Reduced profile medical balloon element

Medical dilatation balloons comprise a polymer that has the attribute of memory, and/or is crosslinked to impart memory. Such balloons exhibit a reduced tendency to overinflate at high inflation pressures. Furthermore, such balloons when shrunk radially by the application of heat while restraining axial shrinkage, exhibit customizable linear or non-linear compliance curves and lower crosslinking profile relative to the same balloon when unshrunk. Also disclosed is an expansive element within a tube whose outer diameter is equal to the outer diameter of the tube from which it was made. In addition, disclosed are (a) processes for preparing crosslinkable polymers, (b) joining crosslinked balloons to catheter systems, (c) forming shrunk balloon elements, and (d) forming an expansive element within a tube whose outer diameter is equal to the outer diameter of the tube from which it was made.

Graft composition for improved tie layers

Graft compositions, useful for tie-layer adhesives, are disclosed. The graft compositions comprise the reaction product of a live, grafted polyolefin and an olefin elastomer. The grafted polyolefin is first made by heating a polyolefin and an unsaturated monomer. Further reaction of the live, grafted polyolefin with an olefin elastomer provides the graft composition. Grafting efficiency is boosted dramatically by the presence of the olefin elastomer and use of the additional reaction step. The graft composition, when formulated into a tie-layer adhesive at low concentration, affords multilayer structures with good adhesion and high clarity.

Macro-photoinitiators and curable compositions thereof

Macro-photoinitiators having defined polymer chain structure are provided. The macro-photoinitiators are terminated with residues of thiol and/or hydroxyl functional photoinitiators. The macro-photoinitiators may be prepared by controlled radical polymerization methods, such as atom transfer radical polymerization and single electron transfer polymerization methods. Also provided are curable (e.g., photocurable) compositions that include the macro-photoinitiators of the present invention.

Functionalized nonwoven article

A grafted nonwoven substrate is disclosed having average fiber sizes of 0.7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.

Graft copolymers

Anionic graft copolymers and scale inhibition compositions including the anionic graft copolymers in which the anionic graft copolymers include a natural component grafted with an ethylenically unsaturated anionic monomer where the anionic graft copolymer includes 1 or more reacted anhydroglucose units per every 100 anhydroglucose units in the anionic graft copolymer.

Biomedical devices containing internal wetting agents

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

PROCESS FOR GRAFT POLYMERIZATION ON POLYMER SURFACES USING ORGANO-BORANE-AMINE COMPLEXES AS RADICAL INITIATORS

The present invention relates to a process for the modification of a polymer surface. The polymer surface is treated with 113-. (canceled)14. A process for the modification of a polymer surface comprising treating a polymer surface with(i) an organoborane-amine complex and subsequently with(ii) a radically polymerizable monomer compound and optionally a deblocking agent.15. The process according to claim 14 , wherein any excess polymerized material that is not grafted onto the surface is removed.16. The process according to claim 14 , wherein the polymer has a low surface energy.17. The process according to claim 14 , wherein the organoborane-amine complex has a structure of formula (1){'br': None, 'sub': 1', '2', '3', '4', '5', '6, 'RRRB—NRRR\u2003\u2003(1),'}{'sub': 1', '2', '3', '1', '2', '3, 'wherein R, Rand Rare independently alkyl, aryl, alkoxy or aryloxy groups, with the proviso that at least one of R, Rand Ris an alkyl or aryl group, and'}{'sub': 4', '5', '6', '4', '5', '6, 'R, Rand Rare independently hydrogen, alkyl, cycloalkyl, substituted alkyl, alkoxy, alkylamino, aryl or heteroaryl groups, with the proviso that not more than two of R, Rand Rare simultaneously hydrogen, or'}{'sub': 4', '5', '6, 'NRRRis a heterocyclic aliphatic or aromatic amine, optionally comprising further heteroatoms selected from the group, consisting of N, O, S and P.'}18. The process according to claim 17 , wherein the organoborane-amine complex is a trialkylborane-amine complex.19. The process according to claim 14 , wherein the radically polymerizable monomer compound has a structure of formula (2) comprising an olefinic double bond{'br': None, 'sub': 7', '8', '9', '10, 'RRC═CRR\u2003\u2003(2),'} [{'br': None, 'sub': 7', '8, 'RC≡CR\u2003\u2003(3),'}, {'br': None, 'or with a structure of formula (4) comprising a carbonyl group'}, {'br': None, 'sub': 7', '8, 'RRC═O \u2003\u2003(4),'}], 'or with a structure of formula (3) comprising an acetylenic triple bond'} {'br': None, 'sub': 7 ...

Process for preparing an organic film at the surface of a solid support by transfer or by spraying

The present invention relates to a method for preparing an organic film on the surface of a solid support including the steps consisting in (a) applying, to said surface, by transfer or by spraying, a solution containing at least one cleavable aryl salt; (b) subjecting said solution to a UV or visible irradiation, by means of which radical entities are formed from the cleavable aryl salt and an organic film is grafted. The present invention also relates to a kit of elements for the implementation of such a method.

Composite and production method thereof

A composite including a plurality of block copolymer chains dispersed in a base polymer, the block copolymer chains including a polymer block (A) and a polymer block (B) having lower affinity for the base polymer than that of the polymer block (A), wherein each of the block copolymer chains has the polymer block (A) at two or more locations of the block copolymer chain, and in at least some of the block copolymer chains, the polymer blocks (A) are at least partially located in the base polymer and the polymer blocks (B) are at least partially exposed from the base polymer.

METHOD FOR SURFACE MODIFICATION OF FLUORORESIN

To provide a method for surface modification of a fluororesin, that enables graft polymerization at a lower temperature than a conventional method. 1. A method for surface modification of a fluororesin , which comprises reacting a fluororesin with a radical reactive compound in the presence of an organometallic compound.2. The method for surface modification of a fluororesin according to claim 1 , wherein the fluororesin is in a film form or a particle form.3. The method for surface modification of a fluororesin according to claim 1 , wherein the fluororesin is at least one type selected from the group consisting of a ethylene-tetrafluoroethylene copolymer claim 1 , a perfluoro(alkyl vinyl ether)-tetrafluoroethylene copolymer claim 1 , a vinylidene fluoride polymer claim 1 , a vinyl fluoride polymer claim 1 , a vinylidene fluoride-hexafluoropropylene copolymer claim 1 , a tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer claim 1 , a tetrafluoroethylene-propylene copolymer claim 1 , a tetrafluoroethylene-vinylidene fluoride-propylene copolymer claim 1 , a hexafluoropropylene-tetrafluoroethylene copolymer claim 1 , an ethylene-hexafluoropropylene-tetrafluoroethylene copolymer claim 1 , a chlorotrifluoroethylene polymer claim 1 , an ethylene-chlorotrifluoroethylene copolymer claim 1 , a polytetrafluoroethylene and a propylene-chlorotrifluoroethylene copolymer.4. The method for surface modification of a fluororesin according to claim 1 , wherein the organometallic compound contains at least one element selected from the group consisting of Group 12 elements claim 1 , Group 13 elements and Group 15 elements.5. The method for surface modification of a fluororesin according to claim 1 , wherein the organometallic compound is at least one type selected from the group consisting of a dialkyl zinc complex and a trialkylborane.6. The method for surface modification of a fluororesin according to claim 1 , wherein the organometallic compound is at least one ...

Polysaccharide and/or polypeptide based graft polymers as synthetic tannins

A graft polymer of polysaccharides or polypeptides or its respective derivatives, obtainable by free radical polymerization of A) a monomer selected from or a monomer mixture of (a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of either B1) polysaccharides, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidized hydrolytically degraded or oxidized enzymatically degraded polysaccharides, or such chemically modified degraded products, chemically modified mono-, oligo-or poly-saccharides or mixtures of the stated compounds and/or B2) polypeptides, their hydrolysates or enzymaticallydegraded and optionally chemically modified products or mixtures of the stated compounds in a weight ratio A: (B1 or B2) of from 1:99 to 18:82 or in a weight ratio A:(B1+B2) of from 60:40 to 1:99 and B1:B2 of from 97:3 to 3:97 used as tanning agents.

