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| Number | Title | Issue Date |
| 7687594 | Random amorphous copolymer and manufacturing method thereof A random amorphous copolyester is synthesized by using diacid monomers and diol monomers. The random amorphous copolyester has a structure of the formula (I): wherein R1, R2 is an aromatic or aliphatic... | 03/30/2010 |
| 7393467 | Wholly aromatic liquid-crystalline polyester and method for preparing the same Provided is a liquid-crystalline polyester with good properties obtainable by subjecting a prepolymer consisting of the repeating units represented by formulae (I), (II), (III) and (IV): to heat treatment in a substantially... | 07/01/2008 |
| 7354887 | High temperature LCP for wear resistance A high temperature liquid crystalline polyester (LCP) composition, and articles made therefrom, that provides “good” to “excellent” wear resistance at PVs (pressure×velocity) of at least 1.75 MPa-m/s (50,000 psi-fpm). The high temperature LCP being a matrix... | 04/08/2008 |
| 7341675 | Liquid crystalline polymer composition Liquid crystalline polymers containing specified ratios of repeat units derived from hydroquinone, 2,6-naphthalenedicarboxylic acid, 4-hydroxybenzoic acid and optionally terephthalic acid have exceptionally high heat distortion temperatures, making especially useful... | 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 |
| 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 |
| 7271235 | Branched aromatic polycarbonate and its production method It is to provide a branched aromatic polycarbonate excellent in hue and excellent in melt properties such as melt strength. A branched aromatic polycarbonate obtained by transesterification and having a viscosity average molecular weight of at least 16,000, w... | 09/18/2007 |
| 7253251 | Water soluble thermosetting polyester resin composition and method of preparing the same A water soluble thermosetting polyester resin composition for undercoating a PCM steel sheet is prepared from about 100 parts by weight of thermosetting polyester resin obtained by condensing polyethylene terephthalate using glycol and polybasic acid, about 5-20 par... | 08/07/2007 |
| 7226648 | Flexible bottles of polyester resin Flexible, liquid fillable bottles of polyester resin are provided which have a capacity in liters relative to the weight thereof in grams excluding the neck of from 0.15 to 0.5 and from 0.2 to 1.5 for larger capacities. The bottles are obtained by blowing parisons f... | 06/05/2007 |
| 7214432 | Coating compositions, their preparation, and coated articles made therefrom A coating composition comprising components A, B and optionally C, wherein component A comprises at least one hydroxy-terminated polyarylate. Component B is an organic species which can react with the hydroxy terminal groups of component A, and component C is a cata... | 05/08/2007 |
| 7211634 | Process for the preparation of polyesters containing 1,4-cyclohexanedimethanol Disclosed is a process for the preparation of high molecular weight polyesters by reacting one or more dicarboxylic acids directly with 1,4-cyclohexanedimethanol and, optionally, one or more diols. The process uses an overall diol to dicarboxylic acid molar ratio of... | 05/01/2007 |
| 7208563 | Crystalline polyester A crystalline polyester prepared by polycondensing an alcohol component comprising 1,6-hexanediol in an amount of 60% by mol or more, with a carboxylic acid component comprising fumaric acid in an amount of 60% by mol or more, wherein the crystalline polyester has a... | 04/24/2007 |
| 7198830 | Polycarbonate resin composition and polarizing sheet used the same A polycarbonate resin composition obtained by blending a polycarbonate resin (A) obtained by forming a carbonate bond from 95 to 5 mol % of a dihydroxy compound having a fluorene structure represented by the general formula (1) and 5 to 95 mol % of a dihydroxy compo... | 04/03/2007 |
| 7179401 | Thermotropic liquid-crystalline polymer A thermotropic liquid crystalline polymer, which is obtainable by copolymerizing a trifunctional hydroxynaphthalene carboxylic acid represented by the general formula (I) and/or reactive derivative thereof with other polymerizing monomer(s) | 02/20/2007 |
| 7175779 | Thermotropic main-chain liquid crystalline polymers and method of increasing the melt processibility of polyester-based liquid crystalline polymers A thermotropic main-chain liquid crystalline homo- or copolymer forming a liquid crystalline phase and containing an aromatic monomer with functional groups in ortho- or meta-position. The polymer exhibits both isotropic and anisotropic properties. The present inven... | 02/13/2007 |
| 7169859 | Weatherable, thermostable polymers having improved flow composition A copolymer composition comprises an arylate polyester unit, an aromatic carbonate unit, and a soft-block moiety, wherein individual occurrences of the soft block moiety are linked by a spacer unit comprising one or more of the arylate polyester units, one or more o... | 01/30/2007 |
| 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 |
| 7160977 | Polymer blends with improved notched impact strength This invention relates to a blend of biodegradable polymers comprising: (A) about 70% to about 80% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0° C., (B) about 30% to about 20% by ... | 01/09/2007 |
| 7157525 | Thermoplastic elastomer resin The present invention relates to a thermoplastic elastomer resin which has good melt viscosity, melt tension, and thermal resistance, wherein it is prepared by introducing a chain extender and a stabilizer for hydrolysis to a thermoplastic elastomer resin produced t... | 01/02/2007 |
| 7153576 | Weatherable multilayer article assemblies and method for their preparation Disclosed is a multilayer article assembly comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a... | 12/26/2006 |
