji, Imoto Katsuhiko
Принадлежит: DAIKIN INDUSTRIES, LTD.

Provided is a method for producing a fluoropolymer in the presence of a specific non-fluorinated compound having surface activity. The method shows a high polymerization rate, and suppresses formation of sticking polymerization materials after production of a polymer product. The method includes aqueous dispersion polymerization of a fluoroolefin in the presence of a compound (1) represented by formula (1): 2. The method for producing a fluoropolymer according to claim 1 ,{'sup': 1', '2, 'wherein in the above formula (1), Rand Rare the same as each other, and represent a C4 to C12 non-fluorinated alkyl group.'}3. The method for producing a fluoropolymer according to claim 1 ,wherein the compound (1) is sodium dioctyl sulfosuccinate or sodium didecyl sulfosuccinate.4. The method for producing a fluoropolymer according to claim 1 ,wherein the aqueous dispersion polymerization of a fluoroolefin is carried out together with a non-fluorinated vinyl monomer and a non-fluorinated monomer having a crosslinkable group.5. The method for producing a fluoropolymer according to claim 1 ,wherein the fluoroolefin is at least one selected from the group consisting of vinyl fluoride, vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, and 2,3,3,3-tetrafluoropropene.6. The method for producing a fluoropolymer according to claim 1 ,wherein the fluoroolefin is at least one selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, and 2,3,3,3-tetrafluoropropene.7. The method for producing a fluoropolymer according to claim 4 ,wherein the non-fluorinated vinyl monomer is at least one selected from the group consisting of olefins, vinyl ethers, and vinyl esters.8. The method for producing a fluoropolymer according to claim 4 ,wherein the non-fluorinated monomer having a crosslinkable group is a hydroxy group-containing vinyl monomer or an unsaturated carboxylic acid.9. The method for producing a ...

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Номер записи: 19
15-08-2013 дата публикации

Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Produdcts Obtained Therefrom and Reaction of the Expanded Products

Номер: US20130210944A1
Автор: Jack J. Hegenbarth, Ping Xu, Xin Kang Chen
Принадлежит: WL Gore and Associates Inc

A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.

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Номер записи: 20
29-08-2013 дата публикации

PREPARATION OF POLYMER, RESULTING POLYMER, RESIST COMPOSITION, AND PATTERNING PROCESS

Номер: US20130224660A1
Автор: KOBAYASHI Tomohiro, OHASHI Masaki, Sagehashi Masayoshi
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A sulfonic acid anion-containing polymer having a triarylsulfonium cation is prepared by (1) preparing a sulfonic acid anion-containing polymer having an ammonium or metal cation not bound thereto, (2) purifying the polymer by water washing or crystallization, and (3) then reacting the polymer with a triarylsulfonium salt. A resist composition comprising the inventive polymer is effective for controlling acid diffusion since the sulfonium salt is bound to the polymer backbone. 1. A method of preparing a sulfonic acid anion-containing polymer having a triarylsulfonium cation , comprising the steps of:(1) preparing a sulfonic acid anion-containing polymer having an ammonium or metal cation not bound thereto,(2) subjecting the polymer to water washing or crystallization, and(3) then reacting the polymer with a triarylsulfonium salt.6. The method of wherein the step (3) of reacting the polymer from step (2) with a triarylsulfonium salt is performed in a two-layer system using water and an organic solvent separable from water.7. A polymer prepared by the method of .8. A resist composition comprising a polymer prepared by the method of .9. The resist composition of claim 8 , further comprising a photoacid generator.10. The resist composition of claim 8 , further comprising a quencher.11. The resist composition of claim 8 , further comprising a solvent.12. The resist composition of claim 8 , further comprising a surfactant.13. A pattern forming process comprising the steps of coating the resist composition of onto a substrate claim 8 , baking to form a resist film claim 8 , exposing the resist film to high-energy radiation claim 8 , and developing it in a developer.14. The pattern forming process of wherein the high-energy radiation has a wavelength in the range of 180 to 250 nm.15. The pattern forming process of wherein the step of exposing to high-energy radiation includes immersion lithography of exposing the resist film to radiation via a liquid.16. The pattern forming ...

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Номер записи: 21
29-08-2013 дата публикации

MANGANESE CATALYZED PHOTOPOLYMERIZATION OF FLUORINATED MONOMERS

Номер: US20130225712A1
Автор: ASANDEI Alexandru D.
Принадлежит: University of Connecticut

The disclosure discloses initiating systems for the radical polymerization of alkenes, and especially fluorine substituted alkenes. The polymerization is catalyzed by a metal carbonyl, preferably manganese carbonyl. The polymerization is initiated directly from alkyl halides at room temperature under visible white light. The polymers also allow the synthesis of block copolymers. The process comprises polymerizing at least one alkene monomer in the presence of a halide radical initiator, carbonyl catalyst and a solvent, under reaction conditions and for a time sufficient to polymerize the at least one alkene monomer to form a polymer. The present disclosure provides a method for living polymerization of alkene monomers which provides a high level of macromolecular control over the polymerization process and which leads to uniform and controllable polymeric products. This disclosure also provides a method for activating any halide (Cl, Br, I) chain ends of such polymers for the synthesis of block copolymerizations. 1. A polymer comprised of fluorinated monomer said polymer having a PDI of less than about 3.2. A polymer as claimed in claim 1 , wherein the PDI is less than about 2.5.3. A polymer as claimed in claim 1 , wherein the PDI is less than about 1.5.4. A polymer as claimed in claim 1 , wherein the Mis greater than about 100.5. A polymer as claimed in claim 1 , wherein the Mis greater than about 500.6. A copolymer comprised of fluorinated monomer and at least one other monomer that can be polymerized by radical activation claim 1 , said copolymer having a PDI of less than about 3.7. A copolymer as claimed in claim 6 , wherein the PDI is less than about 2.5.8. A copolymer as claimed in claim 6 , wherein the PDI is less than about 1.5.9. A copolymer as claimed in claim 6 , wherein the copolymer is a block copolymer.10. A copolymer as claimed in claim 6 , wherein the copolymer is a block copolymer comprised of at least a second fluorinated monomer.11. A method for ...

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Номер записи: 22
29-08-2013 дата публикации

FREE RADICAL AND CONTROLLED RADICAL POLYMERIZATION PROCESSES USING HYPERVALENT IODIDE RADICAL INITIATORS

Номер: US20130225775A1
Автор: ASANDEI Alexandru D.
Принадлежит: University of Connecticut

A process is described comprising polymerizing at least one unsaturated monomer (e.g., fluorine substituted alkene monomer) in the presence of a hypervalent iodide radical initiator and a solvent, under reaction conditions and for a time sufficient to polymerize the at least one unsaturated monomer to form a polymer. The present disclosure provides a method for living polymerization of unsaturated monomers (e.g., fluorine substituted alkene monomers), which provides a high level of macromolecular control over the polymerization process and which leads to uniform and controllable polymeric products. The present disclosure also provides a method of functionalization of organic substrates with a CFor perfluoro (R) group. 1. A process comprising polymerizing at least one unsaturated monomer in the presence of a hypervalent iodide radical initiator and optionally a solvent , under reaction conditions and for a time sufficient to polymerize the at least one unsaturated monomer to form a polymer.2. A process comprising polymerizing at least one unsaturated monomer in the presence of a hypervalent iodide radical initiator comprising (CFCOO)IPh or (RCOO)IPh and optionally a solvent , under reaction conditions and for a time sufficient to polymerize the at least one unsaturated monomer to form a polymer which contains CFor perfluoro (R) groups as a chain ends.3. The process of wherein the at least one unsaturated monomer comprises at least one fluorine substituted alkene monomer claim 1 , fluorine substituted acrylic acid derivative monomer claim 1 , fluorine substituted styrene derivative monomer claim 1 , and/or fluorine substituted vinyl ether monomer.4. The process of wherein a CF— or perfluoro (R—) group is incorporated into a molecule using the (CFCOO)IPh or (RCOO)IPh hypervalent iodide radical initiator.5. The process of wherein the at least one unsaturated monomer comprises vinylidene fluoride (VDF) claim 1 , hexafluoropropene claim 1 , tetrafluoroethylene claim 1 , ...

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Номер записи: 23
05-09-2013 дата публикации

Fluorinated monomer of cyclic acetal structure, polymer, resist protective coating composition, resist composition, and patterning process

Номер: US20130231491A1
Автор: Jun Hatakeyama, Kazunori Maeda, Koji Hasegawa, Satoshi SHINACHI, Takeru Watanabe, Takeshi Kinsho, Tomohiro Kobayashi, Yuji Harada
Принадлежит: Shin Etsu Chemical Co Ltd

A fluorinated monomer of cyclic acetal structure has formula (1) wherein R is a C 1 -C 20 alkyl group which may be substituted with halogen or separated by oxygen or carbonyl, and Z is a divalent organic group which forms a ring with alkylenoxy and contains a polymerizable unsaturated group. A polymer derived from the fluorinated monomer may be endowed with appropriate water repellency, water sliding property, lipophilicity, acid lability and hydrolyzability and is useful in formulating a protective coating composition and a resist composition.

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Номер записи: 24
19-09-2013 дата публикации

Liquid compositions of fluorinated ion exchange polymers

Номер: US20130244138A1
Автор: Arcella Vincenzo, Merlo Luca, Oldani Claudio
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

A liquid composition comprising at least one aprotic organic solvent and at least one fluorinated ion exchange polymer which consists of recurring units derived from a chlorofluoroolefin of formula CF═CCIY, wherein Y is F or CI, and from at least one fluorinated functional monomer selected among those of formula CF═CF—O—(CFCF(CF)O)—(CF)SOX, wherein m is an integer equal to 0 or 1, n is an integer from 0 to 10 and X is chosen among halogens (CI, F, Br, I), —OM, wherein Mis a cation selected among H, NH, K, Li, Na, or mixtures thereof is disclosed. The liquid composition is suitable for the preparation of ion exchange membranes, in particular composite membranes, for use in fuel cell applications. 1. A liquid composition comprising:at least one aprotic organic solvent; and{'sub': 2', '2', '2', '3', 'm', '2', 'n', '2', '4, 'sup': −', '+', '+', '+', '+', '+', '+', '+, 'at least one fluorinated ion exchange polymer dissolved or dispersed in said at least one aprotic organic solvent, said fluorinated ion exchange polymer consisting of: 40 to 94 mol % of recurring units derived from a chlorofluoroolefin of formula CF═CCIY, wherein Y is either F or CI, and from 6 to 60 mol % of recurring units derived from at least one functional monomer of formula CF═CF—O—(CFCF(CF)O)—(CF)SOX, wherein m is an integer equal to 0 or 1, n is an integer from 0 to 10 and X is chosen among halogens (CI, F, Br, I), —OM, wherein Mis a cation selected among H, NH, K, Li, Na, or mixtures thereof.'}2. The liquid composition according to wherein claim 1 , when X is —OM claim 1 , and Mis a cation selected among H claim 1 , NH claim 1 , K claim 1 , Li claim 1 , Na claim 1 , or mixtures thereof claim 1 , the aprotic organic solvent is a polar aprotic organic solvent.3. The liquid composition according to wherein when X is selected among F claim 1 , CI claim 1 , Br claim 1 , I the aprotic organic solvent is an apolar aprotic organic solvent.4. The liquid composition according to anyone of to claim 1 , ...

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Номер записи: 25
19-09-2013 дата публикации

IONOMERS AND IONICALLY CONDUCTIVE COMPOSITIONS

Номер: US20130245219A1
Автор: Aten Ralph Munson, Perry Randal L., Roelofs Mark Gerrit, Wheland Robert Clayton
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

This invention relates to ionomers and to ionically conductive compositions formed therefrom. The ionomers comprise polymerized units of monomers A and monomers B, wherein monomers A are perfluoro dioxole or perfluoro dioxolane monomers, and the monomers B are functionalized perfluoro olefins having fluoroalkyl sulfonyl, fluoroalkyl sulfonate or fluoroalkyl sulfonic acid pendant groups, CF═CF(O)[CF]SOX. The ionically conductive compositions of the invention are useful in fuel cells, electrolysis cells, ion exchange membranes, sensors, electrochemical capacitors, and modified electrodes. 2. The ionomer of further comprising polymerized units of one or more fluoromonomer (C):{'br': None, 'sub': 2', '2', 'm', '3, 'CF═CF—O—[CF]—CF\u2003\u2003(C)'}wherein m=0, 1, 2, 3, or 4.3. The ionomer of having less than 500 carboxyl pendant groups or end groups per million carbon atoms of polymer.45-. (canceled)6. The ionomer of having more than 250 —SOX groups as end groups on the polymer backbone per million carbon atoms of polymer claim 1 , wherein X═F claim 1 , Cl claim 1 , OH or OM and wherein M is a monovalent cation.7. The ionomer of in which 50 to 100% of polymer chain end groups are —SOX claim 1 , wherein X═F claim 1 , Cl claim 1 , OH or OM and wherein M is a monovalent cation.8. The ionomer of in which 50 to 100% of polymer chain end groups of the ionomer are perfluoroalkyl groups terminating with —SOX groups claim 1 , wherein X═F claim 1 , Cl claim 1 , OH or OM and wherein M is a monovalent cation.9. The ionomer of having X═F or Cl and a Tg claim 1 , as measured by Differential Scanning Calorimetry (DSC) claim 1 , in the range of 100 to 250° C.10. The ionomer of having X═OH or OM and a Tg claim 1 , as measured by Dynamic Mechanical Analysis (DMA) claim 1 , in the range of 200 to 270° C.11. The ionomer of having a solubility in hexafluorobenzene claim 1 , at 23° C. claim 1 , of more than 15 grams of ionomer per 1000 grams of hexafluorobenzene when in the X═F or X═Cl form. ...

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Номер записи: 26
10-10-2013 дата публикации

Vinylidene fluoride copolymers

Номер: US20130264522A1
Автор: Alessio Marrani, Bradley Lane Kent, Giulio Brinati, Milena Stanga
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention pertains to a fluoropolymer [polymer (F)] comprising: recurring units derived from vinylidene fluoride (VDF), and from 0.01% to 5% by moles of recurring units derived from at least one (meth)acrylic monomer [monomer (MA)] having formula (I) here below: wherein: R 1 , R 2 and R 3 , equal to or different from each other, are independently selected from a hydrogen atom and a C 1 -C 3 hydrocarbon group, and R OH represents a hydrogen atom or a C 1 -C 5 hydrocarbon moiety comprising at least one hydroxyl group, said polymer (F) comprising end groups having formula —CF 2 H and/or —CF 2 CH 3 in an amount of at least 30 mmoles per Kg of vinylidene fluoride (VDF) recurring units. The invention also pertains to a process for the manufacture of said polymer (F) and to use of said polymer (F) as binders for the manufacture of electrodes or for the manufacture of membranes.

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Номер записи: 27
10-10-2013 дата публикации

Hydrophilic vinylidene fluoride polymers

Номер: US20130267622A1
Автор: ABUSLEME Julio A., Bertasa Anna Maria, BIANCARDI Roberto, Brinati Giulio, Roblot Fabien
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

The present invention pertains to a process for the manufacture of a grafted fluorinated polymer comprising at least one grafted side chain comprising one or more glycosidic recurring units [polymer (F)], said process comprising polymerizing: 2. The process of claim 1 , wherein the polysaccharide derivative comprises as recurring units glycosidic units selected from the group consisting of D-glucopyranosides linked to each other by glycosidic bonds.4. The process of claim 1 , wherein the polysaccharide derivatives has a dynamic viscosity comprised between 2 and 10 mPa×s claim 1 , as measured according to ASTM D445 at 20° C. in an aqueous solution at a concentration of 2% by weight.5. The process of claim 1 , wherein one or more suspension stabilizers are used.6. A fluorinated polymer [polymer (F)] comprising:a main chain comprising recurring units derived from vinylidene fluoride (VDF), optionally, said recurring units derived from one or more other fluorinated monomers [monomers (F)] and, optionally, said recurring units derived from one or more (meth)acrylic monomers [monomers (MA)], andat least one side chain grafted to said main chain, said grafted side chain comprising one or more glycosidic recurring units.7. The polymer of claim 6 , comprising at least 40 ppm of hydrogen atoms of one or more glycosidic recurring units in at least one grafted side chain of polymer (F) with respect to the total amount of hydrogen atoms of VDF recurring units in the main chain of polymer (F).8. The polymer of claim 6 , wherein at least one side chain comprises one or more β-D-glucopyranosides of formula (III-b) as described in linked to each other by β-glycosidic bonds.9. A composition comprising the polymer of and at least one VDF polymer.10. A hydrophilic membrane comprising the polymer of or the composition of . This application claims priority to European application No. 10196420.3 filed on 22 Dec. 2010, the whole content of this application being incorporated herein by ...

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Номер записи: 28
10-10-2013 дата публикации

Fluorine-containing elastomer composition and molded article made of same

Номер: US20130267662A1
Автор: Michiko Doi, Mitsuhiro Otani
Принадлежит: Daikin Industries Ltd

There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.

