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| Number | Title | Issue Date |
| 8003728 | Swellable hydrogel-forming polymers having high permeability Swellable hydrogel-forming polymers having high permeability Swellable hydrogel-forming polymer comprising at least one hydrophilic polymer of dendritic structure and at least one water-insoluble phosphate, a process for preparing the swellable hydrogel-forming poly... | 08/23/2011 |
| 7998431 | Environmentally sensitive nanostructured surfaces An apparatus comprising a substrate having a surface with a volume-tunable-material on the surface and fluid-support-structures over the surface and partially embedded in the volume-tunable-material. Each of said fluid-support-structures has at least one dimension o... | 08/16/2011 |
| 7407672 | Composition derived from biological materials and method of use and preparation The invention provides a novel composition and methods of its preparation and uses. The composition comprises as main components serum and a gelling agent and is useful in various medical applications. The composition may be used to coat a medical device, as a biolo... | 08/05/2008 |
| 7294348 | Polyfunctional biocompatible hydrogel and method for the production thereof The inventive polyfunctional biocompatible hydrogel comprises 1.3–15 mass % of acrylamide, 0.004–0.975 mass % of cross-linking agents—N,N′-methylen-bis-acrylamide, 0.004–5.1 mass % of N,N′-ethylen-bis-acrylamide, 0.002–0.45 mass % of poviargol and wate... | 11/13/2007 |
| 7235592 | PVA hydrogel The present invention provides methods of making covalently crosslinked vinyl polymer hydrogels having advantageous physical properties, and covalently crosslinked vinyl polymer hydrogel compositions made by such methods, as well as articles of manufacture comprisin... | 06/26/2007 |
| 7199185 | Use of reactive polymeric surfactants in the formation of emulsions Reactive polymeric surfactants are disclosed, and their use in processes for preparation of microcapsules, and in stabilising emulsions. The surfactants are random graft polymers or block copolymers which contain both hydrophobic and hydrophilic units and in which t... | 04/03/2007 |
| 7196139 | Water-absorbent resin composition A water-absorbent resin composition excelling in an absorption capacity under pressure, a first transition of initial absorption, and the small amount of rewet is provided. It comprises a water-absorbent resin obtained by aqueous solution polymerization and by rever... | 03/27/2007 |
| 7193007 | Environment responsive gelling copolymer The invention relates to a gelable copolymer composition comprising a copolymer in a solvent. The copolymer has the structure A(B)n, wherein the core (A) is soluble in the solvent, the arms (B) are convertible between soluble and insoluble in the solent depending on... | 03/20/2007 |
| 7144957 | Polymer mixture of hydrogels with different pH value The present invention relates to polymer mixtures comprising hydrogel forming polymers capable of absorbing aqueous fluids, having different pH values and each being preparable by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof, th... | 12/05/2006 |
| 7132479 | Polymer mixtures with improved odor control The present invention relates to polymer mixtures including hydrogel-forming polymers capable of absorbing aqueous fluids and prepared by polymerization of olefinically unsaturated carboxylic acids or derivatives thereof together with copolymers of C2–C... | 11/07/2006 |
| 7105588 | Screen printable hydrogel for medical applications The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with t... | 09/12/2006 |
| 7045559 | Electrically conductive adhesive hydrogels with solubilizer A composition providing electrically conductive adhesive hydrogels suitable for use as skin contact adhesives and, particularly, suitable for use as an electrical interface for disposable medical devices. The present hydrogels provide for reduced skin irritation and... | 05/16/2006 |
| 7012105 | Structure having balanced pH profile Disclosed is an absorbent structure comprising an acidic or basic water-swellable, water-insoluble polymer, a basic or acidic second material, and, optionally, a buffering agent, wherein the absorbent structure exhibits desirable absorbent properties. Specifically, ... | 03/14/2006 |
| 6943206 | Organic/inorganic hybrid hydrogel and manufacturing method therefor The present invention provides a novel organic/inorganic hybrid hydrogel which is superior in homogeneity, transparency, mechanical properties, and in swelling and shrinking properties, a manufacturing method therefor, and a dry body of the organic/inorganic hybrid ... | 09/13/2005 |
| 6932964 | Cosmetic composition with water-soluble or water-dispersible polymers A cosmetic composition comprising at least one water-soluble or water-dispersible polymer which comprises, in copolymerized form, a) at least one α,β-ethylenically unsaturated monomer of the formula I | 08/23/2005 |
| 6923986 | Multiblock biodegradable hydrogels for drug delivery and tissue treatment Gel-forming macromers including at least four polymeric blocks, at least two of which are hydrophobic and at least one of which is hydrophilic, and including a crosslinkable group are provided. The macromers can be covalently crosslinked to form a gel on a tissue su... | 08/02/2005 |
| 6867269 | Water-absorbent resin and production process therefor The present invention provides such a production process that a low-cost water-absorbent resin having excellent quality can be obtained by reasonable steps in aqueous solution polymerization. The production process for a water-absorbent resin comprises a polymerizat... | 03/15/2005 |
| 6846881 | Preparation of defect-free polyacrylamide electrophoresis gels in plastic cassettes Irregularities in the pore structures of polyacrylamide gels that are formed in cassettes against plastic walls are reduced or eliminated by the inclusion of an oxygen scavenger in the gel-forming solution. Avoidance of the irregularities results in electropherogram... | 01/25/2005 |
| 6835773 | Use of N-methylurea for electrophoresis of small proteins A medium for use in electrophoresis comprising N-methylurea and a polyacrylamide gel. In particular, the medium is used in a system and method of electrophoretic separation comprising the introduction of a sample to the medium, and applying an electric field across ... | 12/28/2004 |
