Reactant Contains A Fused- Or Bridged-ring Other Than Solely As A Polycarboxylic Acid Anhydride Group Patents (Class 528/190)
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Patent number: 7799424Abstract: A resin composition includes an aliphatic polyester resin. The resin has carboxyl groups at the end termini of the molecular chain and at least one compound represented by the general formula (I), the compound being added to the resin to cap a part or all of the carboxyl groups at the end termini of the molecular chain of the resin. A process for producing a fiber includes mixing a pellet comprising an aliphatic polyester resin having carboxyl groups at the end termini of the molecular chain with a compound represented by the general formula (I) so that the content of the compound becomes 0.1 to 8% by weight and then melt-spinning the resulting mixture under the conditions of a spinning temperature of 200 to 250 C.°, a melt residence time of 180 to 1800 sec and a spinning rate of 500 to 10000 m/min.Type: GrantFiled: March 27, 2006Date of Patent: September 21, 2010Assignee: Toray Industries, Inc.Inventors: Katsuhiko Mochiduki, Takaaki Mihara
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Patent number: 7776991Abstract: The disclosure contains a medical article comprising a polymer containing polyesters and, optionally, agents for use with medical articles and methods of fabricating the same are disclosed. The medical article generally comprises an implantable substrate having a coating, and the coating contains a polymer comprising a polymeric product of a reaction comprising a polyol and a polycarboxylic acid.Type: GrantFiled: June 19, 2009Date of Patent: August 17, 2010Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Yiwen Tang
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Patent number: 7750109Abstract: The invention relates to methods and systems for the use of an oligomer recyclate from a depolymerization product stream. The oligomer byproduct of a polyester depolymerization reaction can be used as a reactant in the formation of a polyester. For example, linear oligomer byproduct can be used as a reactant in a solution polymerization to form a low-acid polyalkylene terephthalate.Type: GrantFiled: March 24, 2006Date of Patent: July 6, 2010Assignee: Cyclics CorporationInventors: Peter D. Phelps, Jimmy Lynn Webb, David Patrick Phelon, Paul M. Andrusyszyn, Gary R. Faler
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Patent number: 7740941Abstract: 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; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: January 29, 2009Date of Patent: June 22, 2010Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7737244Abstract: The present invention relates to a process for preparing polyarylate, and more specifically, to a process for preparing polyarylate by interfacial polymerization of a bivalent phenol compound and an aromatic dicarboxylic acid or a halide thereof, which comprises mixing a cationic catalyst for the phase transition and a nonionic surfactant in a predetermined ratio, to further increase the yield of polyarylate, as compared with the case of using each of the nonionic surfactant and the cationic catalyst for the phase transition alone.Type: GrantFiled: February 16, 2007Date of Patent: June 15, 2010Assignee: LG Chem, Ltd.Inventors: Dae-Woo Nam, Dong-Ryul Kim, Hyo-Sun Lee, Boong-Goon Jeong, Sang-Uk Ryu, Hee-Jung Kim, Ju-Eun Cha
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Patent number: 7718754Abstract: A promoter for a polycondensation reaction used together with a catalyst in a polycondensation reaction, the promoter for a polycondensation reaction comprising a pyrogallol compound having a benzene ring of which three hydrogen atoms adjacent to each other are substituted by hydroxyl groups; and a polycondensation resin obtained by polycondensing raw material monomers using the promoter as defined above and the catalyst. A polycondensation resin can be produced using the promoter of the present invention together with a catalyst in a polycondensation reaction, and the polycondensation resin can be used in various applications including, for example, films, sheets, fibers, toner materials for electrophotography, and the like.Type: GrantFiled: July 3, 2008Date of Patent: May 18, 2010Assignee: Kao CorporationInventors: Eiji Shirai, Yoshitomo Kimura, Yasunori Inagaki, Takashi Kubo, Naoki Morita, Ryo Koike, Hiromi Iida
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Publication number: 20100121018Abstract: The present invention can provide a polycarbonate resin containing a structural unit represented by the following formula (1). In the formula (1), R represents one selected from an alkyl group having 1 to 9 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms, and halogen; and n represents the number of substituting R's on a benzene ring and is an integer of 0 to 4. Y represents an alkylene group having 1 to 4 carbon atoms; and p is an integer of 0 to 4.Type: ApplicationFiled: May 19, 2008Publication date: May 13, 2010Inventors: Shu Yoshida, Toshiaki Yamada
