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| Number | Title | Issue Date |
| 8173757 | Process for production of polymer powders containing vinylformamide units A process for producing a polymer powder comprising vinylformamide units by free radical polymerization of an aqueous solution of N-vinylformamide and if appropriate other monomers and drying the polymer which comprises an aqueous monomer solution comprising N-vinyl... | 05/08/2012 |
| 8138290 | High water content ophthalmic devices An ophthalmic device is disclosed that is a polymerization product of a monomeric mixture comprising (a) a major amount of a non-silicone-containing hydrophilic monomer; (b) a hydrophobic monomer; and (c) a crosslinking agent, wherein the ophthalmic device has an eq... | 03/20/2012 |
| 8138289 | Imprinted polymeric materials for binding various targets such as viruses Imprinted polymeric materials that selectively bind to a template article. Various types of template articles may be targeted by the imprinted polymeric materials, including microorganisms (e.g., viruses or bacteria) or biologic macromolecules (e.g., proteins or DNA... | 03/20/2012 |
| 8044156 | Multi-purpose polymers, methods and compositions Disclosed are multi-purpose polymers that are the polymerization product of a monomer mixture comprising at least one amino-substituted vinyl monomer; at least one nonionic vinyl monomer; at least one associative vinyl monomer; at least one semihydrophobic vinyl sur... | 10/25/2011 |
| 8022158 | Wettable hydrogels comprising acyclic polyamides The present invention relates to biomedical devices, and particularly contact lenses comprising a polymer having entangled therein at least one acyclic polyamide. ... | 09/20/2011 |
| 8013092 | Waterborne coating A waterborne coating produced form a composition containing a binder resin having post crosslinking groups, an associative thickener having post crosslinking groups, a dispersant having post crosslinking groups, and a reactive diluent having post crosslinking groups... | 09/06/2011 |
| 7989572 | Polyvinyl ultraviolet light absorbers for personal care UV-absorbing polymers and copolymers suitable for Composition into sunscreens for the protection of human skin. The UV-absorbing chromophoric monomers chosen are simple and easily synthesized. With the correct choice of chromophoric monomer or mixture of monomers, p... | 08/02/2011 |
| 7932339 | Method for producing water-soluble comb-shaped copolymers Method for producing a comb-shaped copolymer whose skeleton is of an acrylamide, acrylic acid, acryloyl aminoethanol or dimethyl acrylamide type and on which poly(N-alkyl acrylamide) or poly(N,N-5 dialkyl acrylamide lateral segments are grafted, includes (a) produci... | 04/26/2011 |
| 7932338 | Brominated polymers, and fire retardant articles comprising them The present invention provides a polymer, an aqueous suspension of a polymer, methods for obtaining them, and fire-retardant products comprising a polymer and antimony oxide. The polymer of the invention is made of (i) at least one non-brominated monomer and (ii) at... | 04/26/2011 |
| 7732550 | Stimuli-responsive polymer utilizing keto-enol tautomerization and stimuli-responsive separating material and chemical-releasing capsule comprising the same A stimuli-responsive polymer derivative utilizing keto-enol tautomerization. Also disclosed are a simple process for producing an N-acyl(meth)acrylamide derivative which can be used as a monomer for the stimuli-responsive polymer, a process for the production of an ... | 06/08/2010 |
| 7514514 | Photoactive copolymer A novel photoactive copolymer and its use as orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multilayer systems. The copolymer contains side chains incorporating photoreactive groups and simultaneous... | 04/07/2009 |
| 7423074 | Polysiloxane prepolymers for biomedical devices A polysiloxane copolymer that is useful for forming biomedical devices comprises blocks (I) and (II) and is terminated at each end with an ethylenically unsaturated radical: (*Dii*Diol*Dii*PS)x (I) (*Dii*PS)y (II... | 09/09/2008 |
| 7417101 | Thermo-responsive water-soluble polymers for viscosity switch A thermal responsive, water soluble copolymer is disclosed, which comprises the co-polymerization product of: (a) 0.5˜20 wt % of N-isopropyl acrylamide (NIPAAm); (b) 0.5˜20 wt % of 1-vinyl-2-pyrrolidinone (VPD); (c) 0.01˜10 wt % of acrylic acid (AA); and (d) 80˜... | 08/26/2008 |