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Номер записи: 29
24-10-2013 дата публикации

Fluoropolymer compositions and purification methods thereof

Номер: US20130281607A1
Автор: André Streiter, Gunther J. Kaempf, Harald Kaspar, Herbert Koenigsmann, Kai H. Lochhaas, Klaus Hintzer, Michael Juergens, Oleg Shyshkov, Tilman C. Zipplies
Принадлежит: 3M Innovative Properties Co

Described herein is a composition comprising an aqueous polymerization reaction product of fluorinated monomers and wherein the polymerization is initiated (i) in the absence of a fluorinated emulsifier and whereby no fluorinated emulsifier is added during polymerization or (ii) in the presence of an fluorinated emulsifier selected from: [R f —O-L-COO-] i X i+ (I) wherein L represents a linear or branched, non-fluorinated, partially fluorinated, or fully fluorinated alkylene group, R f represents a linear or branched partially or fully fluorinated aliphatic group or a linear or branched partially or fully fluorinated aliphatic group interrupted with at least one oxygen atom, X i+ represents a cation having the valence i and i is 1, 2 or 3; wherein the reaction product and/or the resulting aqueous phase are substantially free of di- and tri-alkylamines and substantially free of low molecular weight fluoroorganic compounds and methods thereof.

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Номер записи: 30
31-10-2013 дата публикации

METHOD FOR OBTAINING A PIEZOELECTRIC LINER FOR A HIGH PRESSURE STORAGE VESSEL

Номер: US20130289199A1
Автор: Leterrier Yves, Manson Yan-Anders, OLIVEIRA Fabiane
Принадлежит: BELENOS CLEAN POWER HOLDING AG

The piezoelectric and barrier liner for a high-pressure storage vessel is made out of PVDF-TrFE copolymer and the amount of crystallinity in the liner material is over 30%, preferably 35% at least. 1. A liner ,wherein the liner is made out of PVDF-TrFE copolymer, andan amount of crystallinity in a material of the liner is over 30%.2. A method for obtaining a polymer film with improved barrier and piezoelectric properties , annealing a film of PVDF-TrFE comprising between 55 and 82 mol % of VDF, for at least 2 hours at a temperature between 120 and 145° C.; and then', 'poling the film., 'the method comprising3. The method of claim 2 , wherein the copolymer comprises between 70 and 80 mol % of VDF.4. The method of claim 3 , wherein the copolymer comprises 79 mol % of VDF.5. The method of claim 2 , wherein the annealing is carried out for more than 3 hours.6. The method of claim 2 , wherein the PVDF-TrFE film is annealed at a temperature between 125 and 140° C.7. The method of claim 2 , wherein the poling is carried out using an electrostatic field between 700 and 800 KV/cm.8. A copolymer film obtained by the method of .9. The copolymer film of claim 8 , wherein the copolymer film is suitable as a barrier liner in a high pressure storage vessel.10. The liner of claim 1 , wherein the material of the liner is at least 35%.11. The method of claim 2 , wherein the annealing is carried out for more than 4 hours.12. The method of claim 3 , wherein the PVDF-TrFE film is annealed at a temperature between 125 and 140° C.13. The method of claim 4 , wherein the PVDF-TrFE film is annealed at a temperature between 125 and 140° C.14. The method of claim 5 , wherein the PVDF-TrFE film is annealed at a temperature between 125 and 140° C.15. A copolymer film obtained by the method of .16. A copolymer film obtained by the method of .17. A copolymer film obtained by the method of .18. A copolymer film obtained by the method of .19. A copolymer film obtained by the method of . This ...

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Номер записи: 31
14-11-2013 дата публикации

Drying Wet Fluoropolymer Resin and Exposing to Oxygen Source to Reduce Discoloration

Номер: US20130303716A1
Автор: BROTHERS PAUL DOUGLAS, Chapman Gregory Allen, Gangal Subhash Vishnu, Smith Adam Paul
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating fluoropolymer from said aqueous medium by separating wet fluoropolymer resin from the aqueous medium and drying to produce fluoropolymer resin. The process comprises: 1. Process for reducing thermally induced discoloration of fluoropolymer resin , said fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium by separating wet fluoropolymer resin from the aqueous medium and drying to produce said fluoropolymer resin , said process comprising:exposing said wet fluoropolymer resin to an oxygen source during drying.2. The process of wherein said process reduces thermally induced discoloration by at least about 10% as measured by ° A) change in L* on the CIELAB color scale.3. The process of wherein said aqueous fluoropolymer dispersion contains hydrocarbon surfactant which causes said thermally induced discoloration.4. The process of wherein said aqueous fluoropolymer dispersion is polymerized in the presence of hydrocarbon surfactant.5. The process of wherein said oxygen source is selected from the group consisting of air claim 1 , oxygen rich gas claim 1 , or ozone containing gas.6. The process of wherein said oxygen source is ozone containing gas.7. The process of wherein said wet fluoropolymer resin is separated from said dispersion by coagulating fluoropolymer from the aqueous fluoropolymer dispersion and filtering to remove the aqueous medium.8. The process of wherein said drying is carried out using drying gas heated to a temperature of about 100° C. to about 300° C.9. The process of wherein said fluoropolymer resin is PTFE resin and said drying is carried out using drying gas heated to a temperature of about 100° C. to about 200° C.10 ...

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Номер записи: 32
05-12-2013 дата публикации

Dispersant for suspension polymerization, vinyl chloride resin and method for producing same

Номер: US20130324655A1
Автор: Shigeharu Yoshii
Принадлежит: Denki Kagaku Kogyo KK

Provided are a dispersant for suspension polymerization that is superior in basic properties as primary dispersant: i.e., of giving a vinyl chloride resin with lower fish eye-forming tendency and higher bulk specific density, gives low aqueous solution viscosity and is superior in processability during solubilization, a vinyl chloride resin prepared by using the same and a production method for the resin. Used is a dispersant for suspension polymerization, comprising a modified polyvinyl alcohol containing constituent units carrying carbonyl groups such as alkyl maleates and having a saponification value of 75 mol % or more and less than 90 mol %, an absorbance at a wavelength of 280 nm, as determined as 0.2 mass % aqueous or mixed water and methanol solution, of 0.5 to 2.5 and a viscosity, as determined by the method specified by JIS K 6726, of 4 mPa·s or more and less than 30 mPa·s.

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Номер записи: 33
19-12-2013 дата публикации

Coupling agents and compositions produced using them

Номер: US20130338312A1
Автор: Agathe Robisson, Huilin Tu, Julien Ramier
Принадлежит: Schlumberger Technology Corp

Certain embodiments described herein are directed to silane coupling agents that may be used, for example, to covalently couple a polymer to a filler. In some examples, devices that include the polymer-silane coupling agent-filler compositions are also described.

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Номер записи: 34
02-01-2014 дата публикации

POLYMER COMPOSITION, PHOTORESIST COMPRISING THE POLYMER COMPOSITION, AND COATED ARTICLE COMPRISING THE PHOTORESIST

Номер: US20140004464A1
Автор: Christianson Matthew D., MEYER Matthew M., Ongayi Owendi
Принадлежит:

A copolymer comprises the polymerized product of a dissolution-rate controlling monomer having the formula (I), an acyclic vinyl ether monomer of the formula (II), and a cyclic vinyl ether monomer of the formula (III): 7. A photoresist composition comprising the copolymer of claim 1 , and a photoacid generator claim 1 , wherein the photoacid generator is an additive or is incorporated into the copolymer.8. A coated substrate claim 7 , comprising: (a) a substrate having one or more layers to be patterned on a surface thereof; and (b) a layer of a photoresist composition of over the one or more layers to be patterned.9. A method of forming an electronic device claim 7 , comprising: (a) applying a layer of a photoresist composition of on a substrate; (b) patternwise exposing the photoresist composition layer to activating radiation; and (c) developing the exposed photoresist composition layer to provide a resist relief image.10. The method of claim 9 , wherein the radiation is extreme-ultraviolet or e-beam radiation. Design rules for advanced generation microlithography (i.e., beyond 193 nm immersion lithography and into next generation optics such as e-beam, X-ray, and extreme ultraviolet (EUV) lithography operating at a very short wavelength of 13.4 nm) are trending toward smaller and smaller dimensions, for example, 30 nm and below. In general, depth of focus (DOF) necessarily decreases with higher resolution due to the higher numerical aperture (NA) and therefore resist thickness also decreases commensurate with the smaller and smaller feature sizes. With narrower linewidths and thinner resist films, increasingly sensitive materials which provide improved resolution are needed.Backbone fluorination of resist polymers, as an alternative to fluorinating the pendant or leaving groups of a polymer, can improve EUV photon absorbing properties in the polymer without altering leaving group or other properties. However, introducing fluorine atoms near a monomer's ...

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Номер записи: 35
02-01-2014 дата публикации

High melting fluoropolymers

Номер: US20140005325A1
Автор: Caiping Lin, Ramin Amin-Sanayei
Принадлежит: Arkema Inc

The invention relates to a method for making copolymers of 2,3,3,3-tetrafluoropropene and vinylidene fluoride by an emulsion polymerization process having unexpectedly high melting temperatures, even at low crystallinity levels. The invention involves adjusting the microstructure of the copolymers through a controlled polymerization to obtain controlled microstructure copolymers with unique properties, including those with high melting temperature and low crystallinity.

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Номер записи: 36
16-01-2014 дата публикации

Measuring Tube Lining

Номер: US20140013858A1
Автор: Brobeil Wolfgang, Ruchel Johannes
Принадлежит: Endress + Hauser Flowtec AG

A measuring tube for a lining of a measuring tube of a flow measuring device, wherein a nanoparticle is chemically bound to a polymer. 115-. (canceled)16. A measuring tube lining of a synthetic material or plastic produced with a method for manufacturing a synthetic material or plastic for a lining of a measuring tube of a flow measuring device , wherein:nanoparticles are bound chemically to monomers, oligomers or polymers as components of the synthetic material or plastic; andmonomers having predetermined end groups are combined with nanoparticles having predetermined end groups to form polymers.17. The measuring tube lining as claimed in claim 16 , wherein:said nanoparticles are chemically bound to said monomers, oligomers or polymers by one of: radical reactions, condensation-, addition- and metathesis reactions.18. The measuring tube lining as claimed in claim 16 , wherein:said nanoparticles each have one or more end groups, which are suitable for forming a chemical bond with said monomer, said oligomer or said polymer.19. The measuring tube lining as claimed in claim 16 , wherein:said polymers comprise PUR, PFA or PTFE.20. The measuring tube lining as claimed in claim 16 , wherein:said nanoparticles comprise end group modified, pyrogenic, silicic acids.21. The measuring tube lining as claimed in claim 16 , wherein:said nanoparticles are added in a predetermined concentration to the starting substances, so that said nanoparticles are present in the synthetic material or plastic in a concentration of 0.1 to 5 wt.-%.22. The measuring tube lining as claimed in claim 16 , wherein:a liquid multicomponent system is formed, which contains monomers or prepolymers, an alcohol, a catalyst and said nanoparticles;said monomers or said prepolymers react with said nanoparticles to form a chemically stable bond; andsaid multicomponent system hardens.23. The measuring tube lining as claimed in claim 16 , wherein:a liquid multicomponent system is formed of an isocyanate, an ...

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Номер записи: 37
20-03-2014 дата публикации

FLUOROELASTOMERS

Номер: US20140080987A1
Автор: Feng Kobe, Lin Yun, Liu Jun, POSS Andrew J., SINGH Rajiv R.
Принадлежит: HONEYWELL INTERNATIONAL INC.

A fluoroelastomer comprising a copolymer of fluoroolefin monomers selected from one or more of the group consisting of 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene and 1-chloro-3,3,3-trifluoropropene, and ethylenically unsaturated co-monomers; wherein the fluoroelastomer has a glass transition temperature (Tg) of from about −60° C. to about 53° C. A process of making the fluoroelastomer. 1. A fluoroelastomer comprising a copolymer comprising a) fluoroolefin monomers selected from one or more of the group consisting of 2 ,3 ,3 ,3-tetrafluoropropene , 1 ,3 ,3 ,3-tetrafluoropropene and 1-chloro-3 ,3 ,3-trifluoropropene , and b) ethylenically unsaturated co-monomers; wherein the fluoroelastomer has a glass transition temperature (Tg) of from about −60° C. to about 53° C.2. A fluoroelastomer consisting essentially of a copolymer comprising a) fluoroolefin monomers selected from one or more of the group consisting of 2 ,3 ,3 ,3-tetrafluoropropene , 1 ,3 ,3 ,3-tetrafluoropropene and 1-chloro-3 ,3 ,3-trifluoropropene , and b) ethylenically unsaturated co-monomers; wherein the fluoroelastomer has a glass transition temperature (Tg) of from about −60° C. to about 53° C.3. The fluoroelastomer of claim 1 , wherein the ethylenically unsaturated co-monomers are selected from one or more of the group consisting of ethylene claim 1 , propene claim 1 , butylene claim 1 , cyclopentene claim 1 , cycloheptene claim 1 , cyclooctene and hexafluoropropylene.4. The fluoroelastomer of claim 3 , wherein all the ethylenically unsaturated co-monomers together are present in an amount of from about 30 to about 95 mole percent of all the monomers of the copolymer.5. The fluoroelastomer of claim 4 , wherein the mole ratio of all the fluoroolefin monomers together to all the ethylenically unsaturated co-monomers together is from about 1:0.8 to about 1:4.3.6. The fluoroelastomer of claim 5 , wherein the copolymer comprises curing site monomers.7. The fluoroelastomer of claim 6 , wherein ...

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Номер записи: 38
27-03-2014 дата публикации

Expanded ionomers and their uses

Номер: US20140088208A1
Автор: Alastair M. Hodges, Garry Chambers
Принадлежит: EXONOMER PTY LTD

Disclosed herein are expanded ionomer materials including a plurality of voids. Also disclosed are methods of making and using the expanded ionomer materials.

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Номер записи: 39
27-03-2014 дата публикации

COMPOSITE MATERIALS COMPRISING POLYAMIDS AND FLUOROELASTOMERS

Номер: US20140088257A1
Автор: Corveleyn Steven G.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A composite material comprising a first component directly bonded to a second component, the first component comprising a peroxide cured fluoroelastomer having a temperature reflection TR-10 of −19 C or lower as measured according to ASTM D 1329 and the second component comprising a polyamide resin, and methods of making such composite materials and shaped articles containing the composite materials. 1. A composite material comprising a first component directly bonded to a second component , the first component comprising a peroxide cured fluoroelastomer having a temperature retraction TR-10 of −19° C. or lower as measured according to ASTM D 1329 and the second component comprising a polyamide resin having a heat deflection temperature (HDT) of at least 130° C. under a load of 0.45 MPa measured according to ASTM D648.2. The composite material according to wherein the fluoroelastomer has a temperature retraction TR-10 of −25° C.3. The composite material according to wherein the polyamide resin has a heat deflection temperature of at least 190° C. under a load of 0.45 MPa measured according to ASTM D648.4. The composite material according to wherein the second component has a heat deflection temperature of at least 230° C. under a load of 0.45 MPa or 1.8 MPa measured according to ASTMD 648.5. The composite material according to wherein the polyamide resin contains repeating units selected from:{'sub': 2', '6', '2', '4, '—NH—(CH)—NH—CO—(CH)—CO—,'}{'sub': 2', '5, '—NH—(CH)—CO—, and'}{'sub': 2', '4', '2', '4, '—HN—(CH)—NH—CO—(CH)—CO—.'}6. The composite material according to wherein the polyamide resin is selected from PA 6 claim 1 , PA 6.6 claim 1 , PA 4.6 claim 1 , PA 6.66 and PA 66.610.7. The composite material according to wherein the polyamide resin is a polyphthalamide.8. The composite material according to wherein the polyamide resin is a polyamide imide.9. The composite material according to wherein the polyamide resin is a reinforced polyamide.10. The composite ...

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Номер записи: 40
03-04-2014 дата публикации

Expandable TFE Copolymers, Method of Making, and Porous, Expanded Articles Thereof

Номер: US20140094557A1
Автор: Ford Lawrence A.
Принадлежит: W. L. Gore & Associates, Inc.

A true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one comonomer other than TFE in concentrations of at least or exceeding 1.0 weight percent, and which can exceed 5.0 weight percent, wherein the copolymer is expandable, that is, the copolymer may be expanded to produce strong, useful, expanded TFE copolymeric articles having a microstructure of nodes interconnected by fibrils. Articles made from the expandable copolymer may include tapes, membranes, films, fibers, and are suitable in a variety of end applications, including medical devices. 1. An expandable tetrafluoroethylene (TFE) copolymer , said copolymer containing 99.0% or less by weight tetrafluoroethylene monomer units and at least 1.0% by weight of at least one other comonomer other than tetrafluoroethylene , wherein said copolymer exhibits adhesion.2. The expandable tetrafluoroethylene (TFE) copolymer of claim 1 , wherein said adhesion is exhibited after subjecting the copolymer to a temperature at or below about 290° C.3. The expandable tetrafluoroethylene (TFE) copolymer of claim 1 , wherein said copolymer exhibits adhesion after subjecting the copolymer to its first melt transition temperature or above.4. The expandable tetrafluoroethylene (TFE) copolymer of claim 1 , wherein said copolymer exhibits adhesion after subjecting the copolymer to a temperature between its first melt transition temperature and about 290° C.5. The copolymer of claim 1 , wherein said at least one other comonomer is an olefin selected from the group consisting of ethylene claim 1 , propylene and isobutylene.6. The copolymer of claim 1 , wherein said at least one other comonomer is a fluorinated monomer selected from the group consisting of chlorotrifluoroethylene (CTFE) claim 1 , hexafluoro-propylene (HFP) claim 1 , vinylidene fluoride (CFH═CH) claim 1 , vinylidene difluoride (CF═CH) claim 1 , hexafluoroisobutylene(HFIB) claim 1 ...

