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| Number | Title | Issue Date |
| 7414093 | Modified block copolymer A second order modified block copolymer which can be obtained by reacting a first order modified block copolymer with a second order modifier, wherein the first order modified block copolymer comprises a base block copolymer and a functional group-containing first o... | 08/19/2008 |
| 7371713 | Preparation of monomers for grafting to polyolefins, and lubricating oil compositions containing grafted copolymer A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such ... | 05/13/2008 |
| 7342065 | Preparation of nanocomposite of elastomer and exfoliated clay platelets, rubber compositions comprised of said nanocomposite and articles of manufacture, including tires This invention relates to preparation of nanocomposites comprised of elastomer and a dispersion of an at least partially exfoliated water swellable clay and to rubber compositions containing such nanocomposite and articles of manufacture which contain at least one c... | 03/11/2008 |
| 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 |
| 7276571 | Process for making phenylene dioxydiacetic acid and use thereof A process for making phenylene dioxydiacetic acid comprises (a) contacting a dihydroxybenzene under reaction conditions with a salt of haloacetic acid in a solution without adding a haloacetic acid to produce a salt of phenylene dioxydiacetic acid; and (b) optionall... | 10/02/2007 |
| 7268189 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated ... | 09/11/2007 |
| 7256238 | Modified block copolymer A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-o... | 08/14/2007 |
| 7238750 | Polymers The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsatu... | 07/03/2007 |
| 7226978 | Techniques to improve polyurethane membranes for implantable glucose sensors The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the matrix, wherein the second polymer forms a network of microdomains wh... | 06/05/2007 |
| 7217769 | Medical device with plasma cross-linked hydrophilic coating A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethyl... | 05/15/2007 |
| 7196141 | Polymer and epoxy resin compositions The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living-radical polymerization and has a reactive ... | 03/27/2007 |
| 7144951 | Multifunctional viscosity index improver and dispersant A process is disclosed that comprises solution grafting a hydrocarbon polymer prepared from at least C2 to C28 polymerizable hydrocarbon, said polymer having a number average molecular weight in the range of from about 5,000 to about 500,000, w... | 12/05/2006 |
| 7091283 | Crosslinkable prepolymers from a hydrophilic monomer and a hydrophobic crosslinker The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double ... | 08/15/2006 |
| 7087222 | Method for enhancing integrity of epithelium using retinoic acid A method for improving the integrity of the corneal epithelium by introducing into the eye an effective amount of a ophthalmically compatible retinoid sufficient to enhance the integrity of the corneal epithelium. ... | 08/08/2006 |
| 7067586 | Methods of making ABA-type block copolymers having a random block of hydrophobic and hydrophilic monomers Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and h... | 06/27/2006 |
| 7008635 | Hydrogels for orthopedic repair Hydrogels intended for orthopedic applications, including repair and regeneration of cartilage, bone, joint surfaces and related tissues, must possess greater strength and toughness than hydrogels used in soft tissue repair. A hydrogel formulation is provided which ... | 03/07/2006 |
| 6989425 | Process for cross-linking a polymer Process for cross-linking a polymer or a resin with the help of a peroxide, in the presence of a co-agent, the co-agent used being a compound according to formula 1, in which n is higher than or equal to 2, R1 is an aliphatic or aromatic group and the R | 01/24/2006 |
| 6969511 | Synthetic bulk laxative A synthetic bulk laxative which comprises a crosslinked graft polymer. It is formed of a hydrophilic monomer partially neutralized up to 75%, a polysaccharide gum up to 3% by weight and a crosslinker up to 2% by weight. The weight percentages are with respect to the... | 11/29/2005 |
| 6958169 | Surface treatment of medical device A method for improving the wettability of a medical device involves: (a) providing a medical device formed from a monomer mixture comprising a hydrophilic device-forming monomer including a copolymerizable group and an electron donating moiety, and a second device-f... | 10/25/2005 |
| 6930133 | Low density polymer beads Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen. ... | 08/16/2005 |
| 6875817 | Functionalized polymeric media for separation of analytes Separation of a variety of analytes that are polar, nonpolar and ionic using functionalized polymeric media is disclosed. Preformed rigid particles of highly crosslinked homopolymer of polyvinylidene compounds are functionalize using the residual vinyl groups onto w... | 04/05/2005 |
| 6855780 | Polymer, process for producing the polymer, and curable composition containing the polymer This invention provides a production method of a vinyl polymer having a functional group at a molecular chain terminus which comprises adding a compound (I) having a functional group and an internal alkenyl group or conjugated polyene compound (II) in the living rad... | 02/15/2005 |
| 6852802 | Organic polymer material, process for producing the same, and heavy-metal ion remover comprising the same An object of the present invention is to provide a heavy metal ion scavenger having more excellent scavenging performance than previously. In order to attain this object, organic polymer materials of the present invention are characterized in that they have a polyme... | 02/08/2005 |