| 7399817 | Olefin copolymers containing hydrolytically cleavable linkages and use thereof in degradable products The invention is directed to olefin copolymers composed of nonhydrolyzable monomer units and hydrolyzable monomer units, the latter resulting from copolymerization of monomers containing a linkage that is hydrolytically cleavable in the presence of aqueous base or a... | 07/15/2008 |
| 7393908 | Cross-linked, water-swellable polymer and method for producing the same The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomer... | 07/01/2008 |
| 7378479 | Multi-purpose polymers, methods and compositions Disclosed are multi-purpose polymers that are the polymerization product of a monomer mixture comprising at least one amino-substituted vinyl monomer; at least one nonionic vinyl monomer; at least one associative vinyl monomer; at least one semihydrophobic vinyl sur... | 05/27/2008 |
| 7375174 | Acrylic composition and a curable coating composition including the same An acrylic composition includes the reaction product of an acrylic polymer, a carboxylic acid compound, and an alkyl carbamate. The acrylic polymer includes the reaction product of a functionalized monomer, a first compound reactive with the functionalized monomer t... | 05/20/2008 |
| 7371783 | Alkali-soluble maleimide copolymer and liquid crystal display comprising the same Provided is an alkali-soluble maleimide-based copolymer which comprises, as essential constituents, 5 to 50% by mass of a maleimide monomer unit which is at least one unit selected from the group consisting of a N-cyclohexylmaleimide monomer unit, a N-benzylmaleimid... | 05/13/2008 |
| 7365142 | Polyelectrolyte complex films for analytical and membrane separation of chiral compounds The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates, capillary tubes, chromatographic packing material, and monolithic stationa... | 04/29/2008 |
| 7335703 | Polyolefin graft copolymer prepared in the presence of coordination polymerization catalyst based on late transition metal complex and method for making the same A novel polyolefin graft copolymer prepared by graft-copolymerizing an olefin monomer with a (meth)acryl macromonomer or an isobutylene macromonomer in the presence of a coordination polymerization catalyst based on a late transition metal complex and a method for m... | 02/26/2008 |
| 7332550 | Stabilization of transition metal complexes for catalysis in diverse environments This present invention is directed towards the identification or design, preparation, and use of suitable transition metal complexes for use as catalysts. The transition metal complexes may comprise heterodonor ligands. The present invention is also directed toward ... | 02/19/2008 |
| 7323517 | Composition and process for enhancing controlled free radical polymerization The present invention relates to a composition and process for enhancing the controlled radical polymerization in the presence of nitroxyls and nitroxylethers by adding a chain transfer agent selected from the group consisting of mercaptanes, thioethers and disulfid... | 01/29/2008 |
| 7323529 | Method of making copolymers containing olefinic type monomers Copolymers containing residues of at least one olefinic monomer and a method of making such copolymers including the steps of: (a) providing a pressurized stirred tank; (b) feeding monomer compositions to one or more stirred tank reactors, ... | 01/29/2008 |
| 7316816 | Temperature and pH sensitive copolymers The invention is directed to a copolymer comprising at least three types of monomeric units, said three types of monomeric units comprising: a temperature-sensitive unit, a hydrophilic unit, and a ... | 01/08/2008 |
| 7300991 | Cationic conductor, its intermediate, and lithium secondary battery using the conductor The disclosure discloses a polymer represented by the general formula, wherein Rp is a residue of a polymer of a compound having a polymerizable unsaturated bond, Q is an organic residue of n+1 valence... | 11/27/2007 |
| 7300990 | Zwitterionic polymers Polymers may be made from zwitterionic monomers having controlled architectures and molecular weights, using living polymerisations such as group or atom transfer radical polymerisation. For instance polymers may be formed by atom transfer radical polymerisation usi... | 11/27/2007 |