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Patent number: 7704605Abstract: 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; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: February 4, 2009Date of Patent: April 27, 2010Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7687594Abstract: 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 monomer, A is 0-0.8, B is 0-0.8, C is 0-1, D is 0-1, E is 0-0.8, F is 0-0.8, C+D<0.2 and A+B+E+F<0.8. The diacid monomer comprises TPA and an aromatic or aliphatic diacid monomer, the diol monomer comprises EG, 1,3 and 1,4-CHDM, and an aromatic or aliphatic diol monomer.Type: GrantFiled: June 24, 2008Date of Patent: March 30, 2010Assignee: Industrial Technology Research InstituteInventors: Chi-Yuan Hung, Cheng-Hsing Fan, Yuhsin Tsai, Fu-Yu Tsai
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Patent number: 7674878Abstract: Disclosed is a method of producing a non-adhering granulate above the glass-transition temperature comprising a polyester material, in which the polyester material is introduced into a cooling water flow as a melt and is separated from the cooling water after passing through a cooling stretch. The dwell time of the polyester material in the cooling stretch is 0.2-5 sec, and the cooling water has a pressure of at least 2 bar along the cooling stretch. For the thus obtained granulate, post-crystallization is not required, at least not in every case. It has been shown that the granulate does not adhere, even without post-crystallization and mechanical movement if no additional external input of energy takes place. Even during heating under pressure, no adhesion could be observed.Type: GrantFiled: March 13, 2007Date of Patent: March 9, 2010Assignee: Uhde Inventa-Fischer AGInventors: Kurt Hanimann, Werner Stibal
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Patent number: 7671164Abstract: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.Type: GrantFiled: May 21, 2008Date of Patent: March 2, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Jorge Garcia Agudo, Jan Henk Kamps, Hans Looij, Fernando Olmedo Fernandez, Dennis James Patrick Maria Willemse
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Patent number: 7569655Abstract: Polymers containing polyesters and, optionally, agents for use with medical articles and methods of fabricating the same are disclosed. The medical article generally comprises an implantable substrate having a coating, and the coating contains a polymer comprising a polymeric product of a reaction comprising a polyol and a polycarboxylic acid.Type: GrantFiled: March 21, 2007Date of Patent: August 4, 2009Assignee: Abbott Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Yiwen Tang
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Publication number: 20090170927Abstract: The present invention relates to compounds of formula I, which are functionalized phenolic compounds, and polymers formed from the same. Ar—[O—(X)p—R?]q??I Polymers formed from the functionalized phenolics are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.Type: ApplicationFiled: October 16, 2006Publication date: July 2, 2009Applicant: BEZWADA BIOMEDICAL, LLCInventor: Rao S. Bezwada
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Patent number: 7541417Abstract: A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A, contacting the solution A with an adsorbent material selected from the group consisting of metal oxides, modified metal oxides, activated carbons, and clays, filtering the adsorbent material to form a solution B, adding an anti-solvent to the solution B to form a solution C, and distilling the solution C, wherein the dihydric phenol is represented by Formula (I): wherein R is a hydrogen atom or an aliphatic functionality having 1 to 6 carbon atoms and n is an integer having a value of 1 to 4.Type: GrantFiled: March 30, 2006Date of Patent: June 2, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Sunil Ashtekar, Mahesh Malusare, Gurram Kishan, Pushpa Narayanan, Ramanarayanan GV, Arun Dixit, Pradeep Nadkarni, Jan Plen Lens
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Patent number: 7538176Abstract: The aim of the invention is to stably provide a polyester polymer which has excellent transparency, mechanical and electric characteristics, and extremely low optical anisotropy and excellent moldability and size stability for engineering plastics, particularly suitable for optical materials. The above-mentioned problem can be achieved by a polyester polymer, obtainable from a dicarboxylic acid compound and a dihydroxy compound, wherein the dicarboxylic acid compound comprises an alicyclic dicarboxylic acid and/or its ester-forming derivative, the dihydroxy compound comprises a compound of the general formula (1): and a content of a diethylene glycol in the polyester polymer is 6 mol % or lower.Type: GrantFiled: February 27, 2004Date of Patent: May 26, 2009Assignee: Osaka Gas Co., Ltd.Inventors: Michiaki Fuji, Yoshimi Ito