SEQUENCED POLYMERS FOR MONITORING THE FILTRATE

The invention relates to a method for preparing a sequenced copolymer comprising a first block (A) connected to a second block (B), said method comprising the following steps of monitored radical polymerisation: (E1) bringing into contact, typically in an aqueous medium: unsaturated ethylene monomers m, selected in order to constitute the block (A); a source of free radicals; and an agent for monitoring the radical polymerisation; and then (E2) bringing into contact: the polymer obtained from step (E1); unsaturated ethylene monomers m; a source of free radicals; and a polymer Pwhich is not ethylenically unsaturated and supports labile hydrogens. 1. A process for the preparation of a block copolymer P comprising a first block (A) bonded to a second block (B) , the process comprising the following controlled radical polymerization stages: [{'sub': 'A', 'ethylenically unsaturated monomers m, which are identical or different, chosen for the construction of the block (A);'}, 'a source of free radicals which is suitable for the polymerization of said monomers; and', 'a control agent for the radical polymerization; then, '(E1) the following are brought into contact the polymer obtained on conclusion of stage (E1), which acts as control agent for the radical polymerization;', {'sub': 'B', 'ethylenically unsaturated monomers m, which are identical or different, chosen for the construction of the block (B);'}, 'a source of free radicals which is suitable for the polymerization of said monomers; and', {'sup': '0', 'a polymer Pwhich is not ethylenically unsaturated and which carries labile hydrogens.'}], '(E2) the following are brought into contact2. The process as claimed in claim 1 , wherein the polymer Pused in stage (E2) is a natural polymer which is not ethylenically unsaturated selected from the group consisting of:native or modified polysaccharides,lignites and lignosulfonates,alginates,gelatins,carrageenans,agars,humic acid,peptides,proteins, andthe mixtures of these ...

POROUS-POLYMER-MODIFIED METAL CARBON NANOTUBE COMPOSITE MEMBRANE, PREPARATION METHOD AND APPLICATION THEREOF

A method for preparing a porous-polymer-modified metal carbon nanotube membrane includes: preparing an acidified carbon nanotube membrane; preparing a modification solution; heating the acidified carbon nanotube membrane in the modification solution and reacting to obtain a metal carbon nanotube membrane; conducting a polymerization reaction to obtain a crude polymer product; coating the metal carbon nanotube membrane with a polyethylene glycol diglycidyl ether (PEGDEG) solution; coating the metal carbon nanotube membrane with a porous polymer solution; and heating the metal carbon nanotube membrane to obtain the porous-polymer-modified metal carbon nanotube membrane. A porous-polymer-modified metal carbon nanotube membrane is prepared according to this method. 1. A method for preparing a porous-polymer-modified metal carbon nanotube membrane , comprising:immersing a carbon nanotube membrane in aqua regia for acidification to obtain an acidified carbon nanotube membrane;preparing a modification solution that includes a zirconium salt, terephthalic acid, acetic acid, and a solvent;heating the acidified carbon nanotube membrane in the modification solution and reacting to obtain a metal carbon nanotube membrane;conducting a polymerization reaction of 2,3,5,6-tetrafluoroterephthalonitrile and 5,5′,6,6′-tetrahydroxy-3,3′,4,4′-tetramethyl-1,1′-spiralbisindan, under nitrogen atmosphere and in the presence of anhydrous potassium carbonate, to obtain a crude polymer product;precipitating the crude polymer product in methanol, dissolving the crude product in chloroform, precipitating the crude polymer product in methanol, and heating the crude polymer product in water to obtain a porous polymer;preparing a polyethylene glycol diglycidyl ether (PEGDEG) solution and coating the metal carbon nanotube membrane with the polyethylene glycol diglycidyl ether solution;preparing a porous polymer solution and coating the metal carbon nanotube membrane with the porous polymer solution; ...

Halogenated Wax Grafted To Low Molecular Weight Polymer

A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000. A method of making the wax-polymer compound and a coated silica particle are also disclosed.

FLUID LOSS ADDITIVE FOR WATER BASED DRILLING FLUIDS WITH IMPROVED THERMAL STABILITY

A polymer microsphere for use as a fluid loss additive in drilling muds including a hydrophobic core of hydrophobic monomers and a hydrophilic shell of hydrophilic monomers wherein the hydrophilic shell surrounds the hydrophobic core. The polymer microsphere is capable of forming micelles or microgels in water without using surfactants and can be block, graft, and random copolymers. The hydrophilic shell is physically or chemically linked to the hydrophobic core. The polymer microsphere further includes crosslinkers, preferably where the crosslinkers are monomers containing at least two ethylenically unsaturated groups. 1. A method of using a plurality of self-dispersible polymer microspheres as fluid loss additives , which comprises the step of introducing the self-dispersible polymer microspheres into a drilling mud; where each self-dispersible polymer microsphere comprises:a hydrophobic core of hydrophobic monomers; anda hydrophilic shell of hydrophilic monomers;wherein the hydrophilic shell surrounds the hydrophobic core; andwherein the polymer microsphere is formed in water without addition of an emulsifier.2. The method of wherein the self-dispersible polymer microspheres are free of surfactants.3. The method of wherein the hydrophilic shell has a weight of between about 10% to about 90% by weight of the self-dispersible polymer microspheres.4. The method of wherein each self-dispersible polymer microsphere microsphere has a particle size of between about 0.01 to about 1000 microns.5. The method of wherein each self-dispersible polymer microsphere is selected from the group consisting of block claim 1 , graft claim 1 , and random copolymers.6. The method of wherein the hydrophilic shell is physically or chemically linked to the hydrophobic core of each self-dispersible polymer microsphere. This application for patent is a divisional of U.S. Non-Provisional Application No. 15/039,352, entitled “FLUID LOSS ADDITIVE FOR WATER BASED DRILLING FLUIDS WITH IMPROVED ...

BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. 1137-. (canceled)138. An ophthalmic device comprising at least one hydroxyl-functionalized silicone-containing monomer and an amount of high molecular weight hydrophilic polymer sufficient to provide said device , without a surface treatment , with tear film break up time after about one day of wear of at least about 7 seconds.139162-. (canceled) This patent application claims priority of a provisional application, U.S. Ser. No. 60/318,536 which was filed on Sep. 10, 2001.This invention relates to silicone hydrogels that contain internal wetting agents, as well as methods for their production and use.Contact lenses have been used commercially to improve vision since at least the 1950s. The first contact lenses were made of hard materials and as such were somewhat uncomfortable to users. Modern lenses have been developed that are made of softer materials, typically hydrogels and particularly silicone hydrogels. Silicone hydrogels are water-swollen polymer networks that have high oxygen permeability and surfaces that are more hydrophobic than hydrophilic. These lenses provide a good level of comfort to many lens wearers, but there are some users who experience discomfort and excessive ocular deposits leading to reduced visual acuity when using these lenses. This discomfort and deposits has been attributed to the hydrophobic character of the surfaces of lenses and the interaction of those surfaces with the protein, lipids and mucin and the hydrophilic surface of the eye.Others have tried to alleviate this problem by coating the surface of silicone hydrogel contact lenses with hydrophilic coatings, such as plasma coatings Uncoated lenses having low incidences of surface deposits are not disclosed.Incorporating internal hydrophilic agents (or wetting agents) into a macromer containing reaction mixture has ...

Coating Compositions for Aluminum Beverage Cans and Methods of Coating Same

A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.

THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

A thermoplastic resin composition of the present invention contains a graft copolymer (B) obtained by polymerizing a vinyl-based monomer component (m1) in the presence of a composite rubber polymer (A) formed from a polyorganosiloxane (Aa) and a poly(meth)acrylate ester (Ab), and a (meth)acrylate ester resin (C) obtained by polymerizing a vinyl-based monomer component (m2), wherein the amount of the polyorganosiloxane (Aa) relative to the total mass (100% by mass) of the composite rubber polymer (A) is from 1 to 20% by mass, the volume average particle size of the composite rubber polymer (A) is from 0.05 to 0.15 μm, and relative to the total mass (100% by mass) of the vinyl-based monomer component (m2), the amount of the maleimide-based compound is from 1 to 30% by mass, and the amount of the aromatic vinyl compound is from 5.5 to 15% by mass. 1. A thermoplastic resin composition , comprising: 'a polyorganosiloxane (Aa) and a poly(meth)acrylate ester (Ab) having units derived from a (meth)acrylate ester and either one of, or both, units derived from a crosslinking agent and units derived from a graft-linking agent; and', 'a graft copolymer (B) obtained by polymerizing a vinyl-containing monomer component (m1) comprising an aromatic vinyl compound and a vinyl cyanide compound in presence of a composite rubber polymer (A) comprising'}a (meth)acrylate ester resin (C) obtained by polymerizing a vinyl-containing monomer component (m2) comprising a (meth)acrylate ester, a maleimide-containing compound and an aromatic vinyl compound,whereinan amount of the polyorganosiloxane (Aa) relative to a total mass (100% by mass) of the composite rubber polymer (A) is from 1 to 20% by mass,a volume average particle size of the composite rubber polymer (A) is from 0.05 to 0.15 μm, andrelative to a total mass (100% by mass) of the vinyl-containing monomer component (m2), an amount of the maleimide-containing compound is from 1 to 30% by mass, and an amount of the aromatic vinyl ...