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Номер записи: 41
10-04-2014 дата публикации

SELF-BONDING FLUOROPOLYMERS AND METHODS OF PRODUCING THE SAME

Номер: US20140099461A1
Автор: Swanick Thomas M.
Принадлежит:

A method of making expanded fluoropolymer articles thermally bonds portions of expanded fluoropolymers together, without using an adhesive or crushing force, to produce stronger bonds at the joint between the expanded fluoropolymers than the bonds within the constituent expanded fluoropolymers. The method involves placing the portions of expanded fluoropolymers to be thermally bonded together in intimate contact with each other after wet-stretching the expanded fluoropolymers, and removing the wetting agent used to wet-stretch the expanded fluoropolymers, without subsequent expansion or stretching, to yield an expanded fluoropolymer article exhibiting unexpected and superior properties that can be used in a variety of medical and industrial applications. 1. An expanded fluoropolymer thermally bonded to itself without an adhesive.2. The fluoropolymer of claim 1 , wherein the expanded fluoropolymer comprises PTFE.3. The fluoropolymer of claim 1 , wherein the expanded fluoropolymer is non-porous.4. The fluoropolymer of claim 1 , wherein at least two portions of the fluoropolymer are bonded together without the adhesive to form bonds that have an x-direction tensile strength that is greater than the x-direction tensile strength of the fluoropolymer itself.5. The fluoropolymer of claim 4 , wherein the bonds comprise a combination of bonds.6. The fluoropolymer of claim 5 , wherein the combination of bonds is selected from the group consisting of covalent bonds claim 5 , van der Walls forces claim 5 , hydrogen bonds claim 5 , ionic bonds claim 5 , electrostatic interactions and changes created in the chain entanglement of the expanded fluoropolymer.7. The fluoropolymer of claim 5 , wherein the combination of bonds comprises covalent bonds.8. The fluoropolymer of claim 5 , wherein the combination of bonds comprises van der Walls forces.9. The fluoropolymer of claim 5 , wherein the combination of bonds comprises hydrogen bonds.10. The fluoropolymer of claim 5 , wherein the ...

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Номер записи: 42
01-01-2015 дата публикации

POLYVINYL CHLORIDE - COMPOSITION, TUBE, CHANNEL OR CONTAINER, USE OF A PVC COMPOSITION AND USE OF A TUBE, OF A CHANNEL OR OF A CONTAINER

Номер: US20150000782A1
Автор: Giersbach Florian, Schuessler Stephan, Weiss Achim, Wewior Gerhard
Принадлежит:

A polyvinyl chloride (PVC) composition is proposed which comprises a PVC resin having a molecular weight distribution having a number average of M=60 kDa to M=70 kDa and a weight average of M=114 kDa to M=124 kDa, wherein the total composition has a chlorine content from 56% to 62%. 1. A polyvinyl chloride (PVC) composition , comprising:{'sub': N', 'N', 'W', 'W, 'a PVC resin of the composition has having a molecular weight distribution with a number average of M=from 60 kDa to M=70 kDa and a weight average of M=from 114 kDa to M=124 kDa, and whereinthe chlorine content of the entire composition is from 56% to 62%.2. The PVC composition as claimed in claim 1 , having a Vicat softening point above 90° C.3. The PVC composition as claimed in claim 1 , wherein the composition is free from impact modifiers.4. The PVC composition as claimed in claim 1 , wherein the composition is free from chalk and/or calcium and/or magnesium.5. The PVC composition as claimed in claim 1 , wherein the composition comprises tin and/or a component comprising tin.6. A pipe claim 1 , channel claim 1 , or container for the passage and/or storage of chemically aggressive substances claim 1 , wherein the pipe claim 1 , the channel claim 1 , or the container comprises a PVC composition as claimed in .7. The pipe as claimed in claim 1 , wherein the pipe is a composite pipe which has an outer wall that comprises glassfiber-reinforced thermoset resin claim 1 , where the pipe has an inner wall which comprises a PVC composition as claimed in .8. The pipe as claimed in claim 7 , wherein the inner wall has been bonded to the outer wall via with at least one adhesive resin.9. The use of a PVC composition as claimed in as material resistant to chemicals and to temperature changes for the production of pipes claim 1 , channels claim 1 , containers claim 1 , sheets claim 1 , moldings claim 1 , and/or welding rod.10. The use of a PVC composition as claimed in as material resistant to chemicals and to ...

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Номер записи: 43
01-01-2015 дата публикации

FLUOROELASTOMERS FOR MARKING SYSTEM COMPONENTS, INCLUDING GRAFTED FLUORINATED POLYMERS

Номер: US20150002592A1
Автор: Badesha Santokh S., CHIDAMBARESWARAPATTAR Chakkaravarthy, Gervasi David J., Kanungo Mandakini, Kelly Matthew M., SHARMA Akshat
Принадлежит: XEROX CORPORATION

A marking system surface material includes a fluoroelastomer including grafted fluorinated polymers. The fluoroelastomer is a perfluoropolyether-grafted fluoroelastomer formed using an alkoxy-terminated fluorosilicone component, and exhibiting high contact angle and low sliding angle. 1. A fluoropolymer composition of matter useful for marking system applications , comprising:a fluoroelastomer component; anda perfluoropolyether component.2. The composition of claim 1 , wherein in the fluoroelastomer is a terpolymer claim 1 , the terpolymer being a peroxide curable terpolymer.3. The composition of claim 1 , comprising the fluoroelastomer component being grafted to the perfluoropolyether component with an amino-functionalized alkoxy-terminated fluorosilicone component.4. A marking system surface material claim 1 , comprising:a perfluoropolyether-grafted fluoroelastomer formed using an alkoxy-terminated fluorosilicone component.5. The marking system material of claim 4 , comprising:one or more functional fillers.6. The marking system material of claim 4 , wherein the material comprising a marking material system component surface configured for contacting marking material claim 4 , the marking material being ink or toner claim 4 , wherein the perfluoropolyether-grafted fluoroelastomer accommodates anti-contamination of the surface.7. The marking system of claim 6 , wherein the material is flow-coated onto the surface.8. A method of forming a fluoroelastomer comprising grafted fluorinated polymers claim 6 , the method comprising:combining a first solution comprising a fluoroelastomer component and a second solution comprising an amino-functionalized fluorosilicone crosslinker component.9. The method of claim 8 , the second solution comprising a perfluoropolyether component.10. The method of claim 8 , the first solution being formed by preparing a surfactant mixture of FC-4430 and AKF-290 fluorosurfactants and combining the mixture with the fluoroelastomer component.11. ...

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Номер записи: 44
07-01-2021 дата публикации

SELF-BONDING FLUOROPOLYMERS AND METHODS OF PRODUCING THE SAME

Номер: US20210002394A1
Автор: Swanick Thomas M.
Принадлежит: ATRIUM MEDICAL CORPORATION

A method of making expanded fluoropolymer articles thermally bonds portions of expanded fluoropolymers together, without using an adhesive or crushing force, to produce stronger bonds at the joint between the expanded fluoropolymers than the bonds within the constituent expanded fluoropolymers. The method involves placing the portions of expanded fluoropolymers to be thermally bonded together in intimate contact with each other after wet-stretching the expanded fluoropolymers, and removing the wetting agent used to wet-stretch the expanded fluoropolymers, without subsequent expansion or stretching, to yield an expanded fluoropolymer article exhibiting unexpected and superior properties that can be used in a variety of medical and industrial applications. 1. An expanded fluoropolymer thermally bonded to itself without an adhesive.2. The fluoropolymer of claim 1 , wherein the expanded fluoropolymer comprises PTFE.3. The fluoropolymer of claim 1 , wherein the expanded fluoropolymer is non-porous.4. The fluoropolymer of claim 1 , wherein at least two portions of the fluoropolymer are bonded together without the adhesive to form bonds that have an x-direction tensile strength that is greater than the x-direction tensile strength of the fluoropolymer itself.5. The fluoropolymer of claim 4 , wherein the bonds comprise a combination of bonds.6. The fluoropolymer of claim 5 , wherein the combination of bonds is selected from the group consisting of covalent bonds claim 5 , van der Walls forces claim 5 , hydrogen bonds claim 5 , ionic bonds claim 5 , electrostatic interactions and changes created in the chain entanglement of the expanded fluoropolymer.7. The fluoropolymer of claim 5 , wherein the combination of bonds comprises covalent bonds.8. The fluoropolymer of claim 5 , wherein the combination of bonds comprises van der Walls forces.9. The fluoropolymer of claim 5 , wherein the combination of bonds comprises hydrogen bonds.10. The fluoropolymer of claim 5 , wherein the ...

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Номер записи: 45
03-01-2019 дата публикации

ELASTOMER MATERIAL FOR MEDICAL DEVICES AND ELASTOMER MOLDED BODY FOR MEDICAL DEVICES

Номер: US20190002682A1
Автор: TOMIZUKA Kazuhito
Принадлежит: OLYMPUS CORPORATION

This elastomer material for medical devices contains: a first fluorine-based elastomer that is a ternary copolymer comprising three kinds of monomers A, B and C; and a second fluorine-based elastomer that is a ternary copolymer comprising the monomers A and B and a monomer D which is different from any one of the monomers A, B and C. The monomer C and the monomer D have side chains that have structures different from each other. 1. An elastomer material for medical devices comprising:a first fluorine-based elastomer which is a ternary copolymer having three kinds of monomers A, B and C; anda second fluorine-based elastomer which is a ternary copolymer having the monomers A and B and a monomer D different from any one of the monomers A, B and C,wherein the monomer A is vinylidene fluoride, the monomer B is tetrafluoroethylene, the monomer C is hexafluoropropylene, and the monomer D is perfluoroalkyl vinyl ether.2. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a crosslinking aid is contained in an amount of not more than 15 parts by weight and not zero.3. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a filler is contained in an amount of not more than 50 parts by weight and not zero.4. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a third fluorine-based elastomer whose number average molecular weight is 5000 or less and having no crosslinking reactive group is contained in an amount of not more than 50 parts by weight and not zero.5. An elastomer molded body for medical devices comprising:a first ...

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Номер записи: 46
02-01-2020 дата публикации

HIERARCHICAL MAGNETIC NANOPARTICLE-ENZYME MESOPOROUS ASSEMBLIES EMBEDDED IN MACROPOROUS SCAFFOLDS

Номер: US20200002698A1
Автор: ANESHANSLEY Daniel, CORGIE Stephane C., Duan Xiaonan, Giannelis Emmanuel, WALKER Larry P.
Принадлежит: CORNELL UNIVERSITY

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion. 122.-. (canceled)23. A method for epoxidation reactions of alkenes , the method comprising reacting alkenes in the presence of oxygen with a hierarchical catalyst composition comprising a continuous macroporous scaffold in which is incorporated self-assembled mesoporous aggregates of magnetic nanoparticles containing an oxygen-transfer enzyme embedded in mesopores of said mesoporous aggregates of magnetic nanoparticles , to produce an alkene oxide.24. The method of claim 23 , wherein said oxygen-transfer enzyme is a chloroperoxidase or a lipase.2539.-. (canceled)40. The method of claim 23 , further comprising magnetic particles claim 23 , not belonging to said mesoporous aggregates of magnetic nanoparticles claim 23 , embedded in said continuous macroporous scaffold.41. The method of claim 23 , wherein said continuous macroporous scaffold has a polymeric composition.42 ...

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Номер записи: 47
13-01-2022 дата публикации

Perfluoro surfactant and preparation method therefor

Номер: US20220008881A1
Автор: Ai Chen
Принадлежит: Inner Mongolia Huansheng Technology Co Ltd

A perfluoro surfactant and a preparation method therefor. A carbon fluorine bond is not prone to break when the perfluoro surfactant is used as an emulsifier in a fluorine polymer reaction, such that the average molecular weight of a fluorine polymer generated in the fluorine polymer reaction is significantly increased. The preparation method is implemented in a continuous micro-channel reaction system, where the retention time of a reactant in the reaction system can be greatly shortened to few minutes or even seconds, a back-mixing phenomenon in the reaction system can be basically eliminated, and thus the occurrence of a side reaction, an optical coupling reaction, can be greatly reduced. There are reaction stages comprising an ozonization reaction and a photo-oxidation reaction.

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Номер записи: 48
01-01-2015 дата публикации

GRAFTED POLYMERS AS OLEOPHOBIC LOW ADHESION ANTI-WETTING COATINGS

Номер: US20150005454A1
Автор: Badesha Santokh S., CHIDAMBARESWARAPATTAR Chakkaravarthy, Gervasi David J., Kanungo Mandakini, Kelly Matthew M., ROETKER Michael S., Sambhy Varun
Принадлежит: XEROX CORPORATION

An oleophobic grafted polymer includes a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer. A process for making an oleophobic grafted polymer includes crosslinking a fluoroelastomer with an aminofunctionalized silane and grafting an alkoxysilane-terminated perfluorinated polyether to the crosslinked fluoroelastomer. 1. An oleophobic grafted polymer comprising:a crosslinked fluoroelastomer; anda perfluorinated polyether grafted to the crosslinked fluoroelastomer.2. The oleophobic grafted polymer of claim 1 , wherein the fluoroelastomer is crosslinked with an aminofunctionalized silane.3. The oleophobic grafted polymer of claim 2 , wherein the aminofunctionalized silane provides graft attachment points.4. The oleophobic grafted polymer of claim 2 , wherein the aminofunctionalized silane comprises an aminoalkylsilane-modified polysiloxane.6. The oleophobic grafted polymer of claim 5 , wherein the linker L comprises a C-Calkyl terminating in a functional group capable of covalently linking to a terminal hydroxyl functionality group of the perfluorinated polyether.7. The oleophobic grafted polymer of claim 5 , wherein the fluoroelastomer (FE) is a polymer comprising a monomer unit selected from the group consisting of vinylidene fluoride claim 5 , tetrafluorethylene claim 5 , hexafluoropropylene claim 5 , perfluoromethylvinylether and combinations thereof.8. The oleophobic grafted polymer of claim 5 , wherein the fluoroelastomer (FE) has a fluorine content of at least about 65 percent.9. The oleophobic grafted polymer of claim 5 , wherein the fluoroelastomer (FE) has a molecular weight in a range from about 50 claim 5 ,000 to about 70 claim 5 ,0000 daltons as measured by gel permeation chromatography.10. The oleophobic grafted polymer of claim 5 , wherein the perfluorinated polyether (PFPE) is an alkoxysilane-terminated perfluorinated polyether having an average molecular weight in a range from about 1 claim 5 ,500 ...

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Номер записи: 49
04-01-2018 дата публикации

ELECTRODE COMPOSITIONS FOR SOLID-STATE BATTERIES

Номер: US20180006326A1
Автор: "ONeill Cory", Freigang Alex, Li Bin, Strand Deidre
Принадлежит:

An electrode formulation including a polymer, which can be ion-conducting or non-conducting; an ion-conducting inorganic material; a lithium salt; and optionally an additive salt. 1. An electrode formulation , comprising:an electrode active material, an additive salt, an ion-conducting inorganic material, and a polymer.2. The electrode formulation of wherein the additive salt is selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide claim 1 , lithium tetrafluoroborate claim 1 , lithium hexafluoroarsenate claim 1 , lithium bis(oxalato)borate claim 1 , lithium chlorate claim 1 , lithium bis(fluorosulfonyl)imide claim 1 , and lithium triflate.3. The electrode formulation of claim 1 , wherein the additive salt comprises lithium bis(trifluoromethanesulfonyl)imide.4. The electrode formulation of wherein the polymer is ion-conducting.5. The electrode formulation of wherein the polymer comprises PEO.6. The electrode formulation of wherein the polymer is non ion-conducting.7. The electrode formulation of wherein the polymer comprises PVdF.8. The electrode formulation of wherein the ion-conducting inorganic material is selected from the group consisting of LiTiAl(PO) claim 1 , LiLaZrTaO claim 1 , LiSnPS claim 1 , PS—LiS glass claim 1 , LiAlTiSiPO claim 1 , or LiPON.9. The electrode formulation of wherein the ion-conducting inorganic material comprises a phosphate group.10. The electrode formulation of wherein the ion-conducting inorganic material comprises LiTiAl(PO).11. The electrode formulation of wherein the polymer comprises PVdF claim 1 , the additive salt comprises lithium bis(trifluoromethanesulfonyl)imide claim 1 , and the ion-conducting inorganic material comprises LiTiAl(PO). The present invention is in the field of battery technology and, more particularly, in the area of solid materials and composite materials for use in electrodes in electrochemical cells.Conventional lithium ion batteries include a positive electrode (or cathode as used ...