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Patent number: 7538180Abstract: Coatings for an implantable medical devices such as stents and methods of fabricating thereof are disclosed. The coatings comprise a biologically absorbable poly(ester amide), which is a polymeric product of a reaction between a diol-diamine and a dicarboxylic acid.Type: GrantFiled: March 22, 2007Date of Patent: May 26, 2009Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Jessica R. DesNoyer
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Ionizing radiation stable thermoplastic composition, method of making, and articles formed therefrom
Patent number: 7528212Abstract: A thermoplastic composition comprises a polycarbonate that is not aryl carboxylate end-capped, and an aryl carboxylate end-capped polycarbonate of formula: Ar1—C(O)—O-(-L-)m-O—C(O)—A1 wherein each Ar1 is independently an aryl group, -(-L-)m- is a polycarbonate linking group with m units of linking unit L, and m is at least one; wherein the aryl carboxylate end-capped polycarbonate has aryl carboxylate end groups present in the thermoplastic composition in an amount of 0.01 to 500 mmol/Kg based on the combined weights of the polycarbonate that is not aryl carboxylate end-capped, and the aryl carboxylate end-capped polycarbonate, and wherein a molded article having a thickness of 3.2±0.12 millimeters and consisting of the aryl carboxylate end-capped polycarbonate, the polycarbonate, and less than or equal to 1.Type: GrantFiled: November 18, 2005Date of Patent: May 5, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventor: Brian Mullen -
Patent number: 7528210Abstract: A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A; contacting the solution A with a zeolite; filtering the zeolite to form a solution B; adding an anti-solvent to the solution B to form a solution C; and distilling the solution C; wherein the dihydric phenol is represented by Formula (I): wherein R is a hydrogen atom or an aliphatic functionality having 1 to 6 carbon atoms and n is an integer having a value 1 to 4.Type: GrantFiled: March 30, 2006Date of Patent: May 5, 2009Assignee: SABIC Innovative Plastics IP B.V.Inventors: Guohua Xiu, Tong Sun, Jan Plen Lens, Sunil Ashtekar, Mahesh Malusare, Gurram Kishan, Pushpa Narayanan
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Publication number: 20090105443Abstract: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.Type: ApplicationFiled: May 21, 2008Publication date: April 23, 2009Inventors: Hans-Peter BRACK, Maarten Antoon Jan CAMPMAN, Jorge GARCIA AGUDO, Jan Henk KAMPS, Hans LOOIJ, Fernando OLMEDO FERNANDEZ, Dennis James Patrick Maria WILLEMSE
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Patent number: 7510768Abstract: 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; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: March 28, 2006Date of Patent: March 31, 2009Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Publication number: 20090032776Abstract: The invention relates to polymers containing at least 0.5 mol % of units of formula (3) wherein J, M, X1, X2, Y1p, Y2n, Y3m and q are as defined in the specification.Type: ApplicationFiled: January 18, 2007Publication date: February 5, 2009Applicant: Merck Patent GmbHInventors: Junyou Pan, Rene Scheurich
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Patent number: 7402650Abstract: A process for preparing polyarylate wherein a bivalent phenol compound having the structure of Formula 1 and an aromatic dicarboxylic acid halogen compound react to prepare a polyarylate, and wherein a nonionic surface-active agent is added. This decreases residual salts and improves the transmittance and the heat-resistance. In Formula 1, R1, R2, R3 and R4 denote the same as illustrated in the description.Type: GrantFiled: September 14, 2005Date of Patent: July 22, 2008Assignee: LG Chem, Ltd.Inventors: Hee-jung Kim, Dong-ryul Kim, Sang-uk Ryu, Sang-hyun Park
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Patent number: 7399799Abstract: 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 sulfonate of Formula 2 separately reacts with ethylene glycol so that an extent of the ester interchange reaction is 95% or more to synthesize bis(hydroxyethyl terephthalate) containing metal sulfonate of Formula 3, bis(hydroxyethyl terephthalate) is fed so that a content of bis(hydroxyethyl terephthalate) is 0.01-5 mol % based on a diacid component in a polymer in a course of producing polyester, a phosphorus-based flame retardant of Formula 1 is fed so that a content of a phosphorus atom is 500-40000 ppm based on the polymer, and the mixture is copolymerized. The polyester polymer is dyeable with cationic dye while having excellent flame retardancy, and can be melt-spun like other polymers capable of being melt-spun.Type: GrantFiled: September 30, 2004Date of Patent: July 15, 2008Assignee: Hyosung CorporationInventors: Seung-Cheol Yang, Eung-Soo Kim, Yang-Kuk Son, Ik-Hyeon Kwon