Novel antifouling technology by raft polymerization

Directed bioadhesion coatings, methods of forming directed bioadhesion coatings, and methods of directing bioadhesion are provided. In particular, methods of forming directed bioadhesion coatings include providing a substrate having a graft monomer layer on a surface thereof, selectively removing discrete portions of the graft monomer layer to expose the substrate surface, polymerizing any remaining portions of the graft monomer layer via reversible addition-fragmentation chain-transfer (RAFT) polymerization with a RAFT chain transfer agent to form a plurality of graft polymers, and simultaneously with polymerizing the remaining graft monomer layer, grafting the plurality of graft polymers to the substrate to form a chemical pattern on the substrate.

Novel composite material, and polymer coating material precursor produced using same

A novel material is provided herein which is suitable for use in a precursor of a polymer coating material that coats a polymer on a surface of a base material to provide the base material with surface modification and/or functionality assignment. A composite material characterized in that a compound having a polymerization initiation site containing a halogen group is incorporated in a crosslinked structure comprising a catechol derivative or a phenol derivative represented by the following formula (I). In the formula (I), R may be interrupted by an oxygen molecule and represents a hydrocarbon group with 2 to 20 carbons that has at least one double bond site, and A represents a hydrogen atom, a hydroxyl group, or an alkoxy group with 1 to 20 carbons.

COMPOSITIONS INCLUDING A POLYTHIOL, AN UNSATURATED COMPOUND, AND A DYE AND METHODS RELATING TO SUCH COMPOSITIONS

A curable composition having a polythiol; at least one unsaturated compound comprising more than one carbon-carbon double bond, carbon-carbon triple bond, or a combination thereof; and a dye compound represented by formula (I). A crosslinked composition prepared from the curable composition, a method of making an at least partially crosslinked network, a method for indicating curing in a curable composition, and a method of stabilizing a curable composition comprising a polythiol and at least one unsaturated compound comprising more than one carbon-carbon double bond, carbon-carbon triple bond, or a combination thereof are also disclosed. Z is not reactive with the polythiol or unsaturated compound. 2. The curable composition of claim 1 , wherein Y is —O—C(O)— or —O—C(O)—NR—.3. The curable composition of claim 2 , wherein Z is alkyl or aryl.4. The curable composition of claim 1 , wherein X is alkylene.5. The curable composition of claim 1 , further comprising a free-radical initiator.6. The curable composition of claim 5 , wherein the free-radical initiator is a photoinitiator.7. The curable composition of claim 1 , wherein the polythiol is monomeric.8. The curable composition of claim 1 , wherein the polythiol is oligomeric or polymeric.9. The curable composition of claim 8 , wherein the polythiol is a polythioether oligomer or polymer or a polysulfide oligomer or polymer.10. The curable composition of claim 1 , wherein the at least one unsaturated compound comprises two carbon-carbon double bonds claim 1 , and wherein the curable composition further comprises a second unsaturated compound comprising three carbon-carbon double bonds.11. The curable composition of claim 1 , further comprising at least one of silica claim 1 , carbon black claim 1 , calcium carbonate claim 1 , aluminum silicate claim 1 , or lightweight particles having a density of up to 0.7 grams per cubic centimeter.13. A sealant comprising the at least partially crosslinked polymer network of .14. ...

BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. 1. A biomedical device formed from a reaction mixture comprising a high molecular weight hydrophilic polymer; an effective amount of an hydroxyl-functionalized silicone-containing monomer; an ultra-violet absorbing compound; and a photochromic compound.2. The biomedical device of wherein the effective amount of said hydroxyl-functionalized silicone-containing monomer is about 5% to about 90%3. The biomedical device of wherein the device is a silicone hydrogel contact lens.4. The biomedical device of comprising about 1% to about 15% high molecular weight hydrophilic polymer.5. The biomedical device of wherein the effective amount of hydroxyl-functionalized silicone-containing monomer is about 10% to about 80%.7. The biomedical device of wherein said hydroxyl-functionalized silicone-containing monomer is selected from the group consisting of 2-propenoic acid claim 1 , 2-methyl-2-hydroxy-3-[3-[1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetramethyl-1-[trimethylsilyl)oxy]disiloxanyl]propoxy]propyl ester claim 1 , (3-methacryloxy-2-hydroxypropyloxy)propyltris(trimethylsiloxy)silane claim 1 , (2-methacryloxy-3-hydroxypropyloxy)propylbis(trimethylsiloxy)methylsilane and mixtures thereof.8. The biomedical device of wherein the effective amount of said hydroxyl-functionalized silicone-containing monomer is about 20% to about 50%.9. The biomedical device of further comprising about 10% to about 40% additional silicone containing monomer claim 7 , about 10% to about 50% hydrophilic monomers claim 7 , and about 3% to about 15% high molecular weight hydrophilic polymer.10. The biomedical device of claim 9 , wherein the device is a soft contact lens.11. The biomedical device of claim 1 , wherein the hydroxyl-functionalized silicone-containing monomer has a monomer compatibility index of greater than about 0.5.12. The ...

BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. 115-. (canceled)16. The method of wherein said hydrophilic polymer is selected from the group consisting of poly-N-vinyl pyrrolidone claim 152 , poly-N-vinyl-2-piperidone claim 152 , poly-N-vinyl-2-caprolactam claim 152 , poly-N-vinyl-3-methyl-2-caprolactam claim 152 , poly-N-vinyl-3-methyl-2-piperidone claim 152 , poly-N-vinyl-4-methyl-2-piperidone claim 152 , poly-N-vinyl-4-methyl-2-caprolactam claim 152 , poly-N-vinyl-3-ethyl-2-pyrrolidone claim 152 , and poly-N-vinyl-4 claim 152 ,5-dimethyl-2-pyrrolidone claim 152 , polyvinylimidazole claim 152 , poly-N—N-dimethylacrylamide claim 152 , polyvinyl alcohol claim 152 , polyacrylic acid claim 152 , polyethylene oxide claim 152 , poly 2 ethyl oxazoline claim 152 , heparin polysaccharides claim 152 , polysaccharides claim 152 , mixtures and copolymers thereof.17. The method of wherein said hydrophilic polymer comprises poly-N-vinylpyrrolidone.18. The method of comprising about 1 to about 15 weight % high molecular weight hydrophilic polymer19. The method of comprising about 3 to about 15 weight % high molecular weight hydrophilic polymer.20. The method of comprising about 5 to about 12 weight % high molecular weight hydrophilic polymer.22. The method of wherein the effective amount of hydroxyl-functionalized silicone-containing monomer is about 20% to about 50%.23. The method of wherein said hydroxyl-functionalized silicone-containing monomer is selected from the group consisting of 2-propenoic acid claim 21 , 2-methyl-2-hydroxy-3-[3-[1 claim 21 ,3 claim 21 ,3 claim 21 ,3-tetramethyl-1-[trimethylsilyl)oxy]disiloxanyl]propoxy]propyl ester claim 21 , (3-methacryloxy-2-hydroxypropyloxy)propyltris(trimethylsiloxy)silane claim 21 , (2-methacryloxy-3-hydroxypropyloxy)propylbis(trimethylsiloxy)methylsilane and mixtures thereof.2428-. (canceled)29. The method of ...

