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| Number | Title | Issue Date |
| 7399799 | Flame-retardant polyester polymer dyeable with cationic dye, method of producing the same, and copolyester fiber using the same Disclosed is a flame-retardant polyester polymer dyeable with a cationic dye, a method of producing the same, a copolyester fiber using the same, and fiber products using the copolyester fiber. In the method, after a dimethyl isophthalate component containing metal ... | 07/15/2008 |
| 7342050 | Method for preparing a lactic acid ester composition and use thereof as solvent The invention concerns a method for preparing a lactic acid ester composition based on a lactic acid composition involving a step of transforming the composition into a lactic acid oligomeric composition having a mean degree of polymerisation (DPM) ranging between 2... | 03/11/2008 |
| 7304121 | Liquid-crystalline polyester resin and method for producing it The present invention provides a liquid-crystalline polyester obtainable by a method comprising the steps of: (1) preparing a prepolymer consisting of the repeating units represented by formulae (I), (II), (III) and (IV): ... | 12/04/2007 |
| 7235192 | Capped poly(arylene ether) composition and method A method of preparing a capped poly(arylene ether) resin includes reacting a capping agent with a blend of two or more poly(arylene ether) resins having different intrinsic viscosities. Cured compositions prepared from these capped poly(arylene ether) resins exhibit... | 06/26/2007 |
| 7173102 | Facially amphiphilic polymers as anti-infective agents Facially amphiphilic polymers and articles made therefrom having biocidal surfaces are disclosed. The polymers can inhibit the growth of microorganisms in contact with the surface or in areas adjacent to said biocidal surface. There is also disclosed a method to ide... | 02/06/2007 |
| 7166690 | Recycled method for a wasted polyester and reclaimed materials thereof The present invention relates to a method for the recycling waste polyester resins and the reclaimed materials therefrom. The method for recycling waste polyester resins according to one embodiment the present invention comprises (a) depolymerizing waste polyester r... | 01/23/2007 |
| 7148296 | Capped poly(arylene ether) composition and process A thermoset composition exhibiting reduced water absorption in the cured state includes an olefinically unsaturated monomer and a capped poly(arylene ether) prepared by the reaction of an uncapped poly(arylene ether) with an anhydride capping agent. The capped poly(... | 12/12/2006 |
| 7147800 | Selective ether cleavage synthesis of liquid crystals A method for making platform molecules comprising: reacting 4-alkoxy benzoyl chloride with R2-hydroquinone under first conditions effective to produce bis 1,4[4-alkoxy-benzoyloxy]-R2-phenylene comprising bis terminal alkoxy groups wherein R | 12/12/2006 |
| 7138457 | Polyester compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a suitable stabilizer selected from the group consisting of polyhydric alcohol-containing polymers and copolymers derived from 2-propenoic acid ester monomers, when extrusion compounded exhibits... | 11/21/2006 |
| 7101597 | Medical devices made from polymer blends containing low melting temperature liquid crystal polymers A medical device, at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of the thermoplastic polymers being a thermoplastic liquid crystal polymer... | 09/05/2006 |
| 7026026 | Balloons made from liquid crystal polymer blends Balloons for use on medical devices such as catheter balloons are formed from polymer blend products which include a liquid crystal polymer (LCP), a crystallizable thermoplastic polymer, especially thermoplastic polyesters such as PET, and a compatabilizer. The comp... | 04/11/2006 |
| 7022390 | Polyester and polyamide compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, whe... | 04/04/2006 |
| 6977103 | Dimensionally stable balloons An inflatable medical balloon comprises a polymer matrix material and a plurality of fibers distributed in the matrix material. The plurality of fibers operatively adhere to the matrix material and provide reinforcement thereof. The fibers may be parallel or angular... | 12/20/2005 |