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Patent number: 7396896Abstract: Poly(trimethylene dicarboxylate) prepared by polycondensation of: (a) 1,3-propanediol; (b) aliphatic or aromatic diacid or diester; and (c) from about 0.01 to about 0.2 mole %, based on the total number of moles of 1,3-propanediol and diacid or ester, of polyfunctional reactant containing three or more carboxylic acid type groups or hydroxy groups. Shaped articles, including bottles, are made from the poly(trimethylene dicarboxylate).Type: GrantFiled: August 9, 2005Date of Patent: July 8, 2008Assignee: E.I. Dupont De Nemours and CompanyInventor: Joseph V. Kurian
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Patent number: 7393467Abstract: 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 solid state.Type: GrantFiled: January 30, 2006Date of Patent: July 1, 2008Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Motoki Asahara, Tetsuhide Sawada, Hiroyuki Kato
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Patent number: 7344657Abstract: An aromatic liquid-crystalline polyester composition is provided, which comprises at least one compound selected from an aliphatic carboxylate aryl ester and an aromatic carboxylic anhydride; an aromatic liquid-crystalline polyester; and a solvent containing at least 30% by weight of a halogen-substituted phenol compound. Using the composition, an aromatic liquid-crystalline polyester film with a low viscosity in melting state can be obtained.Type: GrantFiled: September 23, 2005Date of Patent: March 18, 2008Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Shiro Katagiri
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Patent number: 7341675Abstract: 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 for service at high temperatures. Compositions containing reinforcing agents, especially fibrous or platy reinforcing agents are particularly useful. These polymers and compositions are useful for electrical and electronic connectors, and as films for the electronics industry, and for other uses.Type: GrantFiled: April 12, 2006Date of Patent: March 11, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Richard Alan Jackson, Marion G. Waggoner
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Patent number: 7304121Abstract: 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): wherein, p, q, r and s represent relative molar proportions (mol %) of the repeating units in the liquid-crystalline polyester resin and satisfy the following formulae: 60?p?80, 10?r?20, 10?q+s?20, 0.05?s/(q+s)?0.3, p+q+r+s=100; and (2) heating the prepolymer in substantially solid state at 250-350° C., provided that the liquid crystalline polyester has a deflection temperature under load of 280-340° C., and a melt viscosity of 10-60 Pa·s.Type: GrantFiled: July 13, 2005Date of Patent: December 4, 2007Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Hiroyuki Kato, Motoki Asahara, Tetsuhide Sawada
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Patent number: 7291435Abstract: The present invention provides a toner binder for electrophotography which comprises a polyester resin constituted of an alcohol component containing a polyoxyalkylene ether (A) of a bisphenol and an acid component, and the content of unreacted bisphenols in said polyester resin is 15 ppm or less.Type: GrantFiled: March 25, 2003Date of Patent: November 6, 2007Assignee: Sanyo Chemical Industries, Ltd.Inventor: Takashi Yamashiro
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Publication number: 20070219338Abstract: A self-assembling polymer film material comprising a polymer comprising recurring hydroxystyrene units and having a Mw of up to 20,000 is provided. When a polymer comprising hydroxystyrene units is used in the form of a block copolymer or a blend with another polymer, the material is capable of self-assembling to form a pattern of microdomain structure having a size of up to 20 nm that is difficult to achieve with prior art block copolymers.Type: ApplicationFiled: March 13, 2007Publication date: September 20, 2007Inventors: Takanobu Takeda, Osamu Watanabe
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Patent number: 7238769Abstract: The present invention provides a method for joining liquid-crystalline polyester resin composition parts, characterized in that the melting point of the liquid crystalline polyester resin measured by differential scanning calorimeter is 190-250° C. and that the parts are jointed by means of welding. By using the method of the present invention, jointed articles with sufficient joint strength are provided with accuracy.Type: GrantFiled: May 10, 2005Date of Patent: July 3, 2007Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Masaya Kitayama, Naoshi Saito