BIOADHESIVE AND INJECTABLE HYDROGEL

The present invention provides a novel hydrogel, methods of its use, and methods for producing the hydrogel. 1. A method of producing a hydrogel , comprising the steps of:(1) complexing a host molecule and a guest molecule, wherein the host molecule presents a hydrophobic pocket and comprises a monomer component, and wherein the host molecule and guest molecule form a physical interaction between the hydrophobic pocket and a benzene ring of the guest molecule; and(2) polymerizing the monomer compoents to form a cross-linked mesh of the host molecules and guest molecules.2. The method of claim 1 , wherein the host molecule is an acrylated β-cyclodextrin.3. The method of claim 1 , wherein the monomer component is an acrylate.4. The method of claim 1 , wherein the guest molecule is a gelatin.5. The method of claim 1 , wherein the polymerization is initiated by UV radiation.6. The method of claim 1 , wherein the host molecule and the guest molecule are placed in an aqueous solution together.7. The method of claim 1 , wherein at least one additional molecule is present in step (1) when the host molecule and the guest molecule are complexed.8. The method of claim 7 , wherein the at least one additional molecule is a pharmaceutically active ingredient.9. The method of claim 1 , wherein the host molecule is a mono-acrylated β-cyclodextrin and the guest molecule is a gelatin.10. A hydrogel comprising a cross-linked mesh of a host molecule and a guest molecule claim 1 , wherein the host molecule presents a hydrophobic pocket and comprises a monomer component claim 1 , the host molecule and guest molecule forming a physical interaction between the hydrophobic pocket and a benzene ring of the guest molecule claim 1 , and wherein the monomer components are polymerized to form the cross-linked mesh.11. The hydrogel of claim 10 , wherein the host molecule is an acrylated β-cyclodextrin.12. The hydrogel of claim 10 , wherein the monomer component is an acrylate.13. The hydrogel of ...

METHOD AND SYSTEM FOR POLYMERIZING ACRYLATES

The invention relates to a method for polymerizing acrylates using a reactor (). Reaction heat produced in the reactor () is discharged via a boiling cooler () in that gaseous vapors produced in the reactor () are supplied to the boiling cooler (), and condensed vapors are returned to the reactor () from the boiling cooler (). At least one component containing acrylate is at least partly added via the boiling cooler () and reaches the reactor () via the boiling cooler (). The invention additionally relates to a system for polymerizing an acrylate, comprising a reactor () and a boiling cooler () for discharging reaction heat produced in the reactor (). The boiling cooler () has at least one filling opening () for supplying at least one component containing acrylate. 117-. (canceled)18. A process for polymerizing acrylates by a reactor , whereheat of reaction arising in the reactor is removed by an evaporative cooler by feeding gaseous vapor formed in the reactor to the evaporative cooler and recirculating condensed vapor from the evaporative cooler to the reactor,wherein at least one component containing acrylate is introduced at least partly via the evaporative cooler and goes via the evaporative cooler into the reactor,wherein a reduced pressure, in particular in the range from 150 mbar to 350 mbar, is generated in the reactor,wherein a reduced pressure compared to atmospheric pressure prevails in the reactor during the polymerization of the acrylate.19. The process of claim 18 , wherein the at least one component contains butyl acrylate.20. The process of claim 18 , wherein a further component containing a monomer having two double bonds is at least partly introduced into the evaporative cooler.21. The process of claim 18 , wherein the at least one component is at least partly introduced from above through a cap of the evaporative cooler.22. The process of claim 18 , wherein the at least one component is at least partly introduced from above into a plurality of ...

BIOMEDICAL DEVICES CONTAINING INTERNAL WETTING AGENTS

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer. 113-. (canceled)14. A silicone hydrogel formed from a reaction mixture comprising a high molecular weight hydrophilic polymer; an effective amount of an hydroxyl-functionalized silicone-containing monomer; an ultra-violet absorbing compound; and a photochromic compound.15. The silicone hydrogel of wherein said hydrophilic polymer is selected from the group consisting of polyamides claim 14 , polylactones claim 14 , polyimides claim 14 , polylactams claim 14 , functionalized polyamides claim 14 , functionalized polylactones claim 14 , functionalized polyimides claim 14 , functionalized polylactams claim 14 , and mixtures thereof.16. The silicone hydrogel of wherein said hydrophilic polymer is selected from the group consisting of poly-N-vinyl pyrrolidone claim 14 , poly-N-vinyl-2-piperidone claim 14 , poly-N-vinyl-2-caprolactam claim 14 , poly-N-vinyl-3-methyl-2-caprolactam claim 14 , poly-N-vinyl-3-methyl-2-piperidone claim 14 , poly-N-vinyl-4-methyl-2-piperidone claim 14 , poly-N-vinyl-4-methyl-2-caprolactam claim 14 , poly-N-vinyl-3-ethyl-2-pyrrolidone claim 14 , and poly-N-vinyl-4 claim 14 ,5-dimethyl-2-pyrrolidone claim 14 , polyvinylimidazole claim 14 , poly-N—N-dimethylacrylamide claim 14 , polyvinyl alcohol claim 14 , polyacrylic acid claim 14 , polyethylene oxide claim 14 , poly 2 ethyl oxazoline claim 14 , heparin polysaccharides claim 14 , polysaccharides claim 14 , mixtures and copolymers thereof.17. The silicone hydrogel of wherein said hydrophilic polymer comprises poly-N-vinylpyrrolidone.18. The silicone hydrogel of comprising about 1 to about 15 weight % high molecular weight hydrophilic polymer1920-. (canceled)22. (canceled)23. The silicone hydrogel of wherein said hydroxyl-functionalized silicone-containing monomer is selected from the group consisting of 2-propenoic acid claim 21 , 2- ...

METHOD OF PREPARING CARBOXYLIC ACID FUNCTIONALIZED POLYMERS

Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═O)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer. 2. The method of claim 1 , wherein X is selected from bromo claim 1 , chloro and iodo.3. The method of claim 1 , wherein the organic solvent is selected from t-butanol claim 1 , benzene claim 1 , toluene claim 1 , xylenes claim 1 , tetrahydrofuran (THF) claim 1 , dimethylformamide (DMF) claim 1 , and dimethylsulfoxide (DMSO).4. The method of claim 1 , wherein the base in step (i) is selected from the group consisting of potassium t-butoxide claim 1 , butyl lithium claim 1 , sodium amide claim 1 , and sodium hydride.5. The method of claim 1 , wherein the reacting step is carried out at a temperature of about 20-80° C.6. The method of claim 5 , wherein the reacting step is carried out at a temperature of about 25-50° C.7. The method of claim 1 , wherein the reacting step is carried out for from about 0.5 hours to about 24 hours.8. The method of claim 1 , wherein the treating step is carried out at a pH of about 9 or above.9. The method of claim 8 , wherein the treating step is carried out at a pH of about 11 to about 13.10. The method of claim 8 , wherein the strong base in the treating step is an alkali metal hydroxide.11. The method of claim 10 , wherein ...

Photocurable resin composition, ink, and coating

An object of the present invention is to provide a photocurable resin composition that has excellent adhesion to plastic substrates and can form a composition with good compatibility. The present invention relates to a photocurable resin composition containing: an allylic polymer (A) produced by polymerization of an allylic compound represented by the formula (I) below; and a tackifier resin (B),

Functional Bottlebrush Polymers

An example of a bottlebrush polymer has a polymer backbone and a plurality of individual brush moieties bonded to the polymer backbone. The individual brush moieties respectively including a ketone, a hydrophilic segment, and a surface adhesive terminal group. The brush moieties can be functionalized and/or cross-linked.

PROTEIN AGGREGATION INHIBITOR

The present invention provides a protein aggregation inhibitor for use in preventing aggregation of a protein, containing a crosslinked polymer obtained by polymerizing polymerizable polymer components containing a sulfobetaine polymer obtained by polymerizing monomer components containing a sulfobetaine monomer, the sulfobetaine monomer, and a crosslinkable monomer. 1. A photoluminescent material emitting a visible light by irradiation of light , which is zeolite A comprising silver ion , zinc ion and at least one selected from the group consisting of cesium ion and rubidium ion.2. The photoluminescent material according to claim 1 , wherein the light to be irradiated has a wavelength of not less than 200 nm and not more than 450 nm.3. The photoluminescent material according to claim 2 , wherein said at least one selected from the group consisting of cesium ion and rubidium ion is cesium ion.4. The photoluminescent material according to claim 3 , wherein a total content of at least one selected from the group consisting of cesium ion and rubidium ion is not less than 1 wt % and not more than 25 wt %.5. The photoluminescent material according to claim 4 , wherein a content of silver ion is not less than 0.5 wt % and not more than 30 wt %.6. The photoluminescent material according to claim 5 , wherein a content of zinc ion is not less than 0.5 wt % and not more than 15 wt %.7. A lighting equipment comprising a light source and the photoluminescent material according to .8. The lighting equipment according to claim 7 , which is a back light for a liquid crystal display device.9. The photoluminescent material according to claim 1 , wherein said at least one selected from the group consisting of cesium ion and rubidium ion is cesium ion.10. The photoluminescent material according to claim 1 , wherein a total content of at least one selected from the group consisting of cesium ion and rubidium ion is not less than 1 wt % and not more than 25 wt %.11. The photoluminescent ...