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Номер записи: 50
04-01-2018 дата публикации

SOLID ELECTROLYTE COMPOSITIONS

Номер: US20180006328A1
Автор: "ONeill Cory", Freigang Alex, Li Bin, Strand Deidre
Принадлежит:

A solid-state electrolyte including a polymer, which can be ion-conducting or non-conducting; an ion-conducting inorganic material; a lithium salt; an additive salt and optionally a coupling agent. 1. A solid-state electrolyte , comprising:a lithium salt, an ion-conducting inorganic material, and a polymer.2. The solid-state electrolyte of further comprising a coupling agent.3. The solid-state electrolyte of claim 2 , wherein the coupling agent comprises a metal and an organic group.4. The solid-state electrolyte of claim 2 , wherein the coupling agent comprises silicon.5. The solid-state electrolyte of claim 2 , wherein the coupling agent comprises titanium.6. The solid-state electrolyte of claim 2 , wherein the coupling agent is trifunctional.7. The solid-state electrolyte of claim 2 , wherein the coupling agent comprises 3-(trimethoxysilyl)propyl methacrylate.8. The solid-state electrolyte of claim 1 , wherein the lithium salt is selected from the group consisting of lithium bis(trifluoromethanesulfonyl)imide claim 1 , lithium tetrafluoroborate claim 1 , lithium hexafluorophosphate claim 1 , lithium hexafluoroarsenate claim 1 , lithium bis(oxalato)borate claim 1 , lithium chlorate claim 1 , lithium bis(fluorosulfonyl)imide claim 1 , and lithium triflate.9. The solid-state electrolyte of claim 8 , wherein the lithium salt comprises lithium bis(trifluoromethanesulfonyl)imide.10. The solid-state electrolyte of wherein the polymer is ion-conducting.11. The solid-state electrolyte of wherein the polymer comprises PEO.12. The solid-state electrolyte of wherein the polymer is non ion-conducting.13. The solid-state electrolyte of wherein the polymer comprises PVdF.14. The solid-state electrolyte of wherein the ion-conducting inorganic material is selected from the group consisting of LiTiAl(PO) claim 1 , LiLaZrTaO claim 1 , LiSnPS claim 1 , PS—LiS glass claim 1 , LiAlTiSiPO claim 1 , or LiPON.15. The solid-state electrolyte of wherein the ion-conducting inorganic ...

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Номер записи: 51
20-01-2022 дата публикации

ANTIOXIDANT FOR ELECTROLYTE MEMBRANE OF FUEL CELL AND METHOD FOR PREPARING THE SAME

Номер: US20220021015A1
Автор: JANG Jong Hyun, KIM Hyoung-Juhn, Kim Jin Young, Lee Seung Ju, LEE So Young, PARK Hee-Young, PARK Hyun Seo, YOO Sung Jong
Принадлежит: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Disclosed is an antioxidant for a polymer electrolyte membrane of a fuel cell including cerium hydrogen phosphate (CeHPO). The presence of cerium hydrogen phosphate in the antioxidant enhances the dissolution stability of cerium and improves the ability to capture water, leading to an increase in proton conductivity. In addition, the cerium hydrogen phosphate has a crystal structure composed of smaller cerium particles. This crystal structure greatly improves the ability of the antioxidant to prevent oxidation of the electrolyte membrane. Also disclosed are an electrolyte membrane including the antioxidant, a fuel cell including the electrolyte membrane, a method for preparing the antioxidant, a method for producing the electrolyte membrane, and a method for fabricating the fuel cell. 1. An antioxidant for a polymer electrolyte membrane of a fuel cell comprising cerium hydrogen phosphate (CeHPO).2. The antioxidant according to claim 1 , wherein the antioxidant is a radical scavenger.3. The antioxidant according to claim 1 , wherein the cerium hydrogen phosphate (CeHPO) is a solid acid.4. The antioxidant according to claim 3 , wherein the cerium hydrogen phosphate (CeHPO) is in the form of nanofibers.5. The antioxidant according to claim 4 , wherein the nanofibers have a diameter of 10 to 900 nm.6. The antioxidant according to claim 1 , wherein the antioxidant is used for a fluorinated polymer electrolyte membrane.7. The antioxidant according to claim 6 , wherein the fluorinated polymer electrolyte membrane is a perfluorosulfonated ionomer electrolyte membrane.8. A polymer electrolyte membrane for a fuel cell comprising a polymer electrolyte membrane and an antioxidant comprising cerium hydrogen phosphate (CeHPO) dispersed in the polymer electrolyte membrane.9. The polymer electrolyte membrane according to claim 8 , wherein the antioxidant is a radical scavenger.10. The polymer electrolyte membrane according to claim 8 , wherein the cerium hydrogen phosphate (CeHPO) ...

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Номер записи: 52
14-01-2016 дата публикации

Fluoropolymers

Номер: US20160009840A1
Автор: Ramin Amin-Sanayei
Принадлежит: Arkema Inc

The invention relates to novel linear, semi-crystalline fluoropolymers containing 0.5 to 25 mole percent of at least one vinyl ester monomer unit. At least 40 mole percent of the vinyl ester monomer units are present in the copolymer as single monomer units (not diads or triads or greater) between two fluoromonomer units. The invention also relates to a process for forming the fluoromonomers/vinyl ester copolymer. The fluoropolymer of the invention may be used in applications benefiting from a functional fluoropolymers including as a binder, or for use in forming hydrophilic membranes and hollow fibers.

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Номер записи: 53
08-01-2015 дата публикации

Dispersed phase polymerization of halogenated vinyl monomers in the presence of live reactive stabilizers

Номер: US20150011693A1
Автор: James Wilson, Mathias Destarac
Принадлежит: Rhodia Operations SAS

The present invention concerns a method for the dispersed phase polymerisation of halogenated vinyl compounds, having the formula R b R c C═CX 1 X 2 , where: X 1 ═F or CI, X 2 ═H, F or CI, each of R b and R c , separately represents: —H, CI, F; or—an alkyl group, preferably chlorinated and/or fluorinated, and more advantageously perchlorinated or perfluorinated, comprising a step (E1) wherein said monomers are introduced into an aqueous phase together with—at least one source of free radicals; and—at least one reactive stabiliser comprising a polymer chain and a thiocarbonylthio-S group (C═S)—, said polymer chain comprising non-(N vinyl lactam) monomer units.

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Номер записи: 54
14-01-2021 дата публикации

Transparent sheet for freeing formed floor and wallboard from coating with uv paint and coating

Номер: US20210009724A1
Автор: Ruijie Wang
Принадлежит: Weifang Jichang Plastic Co ltd

A transparent sheet for freeing formed floor and wallboard from coating with UV paint and coating, including following raw materials in parts by weight: 100 parts of PVC resin powder, 25-40 parts of plasticizer, 2-5 parts of stabilizer and 1-2 parts of lubricant. A method for preparing the transparent sheet: (1) weighing the raw materials according to a ratio of the PVC resin powder, the plasticizer, the stabilizer and the lubricant; and filtering the raw materials; (2) mixing the filtered raw materials and calendering the mixture by a calender to obtain a transparent sheet blank; (3) ultraviolet-curing the transparent sheet blank and coating a wear-resistant agent onto the transparent sheet blank to obtain the transparent sheet.

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Номер записи: 55
03-02-2022 дата публикации

METHODS FOR CONVERTING PVC TO ELASTOMERS

Номер: US20220033541A1
Автор: Bara Jason Edward, Rupar Paul A.
Принадлежит:

Disclosed are methods for upcycling polyvinyl chloride (PVC) that involve the dissolving of PVC in an organic solvent; and contacting the PVC with a base, thereby providing a partially dehydrochlorinated PVC. Polymers made by the disclosed, and articles therefore, are also disclosed. 2. The partially hydrogenated claim 1 , dehydrochlorinated PVC of claim 1 , wherein the partially hydrogenated claim 1 , dehydrochlorinated PVC is from about 50% to about 99% hydrogenated.3. A method of partially dehydrochlorinating polyvinylchloride (PVC) claim 1 , comprising: dissolving the PVC in an organic solvent; and contacting the PVC with a base claim 1 , thereby providing a partially dehydrochlorinated PVC.4. The method of claim 3 , wherein the partially dehydrochlorinated PVC is precipitated by adding a non-solvent claim 3 , and the precipitate is isolated.5. The method of claim 3 , wherein the organic solvent is tetrahydrofuran claim 3 , dimethylformamide claim 3 , dichloromethane claim 3 , dimethylacetamide claim 3 , chloroform claim 3 , N-methylpyrrolidine claim 3 , dimethylsulfoxide claim 3 , or mixtures thereof.6. The method of claim 3 , wherein the base is potassium hydroxide or sodium hydroxide.7. The method of claim 3 , wherein the non-solvent is water claim 3 , methanol claim 3 , or mixtures thereof.8. The method of claim 3 , wherein the partially dehydrochlorinated PVC is from about 40% to about 95% dehydrochlorinated PVC.10. The method of claim 3 , further comprising partially hydrogenating the partially dehydrochlorinated PVC by contacting the partially dehydrochlorinated PVC with a hydrogenation catalyst claim 3 , thereby providing a partially hydrogenated claim 3 , dehydrochlorinated PVC.11. The method of claim 10 , wherein the hydrogenation catalyst is hydrogen with a palladium catalyst claim 10 , hydrogen with Raney nickel catalyst claim 10 , hydrogen with Raney cobalt claim 10 , lithium aluminum hydride claim 10 , diisobutylaluminum hydride claim 10 , or ...

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Номер записи: 56
16-01-2020 дата публикации

METHOD FOR MAKING FLUOROPOLYMERS

Номер: US20200017621A1
Автор: Merlo Luca, Oldani Claudio
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

The invention pertains to a method of making fluoropolymer dispersions using certain polymeric derivatives including a plurality of ionisable groups selected from the group consisting of —SOX, —POXand —COOX, whereas Xis H, an ammonium group or a monovalent metal, and to fluoropolymer dispersions therefrom. 1. A method for making a fluoropolymer , the method comprising emulsion polymerizing one or more than one fluorinated monomer in an aqueous medium wherein said aqueous emulsion polymerization is carried out in an aqueous medium in the presence of at least one radical initiator and at least one polyfunctional dispersant [dispersant (D)] , said dispersant (D):comprising a backbone chain comprising recurring units derived from one or more ethylenically unsaturated monomers,having a molecular weight and distribution thereof such that said dispersant (D) is substantially free from fractions having molecular weight of less than 3 000,{'sub': 3', 'a', '3', 'a', 'a', 'a, 'comprising a plurality of ionisable groups selected from the group consisting of —SOX, —POXand —COOX, whereas Xis H, an ammonium group or a monovalent metal, in an amount of at least 1.75 meq/g, with respect to the weight of dispersant (D),'}wherein the said dispersant (D) is used in an amount of at least 0.01% by weight and at most 5.00% by weight, based on the total weight of the aqueous medium.2. The method of claim 1 , wherein the amount of dispersant (D) is of at least 0.05% wt and at most 4.00% wt with respect to the total weight of the aqueous medium.3. The method of claim 1 , wherein dispersant (D) possesses a weight averaged molecular weight (M) claim 1 , as measured by GPC claim 1 , of at least 10 000 and/or of at most 1 000 000.4. The method of claim 1 , wherein the amount of said ionisable groups in dispersant (D) is of at least 1.80 meq/g claim 1 , with respect to the weight of dispersant (D) claim 1 , and/or of at most 2.50 meq/g.5. The method of claim 1 , wherein dispersant (D) comprises ...

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Номер записи: 57
21-01-2021 дата публикации

VINYL CHLORIDE POLYMERS AND COMPOSITIONS FOR ADDITIVE MANUFACTURING

Номер: US20210017374A1
Автор: Dennis Hugh, Dennis Stephen, Harrison Greg, Klamann Joerg-Dieter, Planner Dennis
Принадлежит:

The present disclosure is directed to a thermoplastic polymer for additive manufacturing, wherein the thermoplastic polymer is derived from a chlorinated monomer unit, wherein the thermoplastic polymer has a melt flow rate (MFR) suitable for additive manufacturing. The present disclosure is also directed to a method of making a 3D product formed by additive manufacturing, wherein the 3D product comprises a thermoplastic polymer derived from a chlorinated monomer unit or a thermoplastic composition comprising at least one thermoplastic polymer derived from a chlorinated monomer unit; and at least one stabiliser, wherein the thermoplastic polymer or composition has a MFR suitable for additive manufacturing. 1. A thermoplastic polymer for additive manufacturing , wherein the thermoplastic polymer is derived from a chlorinated monomer unit , wherein the thermoplastic polymer has a melt flow rate (MFR) suitable for additive manufacturing.2. A thermoplastic composition for additive manufacturing , wherein the thermoplastic composition comprises at least one thermoplastic polymer derived from a chlorinated monomer unit and at least one stabiliser , wherein the thermoplastic composition has a melt flow rate (MFR) suitable for additive manufacturing.3. The thermoplastic polymer of claim 1 , wherein the thermoplastic polymer further comprises at least one lubricant.4. The thermoplastic polymer of claim 1 , wherein the MFR is from 0.5 to 30 claim 1 , as determined at 205° C. according to ASTM D1238.5. The thermoplastic polymer of claim 1 , wherein the thermoplastic polymer has a relevant tensile strength.6. The thermoplastic polymer of claim 5 , wherein the tensile strength of the thermoplastic polymer is from 15 to 60 MPa claim 5 , measured according to ASTM 1238.7. The thermoplastic polymer of claim 1 , wherein the thermoplastic polymer is polyvinyl chloride (PVC) or chlorinated polyvinyl chloride (CPVC) claim 1 , optionally copolymerised with comonomer units selected from ...

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Номер записи: 58
10-02-2022 дата публикации

FLUOROSULFONYL GROUP-CONTAINING COMPOUND, FLUOROSULFONYL GROUP-CONTAINING MONOMER, AND THEIR PRODUCTION METHODS

Номер: US20220041765A1
Автор: Hirai Takeshi, JOMUTA Daisuke, TAMITSUJI Chikaya
Принадлежит: AGC Inc.

A method for producing a fluorosulfonyl group-containing compound to obtain a compound represented by the following formula 5 from a compound represented by the following formula 1 as a starting material and a method for producing a fluorosulfonyl group-containing monomer in which the fluorosulfonyl group-containing compound is used: 2: The fluorosulfonyl group-containing polymer of claim 1 , further comprising copolymerized units of tetrafluoroethylene.3: The fluorosulfonyl group-containing polymer of claim 2 , further comprising a copolymerized unit selected from the group consisting of chlorotrifluoroethylene claim 2 , trifluoroethylene claim 2 , vinylidene fluoride claim 2 , vinyl fluoride claim 2 , ethylene claim 2 , propylene claim 2 , perfluoro(3-butenyl vinyl ether) claim 2 , a perfluoro(allyl vinyl ether) claim 2 , a perfluoro α-olefin claim 2 , a (perfluoroalkyl)ethylene claim 2 , a (perfluoroalkyl)propene claim 2 , a perfluoro(alkyl vinyl ether) and a perfluoromonomer having a 5-membered ring.4: A sulfonic acid containing polymer obtained by hydrolysis of the fluorosulfonyl groups of the fluorosulfonyl group-containing polymer of ; wherein an ion exchange capacity of the sulfonic acid containing polymer is from 0.5 to 2.5 meq/g dry resin.5: A sulfonic acid containing polymer obtained by hydrolysis of the fluorosulfonyl groups of the fluorosulfonyl group-containing polymer of ; wherein an ion exchange capacity of the sulfonic acid containing polymer is from 0.5 to 2.5 meq/g dry resin.6: A sulfonic acid containing polymer obtained by hydrolysis of the fluorosulfonyl groups of the fluorosulfonyl group-containing polymer of ; wherein an ion exchange capacity of the sulfonic acid containing polymer is from 0.5 to 2.5 meq/g dry resin. This application is a divisional application of prior U.S. application Ser. No. 16/801,222 filed Feb. 26, 2020, the disclosure of which is incorporated herein by reference in its entirety. U.S. application Ser. No. 16/801,222 is a ...

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Номер записи: 59
10-02-2022 дата публикации

Fluoropolymer composition stabilized against changes in ph

Номер: US20220041837A1
Автор: Giulio Brinati, Mirko MAZZOLA, Serena Carella
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention relates to a composition comprising particles of at least one 1,1-difluoroethylene (VDF)-based fluoropolymer, in admixture with a stabilizer agent selected from alkaline metal hydrogencarbonates or hydrogenphosphates, and to uses of said composition notably in electrochemical cells.

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Номер записи: 60
24-01-2019 дата публикации

Ferroelectric polymers from dehydrofluorinated PVDF

Номер: US20190023817A1
Автор: Henry A. Sodano
Принадлежит: University of Michigan

A method for synthesizing a piezoelectric material is provided. The method includes dehydrofluorinating a fluoropolymer precursor by incubating the fluoropolymer precursor in the presence of a base, wherein the fluoropolymer precursor comprises poly(vinylidene fluoride) or a copolymer of vinylidene fluoride; and isolating an at least partially dehydrofluorinated fluoropolymer solid having β-phase and that exhibits melt flow processability at a temperature of greater than or equal to about 150° C. The at least partially dehydrofluorinated fluoropolymer solid is capable of forming a solid piezoelectric fluoropolymer material having β-phase in an amount sufficient to exhibit a piezoelectric strain coefficient d 31 absolute value of greater than or equal to about 25 pm/V.