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Patent number: 7214759Abstract: Polymers containing polyesters and, optionally, agents for use with medical articles and methods of fabricating the same are disclosed. The medical article generally comprises an implantable substrate having a coating, and the coating contains a polymer comprising a polymeric product of a reaction comprising a polyol and a polycarboxylic acid.Type: GrantFiled: November 24, 2004Date of Patent: May 8, 2007Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Yiwen Tang
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Patent number: 7179401Abstract: 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) wherein one of m and n is 1 and the other is 2, and a composition including the polymer are provided. The molded article obtained from the thermotropic liquid crystalline polymer or the composition has less anisotropy in mechanical strength and improved weld strength.Type: GrantFiled: June 11, 2002Date of Patent: February 20, 2007Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Masaya Kitayama, Kiichi Kometani, Hiroyuki Kato, Motoki Asahara
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Patent number: 7175779Abstract: 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 invention also provides a method for the preparation of the present polymers as well as a method of increasing the melt-processibility of polyester-based liquid crystalline polymers comprising the step of incorporating into the polymers 1 to 30 mol-% of, e.g., a ortho-substituted monomer with hydroxyl and/or carboxylic groups.Type: GrantFiled: May 3, 2000Date of Patent: February 13, 2007Assignee: Optatech CorporationInventors: Hans Kricheldorf, Andreas Gerken
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Patent number: 7173102Abstract: 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 identify and optimize the facial amphiphilicity of polyamide, polyester, polyurea, polyurethane, polycarbonate and polyphenylene polymers. Utility as a contact disinfectant is disclosed.Type: GrantFiled: March 7, 2002Date of Patent: February 6, 2007Assignee: The Trustees of the University of PennsylvaniaInventors: William F. DeGrado, Gregory N. Tew, Michael L. Klein, Dahui Liu, Jing Yuan
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Patent number: 7169859Abstract: 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 of the aromatic carbonate units, or a combination comprising each of these. In one embodiment, a soft block moiety comprises a polysiloxane unit. A film of the composition has a percent transmittance of greater than or equal to 60% as determined according to ASTM D1003-00. A method of forming a copolymer composition is disclosed, comprising substantially forming the bis-haloformates of a dihydroxy compound comprising an arylate polyester unit, and a dihydroxy compound comprising a soft-block moiety, and reacting the bis haloformates with a dihydroxy aromatic compound.Type: GrantFiled: December 29, 2004Date of Patent: January 30, 2007Assignee: General Electric CompanyInventors: Gary C. Davis, Brian D. Mullen, Paul D. Sybert
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Patent number: 7157525Abstract: 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 through melt polymerization in the presence of hydroxy carboxylic acid compound and subjecting the mixture to reactive extrusion to increase the molecular weight and crosslinking degree of the elastomer resin. The thermoplastic elastomer resin according to the present invention has good properties for automobile parts, particularly constant velocity joint boots and bellows.Type: GrantFiled: December 17, 2003Date of Patent: January 2, 2007Assignee: Samyang CorporationInventors: Sung-Hwan Cho, Sun-Woong Kim, Jun-Hee Lee, Oh-Kwun Son, Byung-Ho Lim
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Patent number: 7132499Abstract: A polyester resin container with improved weatherability as well as colorlessness and heat resistance, made of a polyester resin composition comprising (A) 100 parts by weight of a polyester resin and (B) 0.01 to 10 parts by weight of a triazine ultraviolet absorber represented by formula (I): wherein R1 represents a straight-chain or branched alkyl group having 1 to 17 carbon atoms, which may have an alicyclic group at the terminal or in the chain thereof; and R2, R2?, R3, and R3? each represent a hydrogen atom or a methyl group.Type: GrantFiled: May 18, 2005Date of Patent: November 7, 2006Assignee: Asahi Denka Co., Ltd.Inventors: Etsuo Tobita, Yoshinori Negishi, Takahiro Horikoshi