Halogenated Wax Grafted To Low Molecular Weight Polymer And Rubber Composition

A wax-polymer compound includes (a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and (b) a halogenated hydrocarbon wax component. The polymer component is grafted to the halogenated hydrocarbon wax component, and the wax-polymer compound has a number average molecular weight of about 1,000 to about 100,000, A method of making the wax-polymer compound and a coated silica particle are also disclosed. A rubber composition includes a rubber elastomer comprising a polymerized unsaturated monomer and optionally a polymerized vinyl-aromatic monomer, the elastomer having a number average molecular weight of about 100,000 to about 1,000,000. It further includes a filler in an amount of about 5 to about 200 phr, the filler comprising carbon black, silica, or both; and a wax-polymer additive. 1. A wax-polymer compound , comprising:(a) a polymer component that is a polymerized unsaturated monomer, optionally copolymerized with a vinyl-aromatic monomer, and(b) a halogenated hydrocarbon wax component;the polymer component grafted to the halogenated hydrocarbon wax component, the compound having a number average molecular weight of about 1,000 to about 100,000.2. The wax-polymer compound of claim 1 , wherein the halogenated hydrocarbon wax component is a chlorinated paraffin wax.3. The wax-polymer compound of claim 1 , wherein the halogenated hydrocarbon wax component is a solid at 0° C.4. The wax-polymer compound of claim 1 , wherein two or more polymer chains of the polymer component are bonded to a single halogenated hydrocarbon wax component.5. The wax-polymer compound of claim 1 , wherein the polymer component is grafted to the halogenated hydrocarbon wax component at more than one graft location.6. The wax-polymer compound of claim 1 , wherein the halogenated hydrocarbon wax component is halogenated along a hydrocarbon chain backbone of the wax.7. The wax-polymer compound of claim 1 , wherein the wax- ...

Magnetic particles for diagnostics

The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.

Grafting method

Grafting method

Process for preparing emulsions by polymerization of aqueous monomer-polymer dispersions

Process for the preparation of aqueous homogeneous polymer emulsion which comprises mixing, generally with agitation or under shear conditions, water, surfactant, at least one polymer, e.g., cellulosic compounds, and at least one monomer, e.g., acrylics, methacrylics, styrene, etc., the polymer being soluble in said monomer, to form a dispersion of polymer-monomer particles in water; then subjecting said dispersion to conditions such that the monomer within the particles become polymerized by free radical polymerization thereby forming a substantially homogeneous blend of at least two polymers within the particles of the emulsion. The particles have on the average a diameter of 5 microns or less.

High impact graft copolymers

High impact polymer having broad rubber particle size distribution is prepared by a bulk-bulk-suspension three step polymerization process. A portion of a rubber-in-monomer solution is bulk polymerized to form a small average rubber particle size. The remaining portion of the same or a different rubber solution having the same or a different concentration is added to the system and stirred or polymerized until the desired distribution of rubber particle size is attained in the system. The system is then polymerized in suspension to form the desired high impact product.

Radiation polymerized coated article and method of making same

A radiation polymerizable protective coating composition or paint, coated articles bearing such a protective radiation polymerizable paint which, on a non-polymerizable solvent, pigment, initiator and particulate filler-free basis, consists essentially of a binder solution of: (1) between about 90 and about 10 parts of a saturated, thermoplastic vinyl polymer prepared from at least about 85 weight percent of monofunctional vinyl monomers; (2) between about 10 and about 90 parts of vinyl solvent monomers for said vinyl polymer, at least about 10 weight percent, preferably at least about 30 weight percent, of said solvent monomers being selected from the group consisting of divinyl monomers, trivinyl monomers, tetravinyl monomers and mixtures thereof; and (3) between about 1.0 and about 15.0 parts per 100 parts of the total of said thermoplastic vinyl polymer and said vinyl solvent monomers of a triester of phosphoric acid bearing one or more sites of vinyl unsaturation. The composition exhibits excellent quality and good adhesion to a variety of substrates, in particular metals, including vapor deposited metals. Preferred articles bearing such a coating are prepared by: applying a base coat to a substrate and curing the same; vapor depositing a coating of metal over the surface of the base coat; and applying to and curing on the surface of the deposited metal the radiation polymerizable topcoat, preferably with little or no pigment contained therein.

Process for the production of styrene polymers

A process for polymerizing a styrene monomer or a styrene monomer having a rubber-like polymer dissolved therein by using, as the catalyst, an organic peroxide of the formula ##STR1## where R 1 and R 2 are the same or different radicals selected from the group consisting of hydrogen, alkyl radicals of from 1 to 5 carbon atoms, and phenyl. Preferably, the polymerization is continuously carried out by bulk or solution polymerization while the reaction mixture present in the polymerization zone is kept in such a mixed state as to make it substantially homogeneous.

Polysiloxane-grafted copolymer release coating sheets and adhesive tapes

Release coating compositions comprising polysiloxane-grafted copolymer and blends thereof with other polymeric materials on sheet materials and the back side of adhesive tapes are provided. Controlled and predictable release is achieved through variation of the number and the length, e.g., the molecular weight, of polysiloxane grafts in the copolymer.

Graft polymers of polymerizable monomers and olefin polymers

Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is substantially insoluble in the monomer but is capable of absorbing the monomer. In a preferred aspect, a vinyl halide polyolefin graft polymer is produced by reacting a solid polyolefin particle with a vinyl halide monomer in which the polyolefin is substantially insoluble, but is capable of absorbing the monomer. The solid particles can be contacted with the monomer in one step or in stages. When the stage-wise reaction is continued until the proportion of polyolefin in the polymer product is about 2 to about 20 weight percent, the resulting product can be formed to a transparent or translucent article. When a small proportion of solid polyolefin is employed in the polymerization process, both a graft polymer and a polymer of the unsaturated monomer are simultaneously produced in the same reactor and can be readily mechanically separated into the individual products.

Monovinylaromatic polymer with improved stress crack resistance

A process is disclosed for improving the environmental stress crack resistance and other desirable properties of impact-resistant, elastomer-modified monovinylaromatic compounds, said process utilizing a combination of polymerization initiators, including perketals and peroxycarbonates.

Control of particle size in vinyl monomer polymerization

A PORTION OF THE POLYMER PARTICLES WITHDRAWN FROM A VAPOR PHASE POLYMERIZATION REACTOR ARE GROUND TO PRODUCE SEED POLYMER PARTICLES WHICH ARE THEN IMPREGNATED WITH A CATALYST AND REINTRODUCED INTO THE POLYMERIZATION REACTOR. THE PORTION TO BE GROUND CAN BE THE PARTICLES HAVING A PARTICLE SIZE GREATER THAN A DESIRED VALUE WHICH ARE OBTAINED BY SCREENING THE REACTOR EFFLUENT. POLYMER PARTICLES BELOW A MINIMUM SIZE CAN ALSO BE RETURNED TO THE REACTOR. STABILIZERS CAN BE ADDED TO THE REACTOR TO IMPROVED THE PROPERTIES OF THE POLYMER.

Process for the bulk polymerization of alkenylaromatic compounds

There is described a process for the homopolymerization or copolymerization in the bulk of alkenylaromatic compounds in a continuous flow agitation vessel. The feed of the monomer(s) is preheated and a controlled larger or smaller part of the preheated monomer feed is cooled, depending on the deviation of the temperature of the contents of the reaction vessel from the determined value. The inventive process ensures an improved constancy of the reaction temperature, and, consequently, of the molecular weight of the polymer obtained.

Ion exchange resins

A process for preparing copolymer beads suitable for conversion to ion exchange resins, comprising forming a polymeric matrix containing a plurality of free radicals, and continuously adding to said matrix, under conditions suitable for polymerizing a monomer feed which is imbibed by and polymerized within the matrices. ion exchange resins prepared from beads made by such process exhibit improved osmotic and mechanical properties.