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Номер записи: 61
24-01-2019 дата публикации

METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, AND POWDER

Номер: US20190023856A1
Автор: HAGI Keisuke, HOSOKAWA Kazutaka, Kato Taketo, KAWAHARA Kazuya, SUKEGAWA Masamichi, TANAKA Yuuji, TSUJI Masayuki, Yamanaka Taku, YOSHIDA Hirotoshi, YOSHIDA Ken
Принадлежит: DAIKIN INDUSTRIES, LTD.

The invention provides a production method for producing low molecular weight polytetrafluoroethylene enabling easy removal of most of C8-C14 perfluorocarboxylic acids and salts thereof, which are unfortunately generated by irradiation, from the low molecular weight polytetrafluoroethylene. The method for producing low molecular weight polytetrafluoroethylene includes: (1) irradiating polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity of 1×10to 7×10Pa·s at 380° C.; (2) pulverizing the low molecular weight polytetrafluoroethylene; and (3) heating the low molecular weight polytetrafluoroethylene pulverized in the step (2). 1. A method for producing low molecular weight polytetrafluoroethylene , comprising:{'sup': 2', '5, '(1) irradiating polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity of 1×10to 7×10Pa·s at 380° C.;'}(2) pulverizing the low molecular weight polytetrafluoroethylene; and(3) heating the low molecular weight polytetrafluoroethylene pulverized in the step (2).2. The production method according to claim 1 ,wherein the heating is performed at a temperature of 50° C. to 300° C.3. The production method according to claim 1 ,wherein the heating is performed at a temperature of 50° C. to 200° C.4. The production method according to claim 1 ,wherein the polytetrafluoroethylene has a standard specific gravity of 2.130 to 2.230.5. The production method according to claim 1 ,wherein both the polytetrafluoroethylene and the low molecular weight polytetrafluoroethylene are in the form of powder.6. The production method according to claim 1 , further comprising:(4) heating the polytetrafluoroethylene up to a temperature that is not lower than the primary melting point thereof to provide a molded article before the step (1),{'sup': '3', 'the molded article having a specific gravity of 1.0 g/cmor higher.'}7. Low molecular weight polytetrafluoroethylene obtainable ...

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Номер записи: 62
28-01-2021 дата публикации

MOLDED ARTICLE HAVING COOLING-LIQUID-CONTACT SURFACE

Номер: US20210024664A1
Автор: Furutani Takahiro, KAMIYA Yusuke, TERADA Junpei
Принадлежит: DAIKIN INDUSTRIES, LTD.

A molded product having a surface that is to be in contact with a coolant, the surface being formed of a crosslinked product of an amorphous fluorine-containing elastomer having a glass transition temperature of 25° C. or less, the fluorine-containing elastomer being a copolymer of: vinylidene fluoride; a fluorine-containing monomer represented by formula (1) below: 1. A molded product having a surface that is to be in contact with a coolant , the surface being formed of a crosslinked product of an amorphous fluorine-containing elastomer having a glass transition temperature of 25° C. or less , the fluorine-containing elastomer being a copolymer of:vinylidene fluoride; {'br': None, 'sup': a', 'b, 'CHX═CXRf\u2003\u2003(1)'}, 'a fluorine-containing monomer represented by formula (1) below{'sup': a', 'b, 'wherein one of Xand Xis H, the other thereof is F, and Rf is a linear or branched fluoroalkyl group having 1 to 12 carbon atoms; and'}another monomer copolymerizable therewith,wherein a molar ratio of units of the vinylidene fluoride to units of the fluorine-containing monomer is 87/13 to 20/80, andunits of the other monomer account for 0 to 50 mol % based on all monomer units, whereinthe fluorine-containing elastomer has an iodine atom or a bromine atom in a total content of 0.01 to 10 wt %, andthe surface of the molded product is to be in contact with a coolant at 100° C. or more when in use.2. (canceled)3. The molded product according to claim 1 , whereinthe coolant comprises an alcohol.4. The molded product according to claim 1 , wherein the molded product is a seal material claim 1 , a tube claim 1 , or a hose.5. The molded product according to claim 1 , for use in a cooling system of an engine claim 1 , a fuel cell claim 1 , or a secondary battery claim 1 , or in a cooling system of equipment used in the field of chemicals claim 1 , medicine claim 1 , food equipment claim 1 , or equipment and parts for energy resource exploration and mining.6. (canceled) The ...

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Номер записи: 63
24-04-2014 дата публикации

HYPERBRANCHED FLUOROELASTOMER ADDITIVE

Номер: US20140114009A1
Автор: Apostolo Marco, Comino Giovanni, Fantoni Matteo
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

The invention pertains to a hyperbranched (per)fluoroelastomer [fluoroelastomer (B)] comprising recurring units derived from a bis-olefin [bis-olefin (OF)] having general formula (I): wherein R, R, R, R, Rand R, equal or different from each other, are H or C-Calkyl; Z is a linear or branched C-Calkylene or cycloalkylene radical, optionally containing oxygen atoms, preferably at least partially fluorinated, or a (per)fluoropolyoxyalkylene radical, said fluoroelastomer (B) having a slope in G′ curve such that the ratio: G′/G′is of less than 10, when determined at 260° C. according to ASTM D4440 standard, wherein G′100 is the storage modulus at a shear rate of 100 rad/sec and G′is the storage modulus at a shear rate of 0.01 rad/sec, to compositions comprising the same, and to a process for their manufacture. 3. The fluoroelastomer (B) of claim 2 , comprising recurring units derived from bis-olefin (OF) claim 2 , from tetrafluoroethylene (TFE) and from perfluoromethylvinylether (MVE) claim 2 , MVE being generally comprised in an amount of 25 to 45% moles claim 2 , with respect to the sum of recurring units derived from TFE and MVE.5. The fluoroelastomer (B) of claim 1 , possessing a slope in G′ curve as a function of shear rate such that the ratio G′/G′is less than 5 when determined at 260° C. according to ASTM D4440 standard.6. The fluoroelastomer (B) of claim 1 , said fluoroelastomer (B) being characterized by the fact that G′exceeds G″ claim 1 , wherein G′is the storage modulus at shear rate J claim 1 , and G″is the loss modulus at same shear rate J claim 1 , said shear rate being comprised between 0.01 and 100 rad/sec claim 1 , when determined at 260° C. according to ASTM D4440 standard.7. The fluoroelastomer (B) according to claim 1 , possessing in its uncured state a solubility in perfluoroheptane at 50° C. of less than 10 g/l.8. A composition comprising at least one fluoroelastomer (B) according to and at least one (per)fluoroelastomer [fluoroelastomer (A)] ...

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Номер записи: 64
01-02-2018 дата публикации

FILM LAYERS AND METHODS FOR FORMING THE SAME

Номер: US20180030225A1
Автор: Altman Carl, Huang Hanjin, Iwazu Takahiro, KERKAR AWDHOOT VASANT, Lee Jong Soo, Xia Tian
Принадлежит: HONEYWELL INTERNATIONAL INC.

A film layer and a method of forming a film layer are provided herein. The film layer includes a first polymer and a second polymer. The first polymer includes the reaction product of chlorotrifluoroethene and vinylidene fluoride utilized in the first polymer in an amount of at least 4 wt. %. The second polymer includes the reaction product of chlorotrifluoroethene and optionally, vinylidene fluoride utilized in the second polymer in an amount of less than 4 wt. %. A multilayer film and a method of forming a multilayer film are also provided herein. In an embodiment, a multilayer film includes a first film layer and a second film layer adjacent and sealed to the first film layer. At least one of the first film layer or the second film layer includes the first polymer and the second polymer. 1. A film layer , comprising: chlorotrifluoroethene, and', 'vinylidene fluoride utilized in said first polymer in an amount of at least 4 wt. % based on a total weight of all reactants utilized to form said first polymer; and, 'a first polymer comprising the reaction product of;'} chlorotrifluoroethene, and', 'optionally, vinylidene fluoride utilized in said second polymer in an amount of less than 4 wt. % based on a total weight of all reactants utilized to form said second polymer., 'a second polymer comprising the reaction product of;'}2. The film layer of claim 1 , wherein said first polymer and said second polymer are homogeneously distributed in said film layer.3. The film layer of claim 1 , wherein said second polymer is further defined as a homopolymer formed from chlorotrifluoroethene.4. The film layer of claim 1 , wherein said second polymer is further defined as a copolymer comprising the reaction product of:chlorotrifluoroethene; andvinylidene fluoride utilized in said second polymer in an amount of less than 4 wt. % based on a total weight of all reactants utilized to form said second polymer.5. A multilayer film claim 1 , comprising: [ chlorotrifluoroethene, and', ' ...

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Номер записи: 65
31-01-2019 дата публикации

INSULATED ELECTRICAL WIRE

Номер: US20190031795A1
Автор: Nonaka Tsuyoshi
Принадлежит:

Provided is an insulated electrical wire having an insulating layer containing a fluororesin, wherein the flexibility is improved while maintaining the heat resistance of the fluororesin. The insulated electrical wire comprises a conductor and an insulating layer covering the periphery of the conductor, the insulating layer containing a fluorine-containing polymer comprising a polymer of a monomer containing one or two or more fluorine-containing monomers represented by the following formula (1): 5. The insulated electrical wire according to claim 1 , wherein the periphery of the conductor is covered with an insulating layer containing a fluorine-containing polymer comprising a copolymer of at least one fluorine-containing monomer represented by the formula (1) and another ethylenically unsaturated compound.6. The insulated electrical wire according to claim 1 , wherein the periphery of the conductor is covered with an insulating layer containing a fluorine-containing polymer comprising a copolymer of at least one fluorine-containing monomer represented by the formula (1) and ethylene.7. The insulated electrical wire according to claim 1 , wherein the fluorine-containing polymer is a copolymer of the fluorine-containing monomer represented by formula (1) and another monomer.8. The insulated electrical wire according to claim 1 , wherein the fluorine-containing polymer is a homopolymer of the fluorine-containing monomer represented by formula (1).9. The insulated electrical wire according to claim 6 , wherein the copolymerization ratio of the ethylene is 50 mol % or less.10. The insulated electrical wire according to claim 1 , wherein the fluorine-containing polymer is thermoplastic. The present invention relates to an insulated electrical wire, and more specifically to an insulated electrical wire suitably used for vehicles, such as automobiles.Fluororesins that have excellent heat resistance and chemical resistance are sometimes used as insulating materials for ...

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Номер записи: 66
04-02-2021 дата публикации

Method for manufacturing fluoropolymer, surfactant for polymerization, use for surfactant, and composition

Номер: US20210032381A1
Автор: Akiyoshi Yamauchi, Chiaki OKUI, Hirokazu Aoyama, Hirotoshi Yoshida, Hiroyuki Sato, Kengo Ito, Kenji Ichikawa, Marina NAKANO, Masahiro Higashi, Masamichi Sukegawa, Moe HOSOKAWA, Satoru Yoneda, Sumi Ishihara, Taketo Kato, Taku Yamanaka, Yohei FUJIMOTO, Yoshinori Nanba, Yosuke Kishikawa
Принадлежит: Daikin Industries Ltd

A method for producing a fluoropolymer which includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer, the surfactant being represented by the general formula (1): CR 1 R 2 R 4 —CR 3 R 5 —X-A, wherein R 1 to R 5 are each H or a monovalent substituent, with the proviso that at least one of R 1 and R 3 represents a group represented by the general formula: —Y—R 6 and at least one of R 2 and R 5 represents a group represented by the general formula: —X-A or a group represented by the general formula: —Y—R 6 ; and A is the same or different at each occurrence and is —COOM, —SO 3 M, or —OSO 3 M. Also disclosed is a surfactant for polymerization represented by the general formula (1), a method for producing a fluoropolymer using the surfactant and a composition including a fluoropolymer and the surfactant.

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Номер записи: 67
24-02-2022 дата публикации

VINYL ALCOHOL POLYMER AND METHOD FOR PRODUCING VINYL ALCOHOL POLYMER

Номер: US20220056169A1
Автор: KUSAKA Yasunari, NAKAJIMA Nami, Niino Junichi, Nishimura Yohei, Yamaguchi Hidehiro
Принадлежит:

A vinyl alcohol-based polymer according to one embodiment of the present invention has an integral value (e) of 0.8 to 20 in the case when a sum of the following integral value (a) to (e) is 100 in a H-NMR spectrum. 1. A vinyl alcohol-based polymer , having a value defined by the following integral value (e) of 0.8 to 20 in the case when a sum of the following integral value (a) to (e) is 100 in a H-NMR spectrum.(a) integral value of peak confirmed at 5.70 to 5.96 ppm(b) integral value of peak confirmed at 5.97 to 6.63 ppm(c) integral value of peak confirmed at 6.64 to 7.55 ppm(d) integral value of peak confirmed at 7.56 to 7.81 ppm(e) integral value of peak confirmed at 7.82 to 8.04 ppm2. The vinyl alcohol-based polymer according to claim 1 , wherein a degree of saponification is 65 to 80 mol % claim 1 , a block character of a remaining ester group is 0.45 to 0.62 claim 1 , and a ratio a1/a2 of an absorbance a1 of a 0.1 mass % aqueous solution at a wavelength of 280 nm and an absorbance a2 of the aqueous solution at a wavelength of 320 nm is 1.6 or less.3. The vinyl alcohol-based polymer according to claim 1 , wherein a ratio (Mw/Mn) of a weight-average molecular weight Mw to a number-average molecular weight Mn is 2.6 to 14.4. The vinyl alcohol-based polymer according to claim 1 , wherein a ratio of diad/triad of a remaining ester group is 0.7 to 1.3 and a ratio of diad/triad of a hydroxyl group is 2.0 to 3.5.5. The vinyl alcohol-based polymer according to claim 1 , wherein a remaining ester group is an acetoxy group.6. The vinyl alcohol-based polymer according to claim 1 , wherein a viscosity of a 4 mass % aqueous solution is 5 to 9 cP.7. The vinyl alcohol-based polymer according to claim 1 , wherein a degree of yellowness (YI) of a 4 mass % aqueous solution is 30 to 80.8. The vinyl alcohol-based polymer according to claim 1 , wherein when an aqueous solution having a concentration of the vinyl alcohol-based polymer of 7 mass % obtained by dissolving at 5° C. for ...

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Номер записи: 68
07-02-2019 дата публикации

POLYTETRAFLUOROETHYLENE FORMED PRODUCT, AND MANUFACTURING METHOD THEREFOR

Номер: US20190040212A1
Автор: Ikeda Kazuaki, Nguyen Hong-Phuc, Yamanaka Taku, YOSHIDA Hirotoshi
Принадлежит:

A polytetrafluoroethylene formed product according to an aspect of the invention contains, as a principal component, a polytetrafluoroethylene having a crosslinked structure and has a PV limit of not less than 1600 MPa·m/min. 1: A polytetrafluoroethylene formed product containing , as a principal component , a polytetrafluoroethylene having a crosslinked structure , whereinthe polytetrafluoroethylene formed product has a PV limit of not less than 1600 MPa m/min.2: The polytetrafluoroethylene formed product according to claim 1 , wherein the polytetrafluoroethylene formed product has a PV limit of not greater than 2500 MPa m/min.3: The polytetrafluoroethylene formed product according to claim 1 , wherein the polytetrafluoroethylene formed product has a pencil hardness of not less than HB.4: The polytetrafluoroethylene formed product according to claim 1 , wherein the polytetrafluoroethylene formed product has an elongation at break of not less than 100%.5: The polytetrafluoroethylene formed product according to claim 1 , wherein the polytetrafluoroethylene formed product is used for a sliding member.6: A manufacturing method for a polytetrafluoroethylene formed product claim 1 , the method comprising an irradiation step of irradiating a forming material containing a polytetrafluoroethylene as a principal component with ionizing radiation under a condition of no oxygen and of a temperature equal to or higher than a crystalline melting point of the polytetrafluoroethylene claim 1 , wherein{'sup': '5', 'the polytetrafluoroethylene has a melt viscosity at 380° C. of not greater than 7×10Pa·s, and'}the polytetrafluoroethylene formed product has a PV limit of not less than 1600 MPa·m/min.7: The manufacturing method for the polytetrafluoroethylene formed product according to claim 6 , wherein the polytetrafluoroethylene has a number average molecular weight of not greater than 600 thousand. The present invention relates to a polytetrafluoroethylene formed product and a ...

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Номер записи: 69
07-02-2019 дата публикации

Method for manufacturing polytetrafluoroethylene formed product, and polytetrafluoroethylene formed product

Номер: US20190040218A1
Автор: Hirotoshi Yoshida, Hong-Phuc NGUYEN, Kazuaki Ikeda, Taku Yamanaka
Принадлежит: Daikin Industries Ltd, SUMITOMO ELECTRIC FINE POLYMER INC

A manufacturing method for a polytetrafluoroethylene formed product according to an aspect of the invention is a manufacturing method for a polytetrafluoroethylene formed product, the method including a step of irradiating a forming material containing a polytetrafluoroethylene as a principal component with ionizing radiation, wherein the polytetrafluoroethylene has a melt viscosity at 380° C. of not greater than 7×105 Pa·s.