| 7300914 | Process for the preparation of stable polymer concentrates Process for preparing stable polymer concentrates, wherein acryloyldimethyltaurine and/or acryloyldimethyltaurate are free-radically polymerized with at least one further component in the presence of a polymerization medium, a higher-boiling solvent or solvent mixtu... | 11/27/2007 |
| 7279505 | Radiation-curable prepolymers The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or... | 10/09/2007 |
| 7279154 | Use of comb copolymers based on acryloyldimethyltaurine acid in cosmetic, pharmaceutical and dermatological products The invention relates to uses of comb polymers of acryloyldimethyltaurine and/or acryloyldimethyltaurates in cosmetic, pharmaceutical and dermatological applications as thickeners, dispersing agents, suspending agents, emulsifiers, stabilizers, solubilizers, conditi... | 10/09/2007 |
| 7276552 | Compositions and methods for inhibiting protein on surfaces The use of NIPAM polymers to prevent or reduce the formation of protein deposits on the surfaces of medical devices is described. The invention is particularly directed to reduction of the adsorption of proteins on surfaces of contact lenses and other medical prosth... | 10/02/2007 |
| 7276544 | Process for manufacturing intraocular lenses with blue light absorption characteristics A process for producing intraocular lenses (IOLs) capable of absorbing blue light and ultraviolet light using photo curing. Intraocular lenses so produced block blue light and ultraviolet light from reaching the retina of an eye implanted with the IOL. By blocking b... | 10/02/2007 |
| 7262253 | Process for the preparation of amphiphilic poly (N-vinyl-2-pyrrolidone) block copolymers The instant invention provides a two-step polymerization process for preparing amphiphilic poly(N-vinyl-2-pyrrolidone), (PVP)-block-polyester copolymers and other diblock and triblock copolymers consisting of PVP as one block. The block copolymers of the invention c... | 08/28/2007 |
| 7259217 | Controlled-architecture polymers and use thereof as separation media Controlled architecture polymers made preferably with acrylamide type monomers are prepared in living-type or semi-living-type free radical polymerizations, with the architecture preferably being other than linear, such as star, branched, grafted or hyper-branched. ... | 08/21/2007 |
| 7259218 | Processes for making temporary wet strength additives Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strengt... | 08/21/2007 |
| 7256246 | Low polydispersity poly-hema compositions The present invention relates to compositions comprising poly-HEMA having a peak molecular weight between about 25,000 and about 100,000 , preferably between 25,000 and 80,000 and a polydispersity of less than about 2 to less than about 3.8 respectively and covalen... | 08/14/2007 |
| 7250466 | Rapid curing anaerobic compositions A curable composition having enhanced cure speed which includes a curable component, a cure system and an additive for enhancing cure speed. The additive includes an alkali metal halide salt and the reaction product of: (a) a polyfunctional isocyanate and a member s... | 07/31/2007 |
| 7250480 | Acrylic composition and a curable coating composition including the same An acrylic composition includes the reaction product of an acrylic polymer, a carbamate having anhydride-reactive functionality and carbamate functionality, and a carboxylic acid anhydride that is reactive with the carbamate to form a carboxylic acid carbamate. The ... | 07/31/2007 |
| 7238761 | Multifunctional biocompatible hydrophilic gel and the method of gel manufacture Multifunctional biocompatible hydrophilic gel contains, in % (w/w), acrylamide—1.95-8.0, methacrylamide—0.54-3.0, 2-hydroxyethyl methacrylate—0.003-0.4, N,N′-methylene-bis-acrylamide—0.006-0.6 and water—q.s. to 100. The hydrophilic gel is produced by co-... | 07/03/2007 |
| 7230063 | Functional trithiocarbonate RAFT agents The present invention is directed to a free radical control agent of the structural formula: wherein R1 is a divalent alkyl group of 1 to 12 carbon atoms, R2 and R3 are each indep... | 06/12/2007 |
| 7226887 | Method for preparing metal cyanide catalysts using polymerizable complexing agents Complexes of a metal cyanide polymerization catalyst and certain monomer complexing agents provide a method whereby heterogeneous, active metal cyanide catalysts can be prepared. The catalysts are useful alkylene oxide polymerization catalysts that are easily separa... | 06/05/2007 |