Actinically-crosslinkable siloxane-containing copolymers

The invention provide a class of actinically-crosslinkable silicone-containing prepolymers obtained by functionalizing an intermediary copolymer to have two or more thiol or ethylenically-unsaturated groups covalently attached thereto, wherein the intermediary copolymer is an atom-transfer radical polymerization (ATRP) product of a reactive mixture comprising a polysiloxane ATRP macroinitiator and at least one hydrophilic vinylic monomer. The present invention is also related to silicone hydrogel contact lenses made from a prepolymer of the invention and methods for making the contact lenses in a cost-effective way and with high consistency and high fidelity to the original lens design.

Grafting of polymers with fluorocarbon compounds

Fluorine containing terminal olefins may be grafted onto polymers containing hydrogen bound to carbon in the presence of free radicals. The olefins may also contain other functional groups. The resulting novel grafted polymers are useful as molding resins, for coating and as catalysts.

Polyurethanes and graft copolymers based on polyurethane and their use in the production of coating materials, adhesives and sealants

Polyurethan (B) mit seitenständigen und/oder endständigen Ethenylarylengruppen, herstellbar indem man ein Polyurethanpräpolymer, das freie Isocyanatgruppen enthält, mit einem Addukt umsetzt, das erhältlich ist, indem man ein Ethenylarylenmonoisocyanat mit einem Polyol, Polyamin und/oder einer Hydroxylgruppen und Aminogruppen enthaltenden Verbindung im Molverhältnis 1 : 1 umsetzt; DOLLAR A Pfropfmischpolymerisat, enthaltend einen hydrophoben Kern aus mindestens einem Monomeren und eine hydrophile Schale, die ein Polyurethan enthält oder hieraus besteht, oder einen hydrophoben Kern, der ein Polyurethan enthält oder hieraus besteht, und eine hydrophile Schale aus mindestens einem Monomeren, herstellbar unter Verwendung des Polyurethans (B); sowie DOLLAR A Pfropfmischpolymerisat, enthaltend einen hydrophoben Kern aus mindestens einem Monomeren und eine hydrophile Schale, die ein Polyurethan enthält oder hieraus besteht, herstellbar indem man mindestens ein hydrophiles olefinisch ungesättigtes Polyurethan mit seitenständigen oder seitenständigen und endständigen Ethenylarylengruppe in einem wäßrigen Medium dispergiert, wonach man mindestens ein hydrophobes Monomer in der Gegenwart des Polyurethans in Emulsion radikalisch (co)polymerisiert. Polyurethane (B) with pendant and / or terminal ethenylarylene groups, can be prepared by reacting a polyurethane prepolymer containing free isocyanate groups with an adduct which can be obtained by using an ethenylarylene monoisocyanate with a compound containing polyol, polyamine and / or a hydroxyl group and amino group in a molar ratio of 1: 1; DOLLAR A graft copolymer, comprising a hydrophobic core composed of at least one monomer and a hydrophilic shell containing or consisting of a polyurethane, or a hydrophobic core containing or consisting of a polyurethane and a hydrophilic shell composed of at least one monomer, which can be prepared using polyurethane (B); and DOLLAR A graft copolymer, comprising a hydrophobic core composed ...

Polyurethane und Pfropfmischpolymerisate auf Polyurethanbasis sowie ihre Verwendung zur Herstellung von Beschichtungsstoffen, Klebstoffen und Dichtungsmassen

Polyurethan (B) mit mindestens einer seitenständigen und/oder mindestens einer endständigen Ethenylarylengruppe, herstellbar indem man (3) mindestens ein Polyurethanpräpolymer (BI), das mindestens eine freie Isocyanatgruppe enthält, mit (4) mindestens einem Addukt (B2) so umsetzt, daß keine freien Isocyanatgruppen im Reaktionsgemisch mehr nachweisbar sind, wobei Addukt (B2) erhältlich ist, indem man (2.1) mindestens ein Ethenylarylenmonoisocyanat der allgemeinen Formel 1: CH 2 =C(R)-A-X-NCO (I), worin die Variablen die folgende Bedeutung haben: A substituierter oder unsubstituierter C 6 -C 20 -Arylenrest; R Wasserstoffatom, ein Halogenatom, eine Nitrilgruppe, eine substituierte oder unsubstituierte Alkyl-, Cycloalkyl-, Alkylcycloalkyl-, Cycloalkylalkyl-, Aryl-, Alkylaryl-Cycloalkylaryl- Arylalkyl- oder Arylcycloalkylrest; und X zweibindiger organischer Rest. und (2.2) mindestens ein Polyol, Polyamin und/oder mindestens eine mindestens eine Hydroxylgruppe nnd mindestens eine Aminogruppe enthaltenden Verbindung so miteinander umsetzt, daß mindestens eine isocyanatreaktive Gruppe im Addukt (B2) verbleibt.

Core - shell particles, their production and use

Separating material

The present invention provides a separating material producable by a) providing a solid substrate, having amino­functional groups coupled to the substrate surface, b) covalently coupling of the amino-functional groups with a thermally labile radical initiator, c) contacting the substrate surface with a solution of polymerizable monomers under conditions, where thermally initiated graft copolymerization of the monomers takes place, to form a structure of adjacent functional polymer chains on the surface of the substrate. The present invention further provides a method for the production of a separating material by a) providing a solid substrate, having aminofunctional groups coupled to the substrate surface, b) covalently coupling of the aminofunctional groups with a thermally labile radical initiator, c) contacting the substrate surface with a solution of polymerizable monomers under conditions, where thermally initiated graft copolymerization of the monomers takes place, to form a structure of adjacent functional polymer chains on the surface of the substrate.

Dendrimere pfropfpolymerisate

Die Erfindung betrifft dendrimere Pfropfpolymerisate auf der Grundlage von hydroxylgruppenhaltigen Basisträgern, auf deren Oberflächen Polymere kovalent gebunden sind, wobei a) der Basisträger aliphatische Hydroxylgruppen enthält, b) die kovalentgebundenen Polymeren über eine endständige Monomereinheit an den Basisträger gebunden sind, c) die Polymeren an den Verzweigungsstellen der dendrimeren Struktur Monomereinheiten der Formel (II) enthalten, d) die dendrimeren Polymeren Monomereinheiten der Formel (III) enthalten, worin R?1, R2 und R3¿ unabhängig voneinander H oder CH¿3?, R?4 H, C¿1-C5-Alkyl oder C6-C12-Aryl, n eine ganze Zahl zwischen 1 und 5, ein Rest X OH und der andere Rest X eine endständige Monomereinheit einer weiteren Polymerkette darstellt, und Y einen Rest, der einen Separationseffektor enthält, bedeuten. Die Erfindung betrifft weiterhin die Herstellung dieser dendrimeren Pfropfpolymerisate und ihre Verwendung als Trennmaterialien für die Flüssigkeitschromatographie.

Waterborne coating compositions for automotive applications

A waterborne coating composition having a total solids content at application of greater than 30 percent, contains pigment and a dispersion of polymeric microparticles in an aqueous medium. The microparticles contain greater than 30 percent by weight based on the microparticles of a substantially hydrophobic polymer which is essentially free of repeating acrylic or vinyl units in the backbone, has a molecular weight greater than 300 and is adapted to be chemically bound into the cured coating composition. The aqueous medium of the microparticle dispersion is substantially free of water soluble polymer.

Diamond polymer brushes

A composite comprising at least one diamond/polymer brush and a method of making the composite comprising covalently bonding at least one polymer to said diamond surface.

Olefin polymerization

A process for producing a novel-highly active lanthanide containing catalysts comprising products formed by reacting a lanthanide halide, and an electron doner ligand with an organometal cocatalyst component and its use in the polymerization of olefins, especially olefins such as ethylene, 1,3-butadiene, isoprene and the like. In one embodiment, an organic base is used to increase catalyst activity in those instances where rare earth metal halide-ligand complex is formed with a ligand containing an acidic proton. In another embodiment, diolefins and vinyl aromatics are polymerized in a two-stage process employing a lanthanide complex-organometal cocatalyst in the first stage and a free radical initiator in the second stage.

Metal catalyzed synthesis of hyperbranched ethylene and/or α-olefin polymers

Oily hyperbranched polymers derived from ethylene, propylene, butene and/or a C 5 -C 24 α-olefin, and a method for their synthesis, are disclosed. The polymers have non-regular microstructures and are characterized by a ratio ()of methyl hydrogens centered around 0.85 ppm on the 1H-NMR spectra of the polymers relative to total aliphatic hydrogens of from about 0.40 to about 0.65 for polymers derived from ethylene or butene, and a ratio ()of from greater than 0.50 to about 0.65 for polymers derived from propylene. A method for grafting hyperbranched polymers derived from ethylene, propylene, butene and/or a C 5 -C 24 α-olefin onto aromatic rings in organic molecules and polymers, and the resulting grafted materials, are also disclosed. The hyperbranched polymers and grafted materials are useful, for example, as lubricants and lubricant additives.