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Номер записи: 70
07-02-2019 дата публикации

POLYMER COMPOSITION COMPRISING A FIRE SUPPRESSANT

Номер: US20190040234A1
Автор: WESTIN Fredrik
Принадлежит:

The present invention refers to a polymer composition comprising a polymer and a fire suppressant in form of a mixed salt based on a) at least one mono-, di- and/or tri-carboxylic acid, b) at least one polyphosphoric, pyrophosphoric and/or phosphoric acid, c) a hydroxide or a salt of an alkali or an alkaline earth metal, where a) and c) form a carboxylate and b) and c) form a phosphate and optionally d) a carbonate of an alkali or an alkaline earth metal. The mixed salt have an average particle size in the range of 0.2 to 50 μm and a crystalline water content of at least 5% by weight. The mixed salt is present in an amount of 5-70% by weight of the total composition. The polymer composition might further comprise one or more additives. 1. A polymer composition comprising a polymer and a fire suppressant in form of a mixed salt based ona) at least one mono-, di- and/or tri-carboxylic acid,b) at least one polyphosphoric, pyrophosphoric and/or phosphoric acid, 'where a) and c) form a carboxylate and b) and c) form a phosphate, and', 'c) a hydroxide or a salt of an alkali or an alkaline earth metal,'} the mixed salt having an average particle size in the range of 0.2 to 50 μm and a crystalline water content of at least 5% by weight,', 'the mixed salt being present in an amount of 5 to 70% by weight of the total composition and', 'the composition optionally comprises one or more additives., 'd) optionally, a carbonate of an alkali or an alkaline earth metal,'}2. The composition according to claim 1 , wherein the polymer is thermoplastic.3. The composition according to claim 1 , wherein the polymer is a plasticised polyvinyl halide.4. The composition according to claim 1 , wherein the polymer is a polyvinyl halide comprising plasticiser in an amount of 10 to 50% by weight.5. The composition according to claim 1 , wherein a) is at least one C-Cmono- claim 1 , di- and/or tri-carboxylic acid.6. The composition according to claim 1 , wherein a) is at least one C-Cdi- ...

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Номер записи: 71
12-02-2015 дата публикации

Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Products Obtained Therefrom and Reaction of the Expanded Products

Номер: US20150045524A1
Автор: Jack J. Hegenbarth, Ping Xu, Xin Kang Chen
Принадлежит: WL Gore and Associates Inc

A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.

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Номер записи: 72
06-02-2020 дата публикации

PVC Plasticizers and Methods for Making Thereof

Номер: US20200040160A1
Автор: Lange Jos H. M., MILLER H. Jerrold, Tian Jason, Wei Xiangyun
Принадлежит: Kraton Polymers LLC

A plasticized PVC composition free of phthalate and having low color is disclosed. The composition comprises a morpholide plasticizer prepared from a fatty acid selected from a tall oil fatty acid, a tall oil fatty acid monomer derived therefrom, and mixtures thereof. The fatty acid has a total carbon footprint of <95% of the total carbon footprint of a fatty acid obtained from a vegetable oil. The morpholide is prepared from the reaction of a tall oil fatty acid with morpholine in the presence of a catalyst. 1. A morpholide composition , comprising a reaction product of a morpholine compound and a fatty acid selected from a tall oil fatty acid , a tall oil fatty acid monomer derived therefrom , and mixtures thereof;wherein the fatty acid comprises 20-55 wt. % of oleic acid and 20-55 wt. % of linoleic acid, and optionally 0-15 wt. % of linolenic acid;wherein the fatty acid has a total carbon footprint of <95% of the total carbon footprint of a fatty acid obtained from a vegetable oil; andwherein the morpholide composition has a Gardner color (neat) of less than 3.2. The morpholide composition of claim 1 , wherein the fatty acid has an average carbon footprint of less than 500 gram COequivalents per kg of the fatty acid3. The morpholide composition of claim 1 , wherein the morpholide composition has an acid number of less than 12 mg KOH/g.4. The morpholide composition of claim 1 , wherein the morpholide composition has an amine value of less than 1 mg KOH/g.5. The morpholide composition of claim 1 , wherein the fatty acid is a tall oil fatty acid monomer claim 1 , and wherein the tall oil fatty acid monomer comprises iso-oleic acid.6. A plasticizer composition comprising the morpholide composition of .7. A plasticized polyvinyl chloride (PVC) composition comprising the plasticizer composition of .8. The plasticized PVC composition of claim 7 , having a weight loss after 48 hours of less than 1% in an exudation test.9. The plasticized PVC composition of claim 7 , ...

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Номер записи: 73
18-02-2021 дата публикации

Enzyme forming mesoporous assemblies embedded in macroporous scaffolds

Номер: US20210047630A1
Автор: Daniel Aneshansley, Emmanuel Giannelis, Larry P. Walker, Stephane C. Corgie, Xiaonan Duan
Принадлежит: CORNELL UNIVERSITY

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin, remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion.

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Номер записи: 74
15-02-2018 дата публикации

HEAT REFLECTIVE COATING

Номер: US20180044775A1
Автор: Malinoski Jon Michael, MHETAR Vijay, Zhang Xi
Принадлежит:

Cables including a heat-reflective layer are disclosed. The heat-reflective layer includes a polymeric layer and metal particles. The metal particles are on or near the exposed surface of the heat-reflective layer. Methods of making a heat-reflective layer and cables including a heat-reflective layer rare also disclosed. 1. A cable comprising:one or more conductors; anda heat-reflective layer surrounding the one or more conductors, the heat-reflective layer comprising a polymeric layer and metal particles; andwherein the metal particles are disposed on or near the exposed surface of the heat-reflective layer.2. The cable of claim 1 , wherein the metal particles comprise one or more of aluminum claim 1 , copper claim 1 , gold claim 1 , silver claim 1 , tin claim 1 , and alloys thereof.3. The cable of claim 1 , wherein the metal particles comprise one or more metal oxides of titanium claim 1 , iron claim 1 , and cobalt.4. The cable of claim 1 , wherein the metal particles are deposited on the polymeric layer by vacuum deposition or sputtering.5. The cable of claim 1 , wherein the metal particles are dispersed through the polymeric layer.6. The cable of claim 1 , wherein the polymeric layer comprises one or more of polyvinyl chloride (“PVC”) claim 1 , polypropylene claim 1 , polyolefins claim 1 , polyethylene claim 1 , ethylene-vinyl acetate (“EVA”) claim 1 , polyurethanes claim 1 , epoxies claim 1 , tetra-fluoroethylene claim 1 , hexafluoropropylene claim 1 , fluoropolymer claim 1 , acrylic claim 1 , nylon claim 1 , and polyester.7. The cable of claim 1 , wherein the heat-reflective layer further comprises an anti-scuffing coating.8. The cable of claim 1 , wherein the heat-reflective layer is processed with a shim roller.9. The cable of claim 1 , wherein the heat-reflective layer further comprises conductive particles claim 1 , and wherein the conductive particles are within the heat-reflective layer.10. The cable of claim 9 , wherein the conductive particles comprise ...

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Номер записи: 75
15-02-2018 дата публикации

Separator for a non-aqueous secondary battery, and non-aqueous secondary battery

Номер: US20180047962A1
Автор: Susumu Honda
Принадлежит: Teijin Ltd

A separator for a non-aqueous secondary battery, the separator including: a porous substrate; and an adhesive porous layer provided on one or both sides of the porous substrate and including a polyvinylidene fluoride-based resin, the adhesive porous layer would exhibit a ratio of an area intensity of a β-phase-crystal-derived peak of the polyvinylidene fluoride-based resin to a sum of an area intensity of an α-phase-crystal-derived peak of the polyvinylidene fluoride-based resin and the area intensity of the β-phase-crystal-derived peak of the polyvinylidene fluoride-based resin of from 10% to 100% when an x-ray diffraction spectrum is obtained by performing measurement by an x-ray diffraction method.

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Номер записи: 76
15-02-2018 дата публикации

AN OXYGEN REDUCTION CATALYST ELEMENT, METHOD OF ITS PRODUCTION, AND USES THEREOF

Номер: US20180048010A1
Автор: Eshed Lior, Shechter Ronen Itzhak, WIJSBOOM Yair Haim
Принадлежит: EMEFCY LTD.

Provided is an oxygen reduction catalyst element including a water impermeable, gas permeable membrane coated on at least one a portion thereof with a porous layer including a mixture of a non-ionic polymer and at least one oxygen reduction catalytic particulate material. Also provided herein is a method of producing the oxygen reduction catalyst element, a cathode including the same and a fuel cell making use of such cathode. 1. An oxygen reduction catalyst element comprising a water impermeable , gas permeable membrane coated on at least one a portion thereof with a porous layer comprising a mixture of a non-ionic polymer and at least one oxygen reduction catalytic particulate material.2. The catalyst element of claim 1 , wherein said non-ionic polymer comprises a polymer selected from the group consisting of: polyvinyl chloride (PVC) claim 1 , polyvinylidene difluoride (PVDF) claim 1 , polysulfone (PSU) claim 1 , and any combination thereof.3. (canceled)4. The catalyst element of claim 1 , wherein said oxygen reduction catalytic particulate material comprises a metal entity.5. The catalyst element of claim 4 , wherein said metal entity is in a form selected from pure metal claim 4 , metal alloy claim 4 , metal oxide and organometallic material.6. The catalyst element of claim 1 , comprising a conductivity enhancer selected from the group consisting of graphite powder claim 1 , graphite fibers claim 1 , carbon black claim 1 , activated carbon claim 1 , graphite whiskers claim 1 , carbon nano-tubes and combination of same.7. The catalyst element of claim 1 , wherein said conductivity enhancer comprises activated carbon cloth.8. The catalyst element of claim 1 , wherein said porous layer comprises pores in the range between 0.1 μm and 10 μm.9. The catalyst element of claim 1 , wherein the water impermeable and gas permeable membrane comprises a polymer selected from the group consisting of polyolefin and/or a polyester polymer.10. The catalyst element of claim 1 , ...

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Номер записи: 77
14-02-2019 дата публикации

METHOD OF PREPARING VINYL CHLORIDE-BASED POLYMER

Номер: US20190048110A1
Автор: AHN Seong Yong, Ha Hyun Kyou, KIM Kun Ji, LEE Se Woong
Принадлежит:

The present invention relates to a method of preparing a vinyl chloride-based polymer, which includes inducing the nucleation of particles by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); and preparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization). In the preparation method, a vinyl chloride-based polymer having a uniform molecular weight distribution and a desired number average molecular weight may be provided by controlling a degree of polymerization of a vinyl chloride-based polymer prepared in such a way that dispersibility is ensured by adjusting the point of time to add the mercaptan-based chain transfer agent to the point of time to reach a specific conversion rate of the preliminary polymerization. 1. A method of preparing a vinyl chloride-based polymer comprising:forming particle nuclei by adding a mercaptan-based chain transfer agent to a monomer composition including a vinyl chloride-based monomer and a preliminary polymerization initiator (preliminary polymerization); andpreparing a polymer by mixing a vinyl chloride-based monomer and the particle nuclei and adding a main polymerization initiator (main polymerization).3. The method of claim 2 , wherein the mercaptan-based chain transfer agent includes one or more selected from the group consisting of 2-mercaptoethanol claim 2 , 3-mercapto-1 claim 2 ,2-propanediol claim 2 , methyl mercaptodecanoate claim 2 , and dimethyl 9-mercaptooctadecyl-1 claim 2 ,18-dioate.4. The method of claim 1 , wherein the mercaptan-based chain transfer agent is added when a conversion rate of the preliminary polymerization is 3 to 8%.5. The method of claim 1 , wherein the mercaptan-based chain transfer agent is added in an amount of 0.01 to 0.1 parts by weight with respect to 100 parts by weight of ...

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Номер записи: 78
22-02-2018 дата публикации

STIMULI RESPONSIVE MATERIALS, METHODS OF MAKING, AND METHODS OF USE THEREOF

Номер: US20180050524A1
Автор: Sun Luyi, Zeng Songshan
Принадлежит:

A mechanochromic system comprising a first inorganic/polymer composite layer; and a first elastomer layer bonded to the composite layer to form a composite/elastomer assembly, methods of making, and methods of use thereof are provided. 1. A mechanochromic system , comprising:a first inorganic/polymer composite layer; anda first elastomer layer bonded to the composite layer to form a composite/elastomer assembly.2. The system of claim 1 , wherein the polymer comprises polyvinylalcohol claim 1 , polyvinyl butyral claim 1 , polycarbonate claim 1 , poly(methyl methacrylate) claim 1 , polyacrylates claim 1 , polystyrene sulfonate claim 1 , polyacrylic acid claim 1 , polyethylenimine claim 1 , any non-crosslinked polymer claim 1 , or a combination comprising at least one of the foregoing.3. The system of claim 1 , wherein the polymer is water soluble or organic soluble.4. The system of claim 1 , wherein the elastomer comprises polyurethane rubber claim 1 , polyacrylate rubber claim 1 , acrylic rubber claim 1 , natural rubber claim 1 , fluoroelastomer claim 1 , ethylene-propylene rubber (EPR) claim 1 , ethylene-butene rubber claim 1 , ethylene-propylene-diene monomer rubber (EPDM) claim 1 , epichlorohydrin rubber claim 1 , acrylate rubbers claim 1 , hydrogenated nitrile rubber (HNBR) claim 1 , silicone elastomers claim 1 , polyether block amides claim 1 , ethylene vinyl acetate claim 1 , styrene-butadiene-styrene (SBS) claim 1 , styrene-butadiene rubber (SBR) claim 1 , styrene-(ethylene-butene)-styrene (SEBS) claim 1 , acrylonitrile-butadiene-styrene (ABS) claim 1 , acrylonitrile-ethylene-propylene-diene-styrene (AES) claim 1 , styrene-isoprene-styrene (SIS) claim 1 , styrene-(ethylene-propylene)-styrene (SEPS) claim 1 , methyl methacrylate-butadiene-styrene (MBS) claim 1 , high rubber graft (HRG) claim 1 , polydimethylsiloxane (PDMS) claim 1 , or a combination comprising at least one of the foregoing.5. The system of claim 4 , wherein the fluoroelastomer comprises a ...

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Номер записи: 79
13-02-2020 дата публикации

COMPOSITE RESIN MATERIAL AND MOLDED BODY

Номер: US20200048376A1
Автор: ITAMI Hirotaka, Miyoshi Kentaro, NAKAGAWA Takafumi, NINOMIYA Kazuya, Sakai Toru, Takada Katsunori, Yamamoto Hirokazu
Принадлежит:

Provided is a composite resin material that yields a resin molded body which has not only a low volume resistivity but also excellent electroconductivity and/or antistatic properties and whose volume resistivity is unlikely to be increased even when subjected to, for example, a washing treatment with ozone water. The composite resin material contains a polychlorotrifluoroethylene and carbon nanotubes and has an average particle diameter of 500 μm or smaller. 1. A composite resin material , comprising a polychlorotrifluoroethylene and carbon nanotubes and having an average particle diameter of 500 μm or smaller and a specific surface area of 1.0 to 6.0 m/g as measured by a BET method.2. The composite resin material according to claim 1 , comprising the carbon nanotubes in an amount of 0.01 to 2.0% by mass based on a total amount of the composite resin material.3. (canceled)4. The composite resin material according to claim 1 , having a volume resistivity of 1.0×10Ω·cm or lower as measured in accordance with JIS K6911.5. The composite resin material according to claim 1 , wherein the polychlorotrifluoroethylene has a flow value of 0.8 cm/sec or higher.6. A molded body produced using the composite resin material according to .7. The molded body according to claim 6 , wherein the carbon nanotubes have an average length of 50 μm or longer.8. The molded body according to claim 6 , having a shape selected from the group consisting of a plate shape claim 6 , a rod shape claim 6 , a film shape claim 6 , a sheet shape claim 6 , an aggregate shape claim 6 , and a tubular shape. The present invention relates to: a composite resin material comprising a polychlorotrifluoroethylene and carbon nanotubes; and a molded body produced using the composite resin material.In the fields of semiconductor components, automobile parts and the like, development and practical application of a novel electroconductive material obtained by forming a composite between a resin material and a carbon ...

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Номер записи: 80
10-03-2022 дата публикации

PLASTISOL COMPOSITION COMPRISING A MIXTURE OF VARIOUS PLASTICIZERS

Номер: US20220073756A1
Автор: Bederke Nadine, Caruso Alesandro, Johann Wolfgang
Принадлежит:

The present invention relates to a plastisol composition comprising polyvinyl chloride and a mixture of various plasticizers, and to the use thereof as an underbody coating and for sealing seams. 1. A plastisol composition , comprising polyvinyl chloride and a mixture of alkyl sulfonic acid phenyl ester , alkyl disulfonic acid diphenyl ester , and di-octyl adipate as plasticizers.2. The plastisol composition according to claim 1 , wherein the composition is free from phthalate-containing compounds.3. The plastisol composition according to claim 1 , wherein the amount of plasticizers in the composition is at least 20 wt. % claim 1 , based on total weight of the composition.4. The plastisol composition according to claim 1 , wherein the alkyl sulfonic acid phenyl ester and alkyl disulfonic acid diphenyl ester are present in the composition in a weight ratio of 5:1 to 10:1.5. The plastisol composition according to claim 1 , wherein the alkyl sulfonic acid phenyl ester and/or the alkyl disulfonic acid diphenyl ester have a chain length of 10 to 21 carbon atoms.6. The plastisol composition according to claim 1 , wherein the proportion of alkyl sulfonic acid phenyl ester in the composition is 3 to 35 wt. % based on the total weight of the composition in each case.7. The plastisol composition according to claim 1 , wherein the proportion of alkyl disulfonic acid diphenyl ester in the composition is 0.5 to 10 wt. % claim 1 , based on the total weight of the composition.8. The plastisol composition according to claim 1 , wherein the proportion of di-octyl adipate in the composition is 5 to 40 wt. % claim 1 , based on the total weight of the composition.9. The plastisol composition according to claim 1 , wherein the proportion of polyvinyl chloride in the composition is 5 to 50 wt. % claim 1 , based on the total weight of the composition in each case.10. The plastisol composition according to claim 1 , wherein the composition comprises:3 to 35 wt. % alkyl sulfonic acid phenyl ...