| 6974857 | End-capped quinoxaline-containing hyperbranched aromatic poly(ether-ketones) An end-capped quinoxaline-containing hyperbranched ether-ketone polymer having repeating units of the formula: wherein n represents the degree of polymerization for the parent hyperbranched polymer, x represents the deg... | 12/13/2005 |
| 6962965 | Functionalized poly(arylene ether) composition and process A functionalized poly(arylene ether) having a pendant carbon—carbon double bond is prepared by reacting the hydroxy end group of a poly(arylene ether) with a polyisocyanate compound to produce a urethane-capped poly(arylene ether) having pendant isocyanate functio... | 11/08/2005 |
| 6916881 | Polyester compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, and a second polymer which is polyacrylamide, polymethacrylamide or copolymer of acrylamide or methacrylamide when extrusion compounded exhibits a lower residual acetaldehyde content than does PET a... | 07/12/2005 |
| 6913708 | Cholesteric liquid crystal drying process and solvent The invention provides methods of forming a cholesteric liquid crystal layer that include forming a cholesteric liquid crystal composition, depositing the cholesteric liquid crystal composition onto a substrate, and initially drying the cholesteric liquid crystal co... | 07/05/2005 |
| 6908650 | Polyester and polyamide compositions of low residual aldehyde content A mixture of a polyester, such as poly(ethylene terephthalate) PET, or a polyamide, and a suitable stabilizer selected from the group consisting of hydroxylamine stabilizers, substituted hydroxylamine stabilizers, nitrone stabilizers and amine oxide stabilizers, whe... | 06/21/2005 |
| 6897282 | Compositions comprising functionalized polyphenylene ether resins The invention relates to a method of forming a polyphenylene ether resin containing residual aliphatic unsaturation. A polyphenylene ether is reacted with a capping agent in a solvent to form the polyphenylene ether resin containing residual aliphatic unsaturation, ... | 05/24/2005 |
| 6849707 | Quinoxaline-containing hyperbranched aromatic poly(ether-ketones) A quinoxaline-containing hyperbranched ether-ketone polymer having repeating units of the formula: and a method for preparing the polymer are provided. ... | 02/01/2005 |
| 6835804 | Preparation of polymer, and resist composition using the polymer A polymer comprising recurring units of formula (2) is prepared by effecting deblocking reaction on a polymer comprising recurring units of formula (1) in the presence of an acid catalyst. In the formulae, R1 | 12/28/2004 |
| 6833460 | Preparation and use of gamma-butyrolactones as cross-linking agents The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy amide. The ... | 12/21/2004 |
| 6800220 | OPTICALLY ACTIVE POLYESTER, PHOTOREACTIVE CHIRAL AGENT, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL COLOR FILTER, OPTICAL FILM, RECORDING MEDIUM, METHOD OF CHANGING THE HELICAL STRUCTURE OF A LIQUID CRYSTAL, AND METHOD OF FIXING THE HELICAL STRUCTURE OF A LIQUID CRYSTAL The present invention discloses an optically active polyester comprising at least constituent units represented by the general formula (I) and the general formula (II): wherein Ar1 and Ar2 each inde... | 10/05/2004 |
| 6780959 | Compositions comprising functionalized polyphenylene ether resins The invention relates to a polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing residual aliphatic unsaturation. Also included are reaction products betwee... | 08/24/2004 |
| 6743889 | Hyperbranched ether-ketone co-polymers Novel ether-ketone hyperbranched co-polymers are prepared by co-polymerizing 3,5-bis(4-fluorobenzoyl)phenol and 4-fluoro-4′-hydroxybenzophenone. The resulting copolymer has repeating units of the formula: wherein n has... | 06/01/2004 |
| 6699830 | Crosslinked copolymer of unsaturated carboxylic acid and process for producing the same, copolymer of unsaturated carboxylic acid, biodegradeable builder, and detergent composition The invention relates to a crosslinked, carboxylic acid-based copolymer having good water absorbability and biodegradability, and a method for producing it; to an unsaturated carboxylic acid polymer having good detergency and its use; and to a biodegradab... | 03/02/2004 |