Hybrid particle composite structures with reduced scattering

Supersatmospheric reaction

A polymerization process produces polymers that are insoluble in a reaction mixture that was homogeneous before the polymer began to form. A dispersing agent in the polymerizing system (i.e., the reaction mixture plus the dispersing agent) allows a kinetically stable dispersion of the polymer to be formed in this polymerizing system. The polymerization process is performed in a fluid held under superatmospheric conditions such that the fluid is a liquid or a supercritical fluid; the fluid being carbon dioxide, a hydroflurocarbon, a perfluorocarbon, or a mixture of any of the foregoing.

超気圧反応

(57)【要約】 重合体が形成され始まる前には均質である反応混合物に不溶である重合体を製造する重合方法。重合系中の分散剤（すなわち、反応混合物及び分散剤）は、重合系に形成される重合体の動的安定な分散を行う。また、オレフィンの複分解方法は重合体の生成、存在する重合体の架橋又は架橋した重合体の解架橋をする。両者の重合方法及び複分解方法は超気圧条件下で行われる。

分散組成物、重合性組成物、遮光性カラーフィルタ、固体撮像素子、液晶表示装置、ウェハレベルレンズ、及び撮像ユニット

【課題】チタンブラックの分散性が高く、しかもチタンブラックが沈降せず保存安定性の高い分散組成物を提供し、更に、基板への塗布性が良好で均一な膜厚が得られ、パターン成形したときには未露光部における残渣が抑制され、露光・現像でのステップが小さく、パターン形状が良好な重合性組成物を提供する。 【解決手段】（Ａ）チタンブラック、（Ｂ）グラフト共重合体、及び（Ｃ）溶媒を含む分散組成物である。 【選択図】図１

Dispersion composition, polymerizable composition, light-shielding color filter, solid-state image pick-up element, liquid crystal display device, wafer level lens, and image pick-up unit

A dispersion composition is provided in which the dispersibility of titanium black is high, the sedimentation of titanium black over time is suppressed, and overall dispersibility and storage stability are high. Further, a polymerizable composition is provided in which favorable coating property on a substrate and even film thickness can be obtained, generation of residue in an unexposed region when a pattern is formed can be suppressed, and favorable pattern shape having any steps after exposure/development can be obtained. The dispersion composition contains (A) titanium black, (B) a graft copolymer and (C) a solvent.

接枝聚合物及其制造方法

本发明提供与以往相比导入成本低，能够以简便的操作在保持胺的特性的条件下安全且稳定地制造的接枝共聚物及其制造方法。一种多胺接枝聚合物，其是使多胺衍生物与烯属不饱和单体(c)聚合而得的，所述多胺衍生物是使具有至少1个氨基的高分子化合物(a)与具有至少1个环氧基的化合物(b)反应而得的；以及一种多胺接枝聚合物的制造方法，具有在多胺衍生物中加入烯属不饱和单体(c)及自由基聚合引发剂进行聚合的工序，所述多胺衍生物是在极性溶剂中使具有至少1个氨基的高分子化合物(a)与具有至少1个环氧基的化合物(b)反应而得的。

METHOD FOR PRODUCING AQUEOUS, HIGH-CONCENTRATED BIMODAL PLASTIC DISPERSIONS

Vinylidene chloride copolymerization in presence of preformed seed latex

Method of polymerizing vinyl chloride

Abstract The present invention comprises a method of preparing vinyl chloride polymers or vinyl chloride copolymers suitable for the preparation of plastisols. The method can be used in polymerizations, wherein n pre-emulsion of a substance having a very low solubility in water, is caused to swell by the vinyl chloride monomer, whereafter the monomer emulsion obtained is subjected to polymerizing conditions. According to the invention the emulsion is stabilized, and, by polymerizing in the presence of an stabilizing latex, it is possible to avoid the latex obtained becoming unstable. In this way it is possible to prepare polymers having a suitable particle size and particle size distribution to enable low viscosity stable plastisols to be prepared therefrom.

Method for preparing latex

중합에 (a) 하나 또는 그 이상의 미세 분산 단량체의 하나 또는 그 이상의 미세 분산물과 (b) 하나 또는 그 이상의 종자 종합체의 하나 또는 그 이상의 종자 라텍스를 참여시켜서 하는 하나 또는 그 이상의 단량체의 배취식 라디칼 중합에 의한 라텍스의 제조방법 Batches of one or more monomers by incorporating (a) one or more microdispersions of one or more microdispersion monomers and (b) one or more seed latexes of one or more seed aggregates Manufacturing method of latex by radical polymerization

Method for producing core-shell emulsion polymer and dispersion composition containing the same

Method for Preparing Polymer Particles

A polymer particle ( 10 ) useful for opacifying includes a polymer core ( 12 ) and a polymer sheath ( 16 ) surrounding the polymer core ( 12 ). The polymer core ( 12 ) is produced by polymerizing the polymer sheath ( 16 ) around the polymer core ( 12 ) in an emulsion. After at least a portion of the polymer core ( 12 ) is formed, a non-homopolymerizing monomer is added to the emulsion.

Method for producing graft copolymer latex of core / shell dispersed particles having improved phase bond between core and shell

Preparation of an aqueous polymer dispersion

Abstract of the Disclosure: In a process for preparing a final aqueous polymer dispersion having a solids volume concentration of 50% by volume or more, free-radically polymerizable monomers other than vinyl or vinylidene halides are subjected to a free radical aqueous emulsion polymerization by the feed stream addition process in the presence of an aqueous starting polymer dispersion whose dispersed starting polymer particles have a certain minimum diameter.

Magnetic particles for diagnostics

Magnetic particles for diagnostics

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

Preparing aqueous emulsions

Organic polymer particles and methods of preparation therefor, magnetic particles for diagnosis, particles having a carboxyl group and methods of preparation therefor, and probe-bound particles and methods of preparation thereof

Organic polymer particles and methods of preparation therefor, magnetic particles for diagnosis, particles having a carboxyl group and methods of preparation therefor, and probe-bound particles and methods of preparation thereof

Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same

The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.

Aqueous dispersion of polymeric particles

An aqueous dispersion of polymeric particles and process for forming thereof is provided. The particles comprise a first polymer comprising, as polymerized units, at least one monoethylenically unsaturated monomer and at least one multi-ethylenically unsaturated monomer and when dry, at least one void; and at least one second polymer, substantially encapsulating the first polymer, comprising, as polymerized units, at least one ethylenically unsaturated monomer.

PARTICULATE GRAFT POLYMERIZED WITH IMPROVED LIABILITY BETWEEN THE GRAIN BASE AND THE Graft Shell

Process for preparing an aqueous emulsion or dispersion of a partly water-soluble material, and optionally further conversion of the prepared dispersion or emulsion to a polymer dispersion when the partly water-soluble material is a polymerizable monomer

The invention provides a process for preparing an aqueous emulsion or dispersion of a partly water-soluble material, and optionally further conversion of the prepared dispersion or emulsion to a polymer dispersion when the partly water-soluble material is a polymerizable monomer. In a first step a dispersion of polymer particles is prepared containing one or more materials having a very low solubility in water, then in a second step there is added the partly water-soluble material which diffuses into the particles from the first step, and then, if the partly water-soluble material is a polymerizable monomer, polymerization may be effected.

Monodisperse polymer particles and dispersions thereof

The invention provides monodisperse polymer particles and dispersions thereof, said particles having a diameter of preferably 5 μm or more. Such polymer dispersions are prepared by in a first step preparing a dispersion of smaller monodisperse polymer particles containing one or more materials having a very low solubility in water, and a relatively low molecular weight, then in a second step adding a partly water-soluble monomer which diffuses into the particles from the first step, and then effecting polymerization.