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Номер записи: 81
01-03-2018 дата публикации

PVDF POWDER FOR LIQUID SLURRIES

Номер: US20180056247A1
Автор: Kosar Walter P.
Принадлежит:

The invention relates to polymer powders, preferably fluoropolymer powders such as polyvinylidene fluoride (such as Kynar® resins from Arkema Inc.), polyvinyl fluoride, and poly-ethylene-co-chlorotrifluoroethylene, useful for a high-solids liquid slurry. The PVDF has a narrow average particle size of from 20 to 100 microns, with less than 20 weight percent of particles outside this range. This powder can be used to form slurries having from 30 to 60 weight percent solids, the liquid slurries formed being free-flowing. The free-flowing slurries are useful in forming membranes in a thermally induced phase separation (TIPS) process. 1. A stable liquid dispersion slurry comprising:a) from 30 to 50 weight percent of fluoropolymer particles, wherein said particles have a weight average particle size of from 20 to 200 microns, with at least 60 weight percent of the particles being within this range, andb) a latent solvent,c) optionally, from 0 to 25 weight percent of one or more additives,wherein said liquid dispersion slurry is free-flowing at room temperature.2. The liquid dispersion slurry of claim 1 , wherein said fluoropolymer is selected from a polyvinylidene fluoride homopolymer claim 1 , a polyvinylidene fluoride copolymer having at least 60 weight percent of vinylidene fluoride monomer units claim 1 , a vinyl fluoride homo polymer claim 1 , a polyvinyl fluoride copolymer having at least 60 weight percent of vinyl fluoride monomer units claim 1 , tetrafluroethylene (ETFE) claim 1 , and ethylene-co-chloro trifluoroethylene (ECTFE).3. The liquid dispersion of claim 1 , wherein said fluoropolymer particles have an average particle size of from 25 to 150 microns claim 1 , with at least 60 weight percent of the particles being within this range.4. The liquid dispersion of claim 3 , wherein said fluoropolymer particles have an average particle size of from 25 to 120 microns claim 3 , with at least 70 weight percent of the particles being within this range.5. The liquid ...

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Номер записи: 82
01-03-2018 дата публикации

HEAT-INSULATING TRANSPARENT POLYVINYL CHLORIDE SHEET HAVING EXCELLENT WEATHERABILITY AND PROCESS FOR PRODUCING THE SAME

Номер: US20180056637A1
Автор: HUANG Ying-Te, Lai Chen-Ho, LIAO Te-Chao, LIN Chao-Hsien, MA Teng-Ko, YUAN Ching-Yao
Принадлежит:

A heat-insulating transparent PVC sheet is formed from a PVC substrate having a thickness of 0.02-2.0 mm and contains heat-insulation pastes evenly distributed over the PVC substrate, since the heat-insulation paste contains an essential component of wolfram cesium powder (WCs) with a chemical formula of CsNWOCland having a particle size of 0.005-2 μm, the heat-insulating transparent PVC sheet has an excellent weatherability, and particularly before and after tested in 300-hour service life in line with ASTM G-154 specification, has a physical property of weatherability decay rate (%) small than 4%. 1. A heat-insulating transparent polyvinyl chloride sheet , having a thickness of ranging from 0.02 mm to 2.0 mm , before and after tested in 300-hour service life in line with ASTM G-154 specification , having a physical property of weatherability decay rate (%) small than 4% , and formed from a PVC mixture including (a) 100 PHR of a polyvinyl chloride resin; (b) 0.1-60 PHR of a plasticizer; (c) 1-10 PHR of epoxidized soybean oil; (d) 0.1-10 PHR of a stabilizer; (e) 0.05-5.0 PHR of an ultraviolet absorber; (f) 0.05-0.2 PHR of a coupling agent; and (g) 5.5-7.5 PHR of a heat-insulation paste;wherein the heat-insulation paste has a particle size ranged from 40 nm to 110 nm and contains the following components summed up to 100 wt %:{'sub': X', 'Y', '3-Z', 'C, 'claim-text': {'br': None, 'X≦1.0;Y≦1.0;Y/X≦1.0;Z≦0.6; and C≦0.1;'}, '(g1) a wolfram cesium powder (WCs) with a chemical formula of CsNWOClof 10-18 wt %; where Cs is cesium; N is tin (Sn) or antimony (Sb) or bismuth (Bi); W is wolfram; O is oxygen; and X, Y, Z, C are all positive numbers, with the following relationship satisfied(g2) a dispersant of 2-5 wt %; and(g3) a plasticizer of 77-88 wt %.2. The heat-insulating transparent polyvinyl chloride sheet as claimed in claim 1 , wherein the wolfram cesium powder (WCs) having a particle size ranged from 0.005 μm to 2 μm.3. The heat-insulating transparent polyvinyl ...

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Номер записи: 83
15-05-2014 дата публикации

METHOD FOR THE PRODUCTION OF TERPOLYMERS BASED ON VDF, TRFE AND CFE, OR CTFE

Номер: US20140135464A1
Автор: Bauer Francois
Принадлежит: PIEZOTECH

A process for manufacturing terpolymers by polymerization of VDF (vinylidene difluoride), TrFE (trifluoroethylene), and CFE (1-chloro-1-fluoroethylene) or CTFE (chlorotrifluoroethylene) monomers in the presence of a radical polymerization initiator, characterized in that: 112.-. (canceled)13. A terpolymer composed of x mol % of VDF (vinylidene difluoride) , y mol % of TrFE (trifluoroethylene) and (100−x−y) mol % of CFE (1-chloro-1-fluoro-ethylene) or CTFE (chlorotrifluoroethylene) , where:x is between 30 and 80,y is between 5 and 60,and where the sum of x and y is between 80 and 97.14. The terpolymer as claimed in claim 13 , wherein said terpolymer has an average molecular weight of greater than 400 000.15. The terpolymer as claimed in claim 13 , wherein x is between 40 and 70.16. The terpolymer as claimed in claim 13 , wherein y is between 20 and 50.17. The terpolymer as claimed in claim 13 , wherein the sum of x and y is between 90 and 95.18. The terpolymer as claimed in claim 13 , wherein said terpolymer is composed of 61.8 mol % of VDF claim 13 , 29.8 mol % of TrFE and 8.5 mol % of CFE.19. The terpolymer as claimed in claim 13 , said terpolymer being in the form of powder claim 13 , free of crust or skin.20. In actuator systems claim 13 , micropumps or capacitors comprising a polymer claim 13 , the improvement wherein the polymer is a terpolymer as claimed in .21. The terpolymer as claimed in claim 13 , said terpolymer being manufactured by polymerization of VDF claim 13 , TrFE claim 13 , and CFE or CTFE monomers in the presence of a radical polymerization initiator claim 13 , said process comprising the following steps:i) an initial mixture of VDF and of TrFE, free of CFE and of CTFE, is fed into an autoclave,ii) the initiator mixed with water is injected into the autoclave so as to achieve, inside the autoclave, a pressure at least equal to 80 bar, in order to form a suspension of VDF and TrFE monomers in water,iii) a secondary mixture constituted of VDF, TrFE ...

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Номер записи: 84
21-02-2019 дата публикации

VINYL CHLORIDE-BASED POLYMER COMPOSITION AND METHOD FOR PRODUCING THE SAME

Номер: US20190055331A1
Автор: BAE Heung Kwon, LEE Hyun Min, LEE Jung Rae, YOUK Kyung Seog
Принадлежит:

The present invention relates to a vinyl chloride-based polymer composition and a method for producing the same, and more particularly, to a vinyl chloride-based polymer composition including a vinyl chloride-based polymer and a plasticizer, wherein the vinyl chloride-based polymer includes a higher fatty acid having 10 to 18 carbon atoms in an amount of more than 0.05 parts by weight to less than 2.0 parts by weight, based on 100 parts by weight of the vinyl chloride-based polymer. 1. A vinyl chloride-based polymer composition comprising:a vinyl chloride-based polymer; and a plasticizer,wherein the vinyl chloride-based polymer includes a higher fatty acid having 10 to 18 carbon atoms in an amount of more than 0.05 parts by weight and less than 2.0 parts by weight, based on 100 parts by weight of the vinyl chloride-based polymer;a Bingham yield stress under an external force increasing condition is more than 111 Pa and less than 385 Pa; a Bingham yield stress under an external force decreasing condition is more than 97 Pa and less than 362 Pa; and a difference in Bingham yield stress value between the external force increasing condition and the external force decreasing condition is more than 0 Pa and 35 Pa or less.2. The vinyl chloride-based polymer composition of claim 1 , wherein the vinyl chloride-based polymer comprises 50 to 100 wt % of a repeat unit derived from a vinyl chloride monomer and 0 to 50 wt % of a repeat unit derived from a vinyl-based monomer.3. The vinyl chloride-based polymer composition of claim 1 , wherein the higher fatty acid is included in a mixed state on a three-dimensional network of the vinyl chloride-based polymer.4. The vinyl chloride-based polymer composition of claim 1 , wherein the higher fatty acid comprises at least one functional group or bond selected from the group consisting of at least one hydroxyl group claim 1 , at least one unsaturated bond claim 1 , and at least two carboxyl groups.5. The vinyl chloride-based polymer ...

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Номер записи: 85
01-03-2018 дата публикации

COPOLYMER, METHOD FOR ITS PRODUCTION, WIRE COATING RESIN MATERIAL AND ELECTRIC WIRE

Номер: US20180061522A1
Автор: AIDA Shigeru, Ataku Masakazu, Kakiuchi Toshifumi, NAKAJIMA Yoji
Принадлежит: Asahi Glass Company, Limited

To provide an ETFE copolymer and a wire coating resin material capable of forming a coating layer which is excellent in stress cracking resistance under a high temperature and which has a high heat resistance temperature, and an electric wire having a coating layer which is excellent in stress cracking resistance under a high temperature and which has a high heat resistance temperature. A copolymer comprising structural units derived from ethylene, structural units derived from tetrafluoroethylene, and structural units derived from a third monomer, wherein in an elution curve obtained by a temperature rising elution fractionation method with respect to the copolymer, a ratio (L/H) of a proportion (L: area %) of components with elution temperatures of from 190 to 200° C. to a proportion (H: area %) of components with elution temperatures of at least 205° C., and a proportion (M: mol %) of structural units derived from the third monomer based on all structural units of the copolymer, satisfy a relation of log (L/H)/M≧0.90. 1. A copolymer comprising structural units derived from ethylene , structural units derived from tetrafluoroethylene and structural units derived from a third monomer , wherein in an elution curve obtained by a temperature rising elution fractionation method with respect to the copolymer , a ratio (L/H) of a proportion (L: area %) of components with elution temperatures of from 190 to 200° C. to a proportion (H: area %) of components with elution temperatures of at least 205° C. , and a proportion (M: mol %) of structural units derived from the third monomer based on all structural units of the copolymer , satisfy a relation of the following formula (I) ,{'br': None, 'i': L/H', 'M≧, 'log()/0.90\u2003\u2003(I)'}2. The copolymer according to claim 1 , wherein the proportion of structural units derived from tetrafluoroethylene based the total of structural units derived from ethylene and structural units derived from tetrafluoroethylene claim 1 , is ...

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Номер записи: 86
22-05-2014 дата публикации

NOVEL FLUORINATED UNSATURATED COMPOUND AND POLYMERS OBTAINABLE THEREFROM

Номер: US20140142239A1
Автор: Monzani Cristiano, Tortelli Vito
Принадлежит: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

A compound of formula CF═CFCFOSFand polymers comprising recurring units deriving from CF═CFCFOSFare disclosed as well as processes for their preparation. 1. A compound of formula CF═CFCFOSF.2. Process for the preparation of the compound of comprising reacting SOFwith CF═CFCFOSOF in the presence of a fluoride catalyst.3. A polymer comprising recurring units derived from CF═CFCFOSF.4. Polymer according to further comprising recurring units derived from at least one ethylenically unsaturated monomer.5. Polymer according to wherein the ethylenically unsaturated monomer is selected from a fluorinated and/or a non-fluorinated monomer.7. Polymer according to wherein the non-fluorinated monomer is selected from the group consisting of: C-Colefins; C-Cchloroolefins; acrylic- or methacrylic monomers of formula CH═CRRin which Ris chosen from hydrogen and the methyl group and Ris the —CO—Rgroup in which Ris chosen from the —OH group and the —O—Rgroups with Rchosen from the linear or branched alkyl groups containing from 2 to 18 carbon atoms optionally bearing one or more —OH group.8. Polymer according to claim 3 , wherein the amount of recurring units derived from CF═CFCFOSFranges from 0.1 to 99.9 mole %.9. Process for the preparation of a polymer of comprising the step of polymerizing the compound of formula CF═CFCFOSFand optionally at least one ethylenically unsaturated monomer in the presence of a polymerization initiator.10. Process according to wherein the polymerization initiator is a radical polymerization initiator.11. An article comprising the polymer of .12. A method for the preparation of a film claim 3 , hose claim 3 , pipe claim 3 , tube claim 3 , cable claim 3 , wire insulation claim 3 , fitting claim 3 , molded seal claim 3 , gasket claim 3 , o-ring claim 3 , bearing claim 3 , coating claim 3 , fiber claim 3 , or filtration membrane claim 3 , the method comprising forming a polymer of into the shape of a film claim 3 , hose claim 3 , pipe claim 3 , tube claim 3 , ...

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Номер записи: 87
27-02-2020 дата публикации

BIOMOLECULE-FUNCTIONALISED PVC AND PRODUCTION METHOD THEREOF

Номер: US20200062872A1
Автор: Acevedo Marcela Urzúa, Figueroa Rafael Martines, Rocuant Carolina Sandoval, Zobeiri Mehrdad Yazdani-Pedram
Принадлежит: Universidad De Chile

The present invention relates to the medical industry. In particular, it is related to a polyvinyl chloride polymer (PVC) functionalized for medical use, which is flexible and compatible with blood. Specifically, this invention is related to a biomolecule-functionalized PVC and its production method, in order to produce a flexible and blood-compatible polymer for medical use. 1. A method for producing a functionalized polyvinyl chloride (PVC) , CHARACTERIZED in that it comprises the following steps:i. mixing a PVC of molecular weight of less than 200,000 g/mol with one or more amino acids (Aa) selected from the group of amino acids having hydropathic index between −3.5 and 1.8 and a catalyst selected from the group of alkaline carbonates having a molar ratio selected from 1:1:1 to 2:2:1, in a dissolution solvent and under inert atmosphere;ii. stirring the mixture at 1,000 rpm, keeping under a constant temperature between 50° C. and 120° C. for between 20 and 120 minutes;iii. precipitating the polymer in a precipitation solvent.iv. centrifuging between 5,000 and 12,000 rpm for 10 to 60 minutes at 25° C. temperature;v. purifying the functionalized polymer by dissolving in a dissolution solvent and precipitating in a precipitation solvent.2. The method for producing a functionalized PVC according to claim 1 , CHARACTERIZED in that the catalyst used in step (i) is selected from the group of alkaline carbonates such as lithium carbonate (LiCO) claim 1 , sodium carbonate (NaCO) and potassium carbonate (KCO).3. The method for producing a functionalized PVC according to claim 1 , CHARACTERIZED in that the group of amino acids (Aa) with hydropathic index between −3.5 and 1.8 used in step i) are selected from amino acids Gly or β-Ala.4. The method for producing a functionalized PVC according to claim 1 , CHARACTERIZED in that the dissolution solvent used in steps i) and v) is selected from dimethyl sulfoxide (DMSO) anhydrous claim 1 , cyclohexanone claim 1 , dichlorobenzene ...

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Номер записи: 88
11-03-2021 дата публикации

HIGH SOLIDS, SURFACTANT-FREE FLUOROPOLYMER

Номер: US20210070897A1
Автор: Goldbach James T., Kappler Patrick, STULIGROSS John
Принадлежит:

The invention relates to a low coagulum fluoropolymer latex containing little or no surfactant, and having a high fluoropolymer solids content. The polymerization is run at temperatures somewhat greater than typically used. The latex can be dried into a solid resin, in which little or no surfactant is present, without using an ion exchange, washing, or other added unit operation. The invention also relates to the process for forming the high solids, latex, using little or no surfactant. 1. A low coagulum fluoropolymer emulsion composition comprising at least 26 weight percent of fluoropolymer solids in the emulsion , and less than 0.01 weight percent of surfactant based on the weight of fluoromonomers and less than 11% by weight coagulum.2. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein the level of fluoropolymer solids is greater than 30 weight percent of the composition.3. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein the level of fluoropolymer solids is from 26 to 40 weight percent.4. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein the emulsion is storage stable.5. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein said fluoropolymer comprises at least 70 weight percent of vinylidene fluoride monomer units.6. The low coagulum fluoropolymer emulsion composition of claim 1 , further comprising from 100 ppm to 10 claim 1 ,000 ppm of one or more ionic or ionizable initiators.7. The low coagulum fluoropolymer emulsion composition of claim 6 , wherein said initiator(s) comprise at least one persulfate initiator.8. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein the yellowing index is less than 11 as measured after 10 minutes at 230 C according to ASTM E313-15.10. The low coagulum fluoropolymer emulsion composition of claim 1 , wherein the level of surfactant is zero.11. A process for forming a low coagulum fluoropolymer emulsion claim 1 , ...