| 6790840 | Reversibly cross-linked hydrogels A hydrogel composition and methods of preparing and using the same are disclosed. The hydrogel composition comprises an oxidized polysaccharide, and a cross-linker having at least two functional cross-linking groups. The cross-linker reversibly cross-links the polys... | 09/14/2004 |
| 6783721 | Method of making an ion treated hydrogel A high strength hydrogel having a constant swelling pressure upon implantation and thereafter is formed by preparing a hydrogel solution and then injecting the solution into a mold and cause to gel. The molded gel is then washed in a saline solution from about one d... | 08/31/2004 |
| 6723781 | Hydrogels containing substances A blend of one or more crosslinked polymers or copolymers prepared from an olefinically unsaturated polymerizable carboxylic or anhydride monomer and at least one high molecular weight essentially linear polymer prepared from an olefinically unsaturated polymerizabl... | 04/20/2004 |
| 6720389 | Water-absorbent resin and production process therefor In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a metho... | 04/13/2004 |
| 6716885 | Storage-stable aerated gel composition and a process for producing it A storage-stable aerated gel composition comprising 30 to 97% by weight of water, 0.2 to 5% by weight of a gelling agent selected from xanthan gum, sodium alginate and neutralized carboxyvinyl polymer and 2 to 5% by weight of a fine particulate hydrophobic silicone-... | 04/06/2004 |
| 6710104 | Organic/inorganic hybrid hydrogel and manufacturing method therefor The present invention provides a novel organic/inorganic hybrid hydrogel which is superior in homogeneity, transparency, mechanical properties, and in swelling and shrinking properties, a manufacturing method therefore, and a dry body of the organic/inorganic hybrid... | 03/23/2004 |
| 6617372 | Process of making polymeric hydrogel products What is described is a polymeric hydrogel product of a stable, aqueous polymeric composition which composition forms a clear to translucent film upon application to a substrate, and includes, by weight, 5-75% of (a) a water-soluble polymer having (b) in s... | 09/09/2003 |
| 6602950 | Hydrophilic hydrogels with a high swelling capacity and method for producing and using them A hydrophilic, highly swellable hydrogel based on (co)polymerized monomers or based on graft (co)polymers and prepared by a) free-radically (co)polymerizing one-or more hydrophilic monomers or graft (co)polymerizing one or more hydrophilic monomers onto a graf... | 08/05/2003 |
| 6573320 | Acrylic resin composition, painted-film molded resin plate using the same, and coating member for solar cell panel An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hyd... | 06/03/2003 |
| 6565768 | Method for producing water-swellable hydorphilic polymers, said polymers and use thereof Water-swellable hydrophilic polymers are prepared by neutralization of the acidic hydrogel having a degree of neutralization of 0-40 mol % to an ultimate degree of neutralization of 60-85 mol % by mixing with a neutralizing agent in a mincer comprising a ... | 05/20/2003 |
| 6559223 | Hydrogels and methods for their production Forming graft copolymers in water using labeling of water soluble polymers with photoinitiators. Water soluble polymers can form environmentally responsive hydrophobically stimulated cages. The cages, which contain initiating radicals after irradiation, m... | 05/06/2003 |
| 6552103 | Biomimetic hydrogel materials Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the gro... | 04/22/2003 |
| 6503979 | Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones The invention contains a process for the surface postcrosslinking of water-absorbing polymers in which the polymers are treated with a surface postcrosslinking solution and during or after the treatment are postcrosslinked by means of an increase in tempe... | 01/07/2003 |
| 6472478 | Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones The invention relates to a process for the gel or surface postcrosslinking of water-absorbing polymers in which the polymers are treated with a surface postcrosslinking solution and during or after the treatment are postcrosslinked and dried by means of a... | 10/29/2002 |
| 6458877 | Compositions comprising a thermoplastic component and superabsorbent polymer The present invention relates to a composition comprising a thermoplastic component and at least one superabsorbent polymer, methods of use for such composition, and articles comprising such composition. The composition may be formed into a film layer or ... | 10/01/2002 |
| 6417247 | Polymer/ceramic composites The present invention provides a composition which comprises a polymer or polymer solution that forms a gel under controlled parameters and a ceramic matrix, the composition being fluid under non-physiological conditions and non fluid under physiological ... | 07/09/2002 |
| 6414049 | Stable initiator system Acylphosphine initiators used in making ophthalmic lenses are stabilized by the addition of an acid to the monomer mix used to make the lenses.... | 07/02/2002 |
| 6407161 | Polymerization processes and products and uses of the products Dry particulate polymeric products, generally spray dried granules, are made by reverse phase polymerization in a partially water miscible continuous phase in the presence of an ionizable stabilizer which is water soluble when ionized and water insoluble ... | 06/18/2002 |
| 6387978 | Medical devices comprising ionically and non-ionically crosslinked polymer hydrogels having improved mechanical properties Shaped-medical devices, e.g. stents, having improved mechanical properties and structural integrity are disclosed. The devices comprise shaped polymeric hydrogels which are both ionically and non-ionically crosslinked and which exhibit improved structural... | 05/14/2002 |
| 6375970 | Methods and materials for preterm birth prevention Materials and methods for reducing the incidence of preterm birth involving the use of polymeric compositions are provided.... | 04/23/2002 |
| 6350812 | Hydrogels containing triblock copolymers, and preparation and use thereof A soft hydrogel containing a triblock copolymer and water is disclosed. The copolymer has formula (I): X-G-Y, wherein G is a non-hydroxylated hydrophilic linear polymer block containing p repetitive units, where p is a number from 10 to 150, each of X and... | 02/26/2002 |