Process for producing powdery linear polymer having improved powder properties

A powdery linear polymer having a narrow particle size distribution with little dusting and excellent in anti-blocking property is recovered from a latex of a linear polymer containing a large proportion (35 - 75 wt.%) of soft polymer (S) component through a two-step coagulation process including a first (moderate coagulation) step causing 70 - 98 wt.% of the coagulation. The linear polymer in the latex has a multilayer structure comprising a linear polymer (S) having a glass transition temperature below 40°C and a linear polymer (H) having a higher glass transition temperature disposed in totally at least two layers and containing 35 - 75 wt.%, as a whole, of the linear polymer (S) with the proviso that the linear polymer (S) cannot be contained in excess of 30 wt.% in an outermost layer of the multilayer structure.

POLYMER DISPERSION WITH CHROMATIC EFFECT.

Procedimiento para mejorar el brillo cromático y la estabilidad de un sistema polímero cromático constituido por una matriz y por partículas polímeras discretas, que están distribuidas en la matriz de conformidad con una estructura reticular definida en el espacio, caracterizado porque se aplica superficialmente sobre la capa polímera cromática una capa polímera transparente. Procedure for improving the chromatic brightness and stability of a chromatic polymer system consisting of a matrix and discrete polymer particles, which are distributed in the matrix in accordance with a reticular structure defined in space, characterized in that it is applied superficially on the polymer layer Chromatic a transparent polymeric layer.

Polycarbonate-based thermoplastic resin composition and process for producing the same

A polycarbonate-based thermoplastic resin composition characterized by comprising a polycarbonate and a substantially gel-free polymer obtained by polymerizing an aromatic vinyl monomer in the presence of a polymer obtained by polymerizing a specific alkyl (meth)acrylate, an aromatic vinyl monomer, and a monomer having two or more unsaturated groups. The composition has excellent moldability (flowability, etc.) while having the intact mechanical properties (impact strength, etc.) inherent in the polycarbonate and has an excellent balance between moldability and mechanical properties. Due to the excellent balance, the composition enables size increase and thickness reduction in molded articles in various fields, especially in the field of domestic electrical appliances and housings for OA apparatuses. The composition is of great industrial value.

Graft polymer and method of producing the same

Polímero de injerto de poliamina que puede obtenerse polimerizando un derivado de poliamina y (c) un monómero etilénicamente insaturado, en el que el derivado de poliamina puede obtenerse mediante: i) una reacción entre (a) un compuesto polimérico que tiene al menos un grupo amino y (b) un compuesto que tiene al menos un grupo epoxi; o ii) polimerización de un monómero de alilamina modificado que puede obtenerse mediante una reacción entre (a') un monómero de alilamina que tiene al menos un grupo alilo y al menos un grupo amino y (b) un compuesto que tiene al menos un grupo epoxi; en el que el compuesto que tiene al menos un grupo epoxi es al menos un compuesto seleccionado de óxido de etileno, glicidol, óxido de propileno, óxido de butileno, óxido de 2,3-butileno, 1,2-epoxihexano, 1,2- epoxihexadecano, 1,2-epoxioctano, glicidil metil éter, etil glicidil éter, glicidil isopropil éter, isocianurato de triglicidilo, epiclorhidrina, epibromohidrina, 2-(clorometil)-1,2-epoxibutano, 1,2-epoxiciclopentano, 1,2- epoxiciclohexano, 3,4-epoxitetrahidrofurano, óxido de estireno, glicidil fenil éter, 4-glicidiloxicarbazol, 1,2:3,4- diepoxibutano, diglicidil éter de 1,4-butanodiol, diglicidil éter de etilenglicol, 3-glicidoxipropiltrimetoxisilano, 3- glicidiloxipropil(dimetoxi)metilsilano, 1,2-epoxi-1H, 1H, 2H, 3H, 3H-heptadecafluoroundecano, ácido succínico epoxídico, butirato de glicidilo, N-glicidilftalamida, nitrobenzsulfonato de glicidilo que tiene la siguiente fórmula **(Ver fórmula)** y p-toluenosulfonato de glicidilo. Polyamine graft polymer obtainable by polymerizing a polyamine derivative and (c) an ethylenically unsaturated monomer, wherein the polyamine derivative can be obtained by: i) a reaction between (a) a polymeric compound having at least one group amino and (b) a compound having at least one epoxy group; or ii) polymerization of a modified allylamine monomer that can be obtained by a reaction between (a ') an allylamine monomer having at least one ...

Production of polymer microparticles having water-insoluble chemicals immobilized therein

Polymer microparticles having immobilized therein a water-insoluble substance such as oil-soluble dyes or pigments are produced by a method which includes the steps of forming droplets of a solution of a self-emulsifiable resin in a nonaqueous solvent containing the water-insoluble substance and an ethylenically unsaturated monomer suspended in an aqueous medium, and then allowing the monomer in the droplets to polymerize in situ.

Process for the preparation of monodisperse polymer particles

Process for the preparation of functionalized polymer particles

A process for the preparation of amine-functionalized vinyl polymer particles which process comprises suspension polymerizing aminostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.

Process for the preparation of monodisperse polymer particles

A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.

Process for the preparation of functionalised polymer particles

A process for the preparation of amine-functionalized vinyl polymer particles which process comprises suspension polymerizing minostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.

LIGHT SENSITIVE DIMENSION AND LIGHT SENSITIVE LAMINATE

接着剤組成物

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Heat-curable resin composition

The present invention relates to a resin composition comprising an at least bifunctional prepolymer (A) curable under ection of heat, a telechelic elastomer and a particulate material having an elastomeric core and a thermoplastic shell. Layers and patterns which are produced using the formulation according to the invention have excellent adhesion properties, chemical stability, good electrical properties and high resistance to rapid temperature ranges. The compositions are suitable in particular as solder resists in the production of circuit boards.

Heat-curable resin composition

The present invention relates to a resin composition comprising an at least bifunctional prepolymer (A) curable under the action of heat, a telechelic elastomer and a particulate material having an elastomeric core and a thermoplastic shell. Layers and patterns which are produced using the formulation according to the invention have excellent adhesion properties, chemical stability, good electrical properties and high resistance to rapid temperature ranges. The compositions are suitable in particular as solder resists in the production of circuit boards.

Resin composition

The invention relates to a composition comprising an at least bifunctional acidic prepolymer (A) curable under the action of heat and a compound of the formula (I) in which A is a mono- to tetravalent, saturated or unsaturated alkyl group having 1 to 60 carbon atoms, a mono- to tetravalent aryl group, a mono- or dialkylamino group having 1 to 4 carbon atoms, an alkenylene group having 2 to 4 carbon atoms, a carboxyalkylene group or an alkoxycarbonylalkylene group having 1 to 4 carbon atoms, n is 1 or 2, m is 2-n, q is a number from 0 to 3, R1 is hydrogen or an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms and X is a radical of the formula in which R3 and R4 are identical or different and, independently of one another, are hydrogen, a straight-chain or branched alkyl group or hydroxyalkyl group having 1 to 5 carbon atoms, or R3 and R4, together with the carbon atom to which they are bonded, form a cycloaliphatic ring. The composition is suitable for the production of printed circuits.

Divinyl paint composition and painting process

A SUBSTRATE IS COATED WITH A FILM-FORMING COMPOSITION COMPRISING A UNIQUE DIVINYL COMPOUND AND THE COATING IS CONVERTED TO A TENACIOUSLY ADHERING, SOLVENT-RESISTANT, WEAR AND WEATHER-RESISTANT, PREFERABLY IN THE FORM OF AN ELECTRON BEAM. THIS DIVINYL COMPOUND IS FORMED BY FIRST REACTING A DIEPOXIDE WITH ACRYLIC ACID AND/OR METHACRYLIC ACID AND SUBSEQUENTLY REACTING THE RESULTANT ESTER CONDENSATION PRODUCT WITH A SATURATED ACYL HALIDE.

Tetravinyl paint composition and painting process

A SUBSTRATE IS COATED WITH A FILM-FORMING COMPOSITION COMPRISING UNIQUE TETRAVINYL COMPOUND AND THE COATING IS CONVERTED TO A TENACIOUSLY ADHERING, SOLVENT-RESISTANT, WEAR-AND-WEATHER-RESISTANT COATING BY EXPOSING THE COATED SUBSTRATE TO IONIZING RADIATION, PREFERABLY IN THE FORM OF AN ELECTRON BEAM. THIS TETRAVINYL COMPOUND IS FORMED BY FIRST REACTING A DIEPOXIDE WITH ACRYLIC ACID AND/ OR METHACRYLIC ACID AND SUBSEQUENTLY REACTING THE RESULTANT ESTER CONDENSATION PRODUCT WITH A VINYL UNSATURATED ACYL HALIDE.