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Номер записи: 89
28-02-2019 дата публикации

Continuous Process for Producing Electrochemical Cells

Номер: US20190067732A1
Автор: Jang Bor Z., Zhamu Aruna
Принадлежит: Nanotek Instruments, Inc.

A process for producing an electrochemical cell, comprising: (A) continuously depositing a wet cathode active material mixture onto a surface of a cathode current collector to form a cathode electrode, wherein the wet cathode active material mixture contains 30% to 85% by volume of a cathode active material and 0% to 15% by volume of a conductive additive dispersed in a first liquid or polymer gel electrolyte; (B) continuously depositing a wet anode active material mixture onto a surface of an anode current collector to form an anode electrode, wherein the wet anode active material mixture contains an anode active material and a conductive additive dispersed in a second electrolytes; and (C) combining the cathode electrode or a portion thereof and the anode electrode or a portion thereof to form the cell; wherein the anode electrode and/or the cathode electrode has a thickness from 200 μm to 3,000 μm. 1. A process for producing an electrochemical cell , said process comprising:(A) continuously depositing a wet cathode active material mixture onto at least a surface of a cathode current collector to form a wet cathode electrode, wherein said wet cathode active material mixture contains 30% to 85% by volume of a cathode active material and 0% to 15% by volume of a conductive additive dispersed in a first liquid or polymer gel electrolyte;(B) continuously depositing a wet anode active material mixture onto at least a surface of an anode current collector to form a wet anode electrode, wherein said wet anode active material mixture contains 30% to 85% by weight of an anode active material and 0% to 15% by volume of a conductive additive dispersed in a second liquid or polymer gel electrolytes; and(C) combining said wet cathode electrode or a portion thereof and said wet anode electrode or a portion thereof to form said electrochemical cell;wherein said anode electrode and/or said cathode electrode has a thickness from 200 μm to 3,000 μm.2. The process of claim 1 , ...

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Номер записи: 90
15-03-2018 дата публикации

Articles containing ptfe having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles

Номер: US20180072824A1
Автор: Frank M. Keese, Georges Moineau, Jennifer Adamchuk, Jessica L. Mccoy, John Marko, Joseph B. Macdonald, Mark E. Schiek, Paul J. BEAUMONT, Philip C. Guy, Scott P. Campbell, Silvia Ruth GORMAN
Принадлежит: Saint Gobain Performance Plastics Corp

The present disclosure relates to methods of making an article comprising PTFE, methods of making expanded articles comprising PTFE, articles comprising PTFE, and expanded articles comprising PTFE having improved mechanical and electrical performance and particularly reduced variability in mechanical, electrical and dimensional properties, particularly over long lengths.

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Номер записи: 91
07-03-2019 дата публикации

STORAGE STABLE AQUEOUS ORGANIC PEROXIDE EMULSIONS

Номер: US20190071397A1
Автор: Gerritsen René, HEKKERT Richard Hermannes Johannes, KEIJZER Ester Elisabeth Antonia
Принадлежит:

Aqueous emulsion comprising: —25-70 wt % organic peroxide, based on the weight of the emulsion, —a cyclohexane dicarboxylate ester, and —water. This emulsion is storage stable and can be used for the production of polymers, in particular PVC, that come into contact with food products. 1. Aqueous emulsion comprising:25-70 wt % organic peroxide, based on the weight of the emulsion,a cyclohexane dicarboxylate ester, andwater.2. Emulsion according to claim 1 , wherein the cyclohexane dicarboxylate ester is di-isononyl cyclohexane dicarboxylate (DINCH).3. Emulsion according to wherein the cyclohexane dicarboxylate ester is present in an amount of 0.1-10 wt % claim 1 , based on the weight of the emulsion.4. Emulsion according to claim 1 , additionally comprising an anti-freeze agent.5. Emulsion according to claim 4 , wherein the anti-freeze agent is selected from the group consisting of methanol claim 4 , ethanol claim 4 , isopropanol claim 4 , (ethylene) glycol claim 4 , propanediol claim 4 , glycerol claim 4 , and mixtures thereof.6. Emulsion according to claim 1 , additionally comprising a protective colloid.7. Emulsion according to claim 1 , additionally comprising an emulsifier.8. Emulsion according to claim 7 , wherein the emulsifier is a non-ionic surfactant.9. A method of polymerizing a vinyl chloride monomer wherein the emulsion according to is added to a vinyl chloride monomer in an effective amount. The present invention relates to an aqueous organic peroxide emulsion and its use in the polymerization of vinyl chloride.As is well known, organic peroxides are thermally labile compounds. Because the decomposition of these peroxides is exothermic, it is hazardous when the heat of decomposition cannot be dissipated, e.g., by heat loss to the surrounding area. When heat accumulates, the decomposition reaction may run out of control. To avoid such undesired situation, the peroxide typically is formulated with one or more phlegmatising agents. One example of a ...

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Номер записи: 92
16-03-2017 дата публикации

Aqueous polymerization of perfluoromonomer using hydrocarbon surfactant

Номер: US20170073435A1
Автор: Dipti Dilip Khasnis, Paul Douglas Brothers, Subhash Vishnu Gangal
Принадлежит: Chemours Co FC LLC

A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt %, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.

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Номер записи: 93
05-06-2014 дата публикации

APPARATUSES AND METHODS FOR THE PRODUCTION OF FIBERS

Номер: US20140154493A1
Автор: Bell Nelson, Lozano Karen, Rane Yatinkumar
Принадлежит: Board of Regents of the University of Texas System

A method of producing fibers, includes placing a composition that includes one or more fluoropolymers in the body of a fiber producing device and rotating the device at a speed sufficient to eject material from the fiber producing device to form fluoropolymer microfibers and/or nanofibers. 1. A method of producing fibers , comprising:placing a composition comprising one or more fluoropolymers into a body of a fiber producing device, the body comprising one or more openings;rotating the fiber producing device at a speed of at least about 500 rpm, wherein rotation of the fiber producing device causes the composition in the body to be passed through one or more openings to produce microfibers and/or nanofibers comprising one or more of the fluoropolymers; andcollecting at least a portion of the produced microfibers and/or nanofibers.2. The method of claim 1 , wherein the microfibers and/or nanofibers are created without subjecting the fibers claim 1 , during their creation claim 1 , to an externally applied electric field.3. The method of claim 1 , further comprising mixing one or more fluoropolymers with a solvent to produce the composition as a mixture of the one or more fluoropolymers in the solvent claim 1 , and placing the composition in the fiber producing device.4. The method of claim 1 , wherein the fiber producing device comprises at least two opposing openings.5. The method of claim 1 , wherein the fiber producing device comprises one or more needles coupled to one or more of the openings.6. The method of claim 1 , further comprising coupling the fiber producing device to a driver claim 1 , and activating the driver claim 1 , wherein the driver rotates the fiber producing device.7. The method of claim 1 , further comprising placing the fiber producing device in a chamber claim 1 , and controlling the environment inside the chamber.8. The method of claim 1 , further comprising collecting fibers on a collection device surrounding at least a portion of the fiber ...

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Номер записи: 94
24-03-2016 дата публикации

Aqueous polyvinylidene fluoride composition

Номер: US20160086742A1
Автор: Ramin Amin-Sanayei, Ravi R. Gupta
Принадлежит: Arkema Inc

The invention relates to an aqueous fluoropolymer, and preferably polyvinylidene fluoride (PVDF), composition for manufacturing electrodes for use in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors. The composition contains aqueous PVDF binder, and one or more powdery electrode-forming materials. In one embodiment, the composition is free of fluorinated surfactant In another embodiment, one or more fugitive adhesion promoters are added. The electrode formed from the composition of the invention exhibits interconnectivity and irreversibility that is achieved from the use of aqueous PVDF binder.

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Номер записи: 95
25-03-2021 дата публикации

Composition for preparing vinyl chloride-based polymer and method for preparing vinyl chloride-based polymer using the same

Номер: US20210087303A1
Автор: Heung Kwon Bae, Hyun Min Lee, Joong Chul Lim, Jung Rae Lee, Kyung Seog Youk, Min Jeong Kang
Принадлежит: LG Chem Ltd

The present disclosure provides a composition for preparing a vinyl chloride-based polymer, including a vinyl chloride-based first seed; a vinyl chloride-based second seed; an initiator composition including a water-soluble initiator and an oil-soluble initiator; a reducing agent; and a vinyl chloride-based monomer, wherein a metal catalyst is not included in the composition, and a method for preparing a vinyl chloride-based polymer using the same.

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Номер записи: 96
25-03-2021 дата публикации

CURABLE FLUOROCOPOLYMER FORMED FROM TETRAFLUOROPROPENE

Номер: US20210087308A1
Автор: Feng Shijun, JIANG WANCHAO, Lin Yun, POSS Andrew J., ZHANG SIYUAN
Принадлежит: HONEYWELL INTERNATIONAL INC.

The present invention is directed to partially fluorinated copolymers and the production thereof. More specifically, the copolymers, which are preferably produced by a solution polymerization process, preferably have at least three units, the first unit selected from 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, the second unit having a polymerized monomer selected from the vinyl esters and vinyl ethers, and the third unit having a polymerized monomer derived from a hydroxyl group-containing vinyl ether. The resulting copolymer is environmentally friendly, has favorable molecular weight characteristics, and may be shipped economically in high concentration. 110-. (canceled)11. A copolymer composition comprising a copolymer , the copolymer comprising: (a) a first unit comprising a polymerized monomer of 2 ,3 ,3 ,3-tetrafluoro-propene; (b) a second unit comprising a polymerized monomer selected from the group consisting of vinyl esters and vinyl ethers; and (c) a third unit comprising a polymerized monomer comprising a hydroxyl group-containing vinyl ether.12. The copolymer composition of claim 11 , wherein the copolymer comprises 40 to 60 mol % of said first unit.13. The copolymer composition of claim 12 , wherein the copolymer comprises 5 to 45 mol % of said second unit claim 12 , wherein said second unit is selected from the group consisting of alkyl vinyl ethers claim 12 , vinyl esters claim 12 , and mixtures thereof.14. The copolymer composition of claim 13 , wherein the copolymer comprises 3 to 30 mol % of said third unit claim 13 , wherein said second unit consists of hydroxyalkyl vinyl ethers.1518-. (canceled)19. The composition of claim 11 , wherein said copolymer consists essentially of said polymerized 2 claim 11 ,3 claim 11 ,3 claim 11 ,3-tetrafluoropropene claim 11 , vinyl esters claim 11 , vinyl ethers; and hydroxyl group-containing vinyl ether(s).20. The composition of claim 11 , wherein the copolymer has a number average molecular weight ...

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Номер записи: 97
29-03-2018 дата публикации

MEDICAL INSTRUMENT, FLUORINE-CONTAINING CYCLIC OLEFIN POLYMER, FLUORINE-CONTAINING CYCLIC OLEFIN POLYMER COMPOSITION, AND CELL CULTURE METHOD

Номер: US20180086864A1
Автор: MIYASAKO Hiroshi, Oda Takashi, OHKITA Hisanori, SUNAGA Tadahiro
Принадлежит: Mitsui Chemicals, Inc.

Medical instrument including a substrate using a fluorine-containing cyclic olefin polymer containing a structural unit represented by General Formula (1), in which the substrate has one surface where the substrate comes into contact with cells, and the substrate is provided with a convex-concave structure on the one surface, a ratio (L1/L2) of a width (L1) between convexities formed by the convex-concave structure and a maximum diameter (L2) of inoculated cells per cell in the cells is 1 to 300, and the cells do not adhere to or attach to the one surface provided with the convex-concave structure and the medical instrument promotes cell proliferation. 2. The medical instrument according to claim 1 ,wherein the L1/L2 is 1 to 100.3. The medical instrument according to claim 1 ,wherein a width between convexities of the convex-concave structure is 10 μm to 1,000 μm.4. The medical instrument according to claim 1 ,wherein the one surface has a water contact angle of 70° to 160°.5. The medical instrument according to claim 1 ,wherein the one surface is formed by a fluorine-containing cyclic olefin polymer composition including the fluorine-containing cyclic olefin polymer, a photocurable compound, and a photo-curing initiator.6. The medical instrument according to claim 5 ,wherein a mass ratio (fluorine-containing cyclic olefin polymer/photocurable compound) of the fluorine-containing cyclic olefin polymer and the photocurable compound in the fluorine-containing cyclic olefin polymer composition is from 99.9/0.1 to 50/50.7. The medical instrument according to claim 1 , which is used for culturing cells in contact with the one surface.8. The medical instrument according to claim 7 ,wherein the cultured cells from the cells float and proliferate while forming a group of growing cells selected from cell sheets, spheroids, or colonies.9. The medical instrument according to claim 7 ,wherein a group of growing cells is liberated by a buffer solution and detached from the one ...

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Номер записи: 98
29-03-2018 дата публикации

Hierarchical magnetic nanoparticle-enzyme mesoporous assemblies embedded in macroporous scaffolds

Номер: US20180087043A1
Автор: Daniel Aneshansley, Emmanuel Giannelis, Larry P. Walker, Stephane C. Corgie, Xiaonan Duan
Принадлежит: CORNELL UNIVERSITY

A hierarchical catalyst composition comprising a continuous or particulate macroporous scaffold in which is incorporated mesoporous aggregates of magnetic nanoparticles, wherein an enzyme is embedded in mesopores of the mesoporous aggregates of magnetic nanoparticles. Methods for synthesizing the hierarchical catalyst composition are also described. Also described are processes that use the recoverable hierarchical catalyst composition for depolymerizing lignin, remediation of water contaminated with aromatic substances, polymerizing monomers by a free-radical mechanism, epoxidation of alkenes, halogenation of phenols, inhibiting growth and function of microorganisms in a solution, and carbon dioxide conversion to methanol. Further described are methods for increasing the space time yield and/or total turnover number of a liquid-phase chemical reaction that includes magnetic particles to facilitate the chemical reaction, the method comprising subjecting the chemical reaction to a plurality of magnetic fields of selected magnetic strength, relative position in the chemical reaction, and relative motion.

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Номер записи: 99
30-03-2017 дата публикации

HIGH MELT FLOW FLUOROPOLYMER COMPOSITION

Номер: US20170088989A1
Автор: CHAUVEAU Jérôme, Goldbach James T., HENRY James J., Stabler Sean M.
Принадлежит:

The invention relates to very high melt flow fluoropolymer compositions, having low melt viscosities. The fluoropolymers have low molecular weights of from 5 kDa to 200 kDa and melt viscosities of less than 2 kilopoise (kP) at 232° C. and 100 s. One use for the high melt flow fluoropolymers is in the formation of very small diameters fibers, useful for melt-blown non-woven materials. Fiber diameters of less than 9 microns, and preferably 500 to 2000 nm can be produced. 1. A fluoropolymer composition comprising a fluoropolymer having at least 60 weight percent of one or more fluoromonomers , wherein said fluoropolymer has a melt viscosity of 0.01 to 2.0 kP , at 100 sand 232° C. , as measured by parallel plate rheology , and has a weight average molecular weight of from 15 ,000 to 200 ,000 Dalton as measured by GPC relative to polymethyl methacrylate (PMMA) narrow standards.2. The fluoropolymer composition of wherein said fluoropolymer has a melt viscosity of 0.02 to 1.0 kP claim 1 , at 100 sand 232° C. claim 1 , as measured by parallel plate rheology claim 1 , and has a weight average molecular weight of from 15 claim 1 ,000 to 140 claim 1 ,000 Dalton as measured by GPC relative to PMMA narrow standards.3. The fluoropolymer composition of claim 1 , wherein said fluoropolymer has a melt viscosity of 0.03 to 0.5 kP claim 1 , at 100 sand 232° C. claim 1 , as measured by parallel plate rheology claim 1 , and has a weight average molecular weight of from 15 claim 1 ,000 to 100 claim 1 ,000 Dalton as measured by GPC relative to PMMA narrow standards.4. The fluoropolymer composition of claim 1 , wherein said fluoromonomer(s) are selected from the group consisting of vinylidene fluoride (VDF) claim 1 , tetrafluoroethylene (TFE) claim 1 , trifluoroethylene (TrFE) claim 1 , chlorotrifluoroethylene (CTFE) claim 1 , dichlorodifluoroethylene claim 1 , hexafluoropropene (RFP) claim 1 , vinyl fluoride (VF) claim 1 , hexafluoroisobutylene (HFIB) claim 1 , perfluorobutylethylene ( ...

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Номер записи: 100