| 6803423 | (Meth)acryloyl group-modified ethylene-alpha-olefin copolymer, production method thereof and rubber composition An (meth)acryloyl group-modified ethylene-α-olefin copolymer (A) which has (meth)acryloyl group as a the side-chain thereof, wherein the intrinsic viscosity [η] was 0.01 to 10 dl/g measured in decalin at a temperature of 135° C.; and a rubber composition which co... | 10/12/2004 |
| 6767968 | ABA-type block copolymers having a random block of hydrophobic and hydrophilic monomers and methods of making same Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and h... | 07/27/2004 |
| 6765069 | Plasma cross-linked hydrophilic coating A method for making a hydrophilic and lubricious coating, the coating so made and a medical device including such coating, wherein the coating includes a hydrophilic polymeric unit layer cross-linked with a plasma deposited double bond monomer. The hydrophilic polym... | 07/20/2004 |
| 6750298 | Surfactant copolymers based on methylidene malonate The invention generally concerns a novel family of biocompatible surfactant copolymers having a wide range of uses, in particular in pharmaceutics and for synthesizing substances in dispersed state and for surface treatment of materials or biomaterials. Said copolym... | 06/15/2004 |
| 6703432 | Moisture adsorbing and desorbing material An object of the present invention is to provide a water adsorbing/desorbing organic polymer material having excellent water adsorbing/desorbing performance and which is inexpensive and readily disposable by incineration or the like. In order to attain th... | 03/09/2004 |
| 6686321 | Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin prefera... | 02/03/2004 |
| 6610776 | Aqueous high gloss emulsion paint with long open time The use of an aqueous emulsion paint having a pigment content of from 40 to 200 parts by weight per 100 parts by weight of polymer to coat buildings or building parts, wherein said polymer comprises an emulsion copolymer containing from 0.5 to 30% by ... | 08/26/2003 |
| 6552131 | Block polymer and antistatic agent comprising the same The present invention provides a block polymer comprising a polyolefin and a hydrophilic polymer, being finely dispersed in resins, in particular polyolefins, without requiring any compatibilizer, and giving thermoplastic resin compositions, said composit... | 04/22/2003 |
| 6506837 | Gelled aqueous composition comprising a block copolymer containing at least one water-soluble block and one hydrophobic block The invention relates to a gelling aqueous composition comprising block copolymers containing at least one water-soluble block and at least one block predominantly hydrophobic in nature, and forming a viscoelastic gel.... | 01/14/2003 |
| 6497868 | Graft polymer and moulded medical articles employing this The present invention relates to graft polymer which is characterized in that it is formed by graft polymerization of structural units containing. a quaternary ammonium group represented by general formula (A), ##STR1## (R2 and R3 ea... | 12/24/2002 |
| 6495618 | Graft copolymer with an amide functional group as a pigment dispersant A polymer dispersant for pigments based on a graft copolymer wherein the graft copolymer has a weight average molecular weight of at least 3000 and has 10 to 90% by weight of a polymeric backbone and 90 to 10% by weight of macromonomer side chains attache... | 12/17/2002 |
| 6482900 | Polymer, process for producing the polymer, and curable composition containing the polymer A vinyl polymer having, at a molecular chain terminus, a structure represented by the general formula 1: ##STR1## (wherein R3 is a hydroxy, amino, epoxy, carboxylic acid, ester, ether, amide or silyl group, an alkenyl group having low polymeriz... | 11/19/2002 |
| 6472353 | Dispersant-viscosity improvers for lubricating oil compositions Graft copolymers useful as a dispersant-viscosity improver for lubricating oil compositions comprise a hydrocarbon polymer having graft polymerized thereon at least two nitrogen containing units, at least one of the nitrogen containing units being derived... | 10/29/2002 |
| 6423801 | Branched polyammonium compounds of high molecular weight and processes for producing said compounds The invention is concerned with water soluble high-molecular weight quaternary ammonium graft polymer, wherein ammonium salt side chains are grafted onto a polyamine backbone under free radical conditions, and wherein the initiator system comprises a free... | 07/23/2002 |
| 6414102 | Linear copolymers of alpha-olefins and divinylbenzene having narrow molecular weight and composition distributions, graft copolymers derived therefrom, and process for preparing same The invention relates to polyolefin copolymers (I) ##STR1## and to graft copolymers (II) ##STR2## which are prepared from the copolymers (I), wherein the copolymers (I) are linear copolymers containing divinylbenzene comonomer units selected from the... | 07/02/2002 |
| 6413306 | Pigment dispersions containing ABC-block polymer dispersant A pigment dispersion useful for forming coating compositions containing dispersed pigment, a non-aqueous carrier liquid and an ABC-block polymer dispersant (binder); wherein the ABC block polymer has a number average molecular weight of about 5,000-20,000... | 07/02/2002 |
| 6403724 | Polymer gel including dendrimers A high damping polymer gel composition suitable for at least vibration damping application, including a copolymer with at least alkenyl monomer units and maleimide monomer units, a maleated polyalkylene, a crosslinking agent, and a dendrimer is provided. ... | 06/11/2002 |