| 6642349 | Batch type apparatus for production of liquid crystalline polymer, and method for continuous production of liquid crystalline polymer using the apparatus A batch type apparatus for producing a liquid crystalline polymer includes a reactor, a first gas-pressurizing unit, a die-head, a shut-off valve, and a die-plate. The reactor produces a liquid crystalline polymer capable of forming an anisotropic melt ph... | 11/04/2003 |
| 6627708 | Compositions comprising functionalized polyphenylene ether resins The invention relates to a polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing residual aliphatic unsaturation. Also included are reaction prod... | 09/30/2003 |
| 6518390 | Precursor of a heat resistant resin, heat resistant resin, insulating film and semiconductor device A precursor of a polybenzoxazole resin which comprises a crosslinking group in a molecule and has a specific structure, a polybenzoxazole resin obtained from the precursor by the condensation reaction and the crosslinking reaction, an insulating film comp... | 02/11/2003 |
| 6491990 | Monoreactive mesogenic compounds The invention relates to monoreactive mesogenic compounds of formula I ##STR1## wherein P, Sp, X, n, Y1, Y2, r1, r2, r3, Z1 and Z2 are defined herein.... | 12/10/2002 |
| 6469124 | Functionalized polyphenylene ether resins and curable compositions comprising them The invention relates to a polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing residual aliphatic unsaturation. Also included are reaction prod... | 10/22/2002 |
| 6423850 | Preparation and use of gamma-butyrolactones as cross-linking agents The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy ... | 07/23/2002 |
| 6384176 | Composition and process for the manufacture of functionalized polyphenylene ether resins The invention relates to a novel process for the manufacture of polyphenylene ether resin containing residual aliphatic unsaturation. The invention also relates to the polyphenylene ether resin containing residual aliphatic unsaturation as well as composi... | 05/07/2002 |
| 6291122 | Polyesters A branched polyester resin of the Formula ##STR1## wherein n and m represent randomly repeating segments, and the number of n and m segments in the polymer backbone are each of from about 10 to about 10,000; X is an alkylene group, an olefinic group, or a... | 09/18/2001 |
| 6180747 | Polyesters A branched polyester resin of the Formula ##STR1## wherein n and m represent randomly repeating segments, and the number of n and m segments in the polymer backbone are each of from about 10 to about 10,000; X is an alkylene group, an olefinic group, or a... | 01/30/2001 |
| 6165382 | Process for obtaining cholesteric liquid crystals by stereoselective recrystallization Process for synthesizing polymers+PTOBEE (C26H20O8)n and PTOBDME (C34H36O8)n, with the addition of acid dichloride and DL treo-1,2-butanediol in Cl-naphthalene and DL-1,2-dodecanediol with diphenyl oxide, respectively, by passing them through a nitrogen s... | 12/26/2000 |
| 5989758 | Liquid crystalline polyesters, their composition, and their uses There are provided liquid crystalline polyesters comprising 4'-hydroxy-4-stilbenecarboxylic acid type units, dicarboxylic acid units acting as a mesogen such as 4,4'-stilbenecarboxylic acid and catechol units as essential ingredients, and a liquid crystal... | 11/23/1999 |
| 5880252 | Pyrrolidonyl-containing polyesters and polyamides Pyrrolidonyl-containing polyesters and polyamides I to III ##STR1## where R, X, A and Z are defined herein, are suitable as film formers and conditioners in hair-cosmetic formulations, for stabilizing hydrogen-peroxide in aqueous solution, for comple... | 03/09/1999 |
| 5859174 | Amide functional monomers and acrylic polymers with amide functionality Ethylenically unsaturated compounds are provided having Structure I and from which polymers with a plurality of groups of Structure II are derived. ##STR1## In Structures I and II, R1 is hydrogen or methyl, and R3 is hydrog... | 01/12/1999 |
| 5854375 | Melt polymerization process for preparing aromatic polyesters A process for preparing a polyester which includes the step of heating a reaction mixture comprising (i) diesters of dihydric phenols and C1-10 aliphatic monoacids, (ii) aromatic dicarboxylic acids, and (iii) a catalytic amount of an organic ca... | 12/29/1998 |