| 7132497 | Aromatic dihydroxy compound useful for the preparation of (CO)polycarbonates An aromatic dihydroxy compound conforming to formula 1 is disclosed. Also disclosed are (co)polycarbonates derived from the compound. The novel (co)polycarbonates are characterized by their reduced water uptake a... | 11/07/2006 |
| 7118799 | Thermoplastic article having a decorative material embedded therein This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material;... | 10/10/2006 |
| 7105106 | Liquid crystalline polymers, processes for their manufacture, and articles thereof Thermotropic liquid crystalline polymers are produced by the reaction of a polyester made from an aromatic dicarboxylic acid and a diol, one or more hydroxycarboxylic acids, a stoichiometric excess of an aromatic diol, and a carboxylic acid anhydride. Also disclosed... | 09/12/2006 |
| 7087704 | Method for manufacturing thermotropic liquid-crystalline polymer It is an object of the present invention to manufacture high quality thermotropic liquid-crystalline polymer generating no low boiling gas and inducing no discoloration resulted from thermal degradation at high yield. To manufacture a liquid-crystalline polymer havi... | 08/08/2006 |
| 7081509 | Method for producing highly functional, hyper branched polyester by means of enzymatic esterification The present invention relates to a process for preparing highly functional hyperbranched polyesters which comprises reacting a reaction solution comprising solvent and (a) one or more dicarboxylic acids or one or more derivatives thereof with one or mor... | 07/25/2006 |
| 7060217 | Composite articles comprising resorcinol arylate polyester and method for making thereof A shaped composite article is prepared by a process wherein an aesthetic laminate having a clear outer arylate layer and a colored compatible resin layer is thermoformed into a desired shape, and then compression molded together with a reinforced resin material cont... | 06/13/2006 |
| 7041781 | Thermoplastic molding compounds with improved surface properties and improved structural homogeneity Homo- and/or copolymers of one or more ethylenically unsaturated monomers, suitable for the preparation of molded articles that feature improved properties, especially improved fracture properties, heat stability and notched impact strength are disclosed. These homo... | 05/09/2006 |
| 7014921 | Aromatic liquid-crystalline polyester An aromatic liquid-crystalline polyester with good moldability into a film is provided. The resulting film has small dielectric loss. The polyester comprises repeating units represented by formulae (I), (II), (III) and (IV), and the molar amounts of repeating units ... | 03/21/2006 |
| 7014791 | Liquid crystalline polymer composition Liquid crystalline polymer having repeat units derived from 4,4′-biphenol, terephthalic acid, 2,6-naphthalenedicarboxylic acid, and 4-hydroxybenzoic acid in a limited compositional range have melting points of 400° C. or more, and are useful for molded articles a... | 03/21/2006 |
| 7009026 | Method for producing a liquid crystalline polyester and the liquid crystalline polyester The object is to provide liquid crystalline polyester which gives molded articles without generating acetic acid gas, and a method for producing the liquid crystalline polyester. This object is achieved by a method for producing a liquid crystalline polyester compri... | 03/07/2006 |
| 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 |
| 6924349 | Copolyester resin and articles using the same Disclosed is a copolyester resin composed mainly of terephthalic acid, ethyleneglycol, 1,4-cyclohexanedimethanol, polyethyleneglycol bisphenol-A and a multifunctional monomer. According to the current invention, the multifunctional monomer and polyethyleneglycol bis... | 08/02/2005 |
| 6917275 | Magnetic core and magnetic core-use adhesive resin composition The present invention provides a magnetic core whose outer surface has been coated without handling brittle ribbon to thereby impart insulating properties and shape retention properties to the magnetic core after annealing heat treatment, and further provides an adh... | 07/12/2005 |
| 6896966 | Articles of manufacture incorporating polyester/polycarbonate blends This invention relates to thermoplastic article having one or more decorative materials on the surface thereof which is obtained by applying heat and pressure to a laminate wherein said thermoplastic article comprises (1) one or more decorative materials; and (2) an... | 05/24/2005 |
| 6890988 | Aromatic polyester The present invention provides an aromatic polyester which is obtained by condensation polymerization reaction of terephthalic acid, 2,6-naphthalenedicarboxylic acid and acylated product obtained by acylation of parahydroxybenzoic acid and hydroquinone with fatty ac... | 05/10/2005 |
| 6861482 | Weatherable, thermostable polymers having improved flow composition The present invention describes the incorporation of several types of soft-block materials into resorcinol phthalate-co-polycarbonate polymers. In preferred embodiments, the soft-block materials contain aliphatic moieties or silicones as flexibilizing units. Several... | 03/01/2005 |
| 6818736 | Polymeric material, molded product and methods for their production Disclosed is a polymeric material obtained by melt-kneading, using a kneading apparatus, a resin composition containing an organic polymer having no metal alkoxy group and a metal alkoxide compound. The organic-inorganic hybrid polymeric material, a polymeric materi... | 11/16/2004 |
| 6812320 | Method for copolyestercarbonate synthesis Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking ... | 11/02/2004 |
| 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 |
| 6784278 | Polycarbonates, polyester carbonates and polyesters having branched terminal groups The use of phenols having a branched structure as terminal groups in polycarbonates, polyester carbonates and polyesters is disclosed. Also disclosed are polycarbonates, polyester carbonates and polyesters having such branched terminal groups, the process for their ... | 08/31/2004 |