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Patent number: 7132497Abstract: 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 and improved flowability.Type: GrantFiled: August 19, 2004Date of Patent: November 7, 2006Assignee: Bayer Materialscience AktiengesellschaftInventors: Helmut-Werner Heuer, Rolf Wehrmann
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Patent number: 7119161Abstract: A pixel that includes a liquid crystal material and one or more of an anisotropic nanoparticle and an anisotropic nanostructure is provided. Displays including the pixel are also disclosed. An ink which includes a liquid crystal material and one or more of an anisotropic nanoparticle and an anisotropic nanostructure is also provided.Type: GrantFiled: March 31, 2005Date of Patent: October 10, 2006Assignee: Solaris Nanosciences, Inc.Inventor: Nabil M. Lawandy
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Patent number: 7115700Abstract: Polycarbonates containing low or undetectable levels of Fries rearrangement products and comprising repeat units derived from one or more of resorcinol, hydroquinone, methylhydroquinone, bisphenol A, and 4,4?-biphenol have been prepared by the melt reaction of one or more of the aforementioned dihydroxy aromatic compounds with an ester-substituted diaryl carbonate such as bis-methyl salicyl carbonate. Low, or in many instances undetectable, levels of Fries rearrangement products are found in the product polycarbonates obtained as the combined result of a highly effective catalyst system which suppresses the Fries reaction and the use of lower melt polymerization temperatures relative to temperatures required for the analogous polymerization reactions using diphenyl carbonate.Type: GrantFiled: May 19, 2005Date of Patent: October 3, 2006Assignee: General Electric CompanyInventors: James Anthony Cella, Jan Henk Kamps, Jan Pleun Lens, Kathryn Lynn Longley, Patrick Joseph McCloskey, Narayan Ramesh, Warren William Reilly, Paul Michael Smigelski, Jr., Marc Brian Wisnudel
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Patent number: 7087704Abstract: 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 having 50 mol % or larger ratio of constitutive unit introduced from 4-hydroxybenzoic acid, the reaction is conducted under the presence of an acylating agent and of a catalyst quantity of aromatic sulfonic acid.Type: GrantFiled: March 7, 2005Date of Patent: August 8, 2006Assignee: Polyplastics Co., Ltd.Inventors: Keiichi Kanaka, Shinya Yamada
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Patent number: 7081510Abstract: The invention provides a shell material for recording media comprising an alloy between an acrylonitrile-butadiene-styrene resin and recovery polyethylene terephthalate, the content of recovery polyethylene terephthalate in the total amount of the alloy being in the range of 5 to 80% by mass. The invention also provides a shell material for recording media comprising an alloy between an acrylonitrile-butadiene-styrene resin and recovery polyethylene terephthalate and having a window part. The content of recovery polyethylene terephthalate in the total amount of the alloy is in the range of 5 to 80% by mass, and the window part comprises the polyethylene terephthalate resin, a polycarbonate resin or a polyphenylene ether resin as a constituting material.Type: GrantFiled: March 9, 2004Date of Patent: July 25, 2006Assignee: Sony CorporationInventors: Yasuhito Inagaki, Masahiro Sawaguchi, Daisuke Hasegawa, Tadanori Kawamura
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Patent number: 7063892Abstract: An aromatic liquid-crystalline polyester having a small dielectric loss in a wide frequency region is provided. An aromatic liquid-crystalline polyester is provided that can manufacture a film having a small volume expansion by heating. An aromatic liquid-crystalline polyester substantially comprising a repeating structural unit originating in 2-hydroxy-6-naphthoic acid 30 to 80 mol %, a repeating structural unit originating in aromatic diol 35 to 10 mol %, and a repeating structural unit originating in aromatic dicarboxylic acid 35 to 10 mol %.Type: GrantFiled: December 17, 2003Date of Patent: June 20, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Tomoya Hosoda, Shinji Ohtomo
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Patent number: 7014921Abstract: 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 (I)–(IV) are 40–74.8%, 12.5–30%, 12.5–30% and 0.2–15%, respectively, wherein the molecular amounts of repeating units (III) and (IV) satisfy the relation of (III)/[(III)+(IV)]?0.5.Type: GrantFiled: November 3, 2004Date of Patent: March 21, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Tomoya Hosoda
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Patent number: 7009026Abstract: 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 comprising melt-polymerizing aromatic hydroxycarboxylic acid represented by the formula (I), aromatic diol represented by the formula (II), and aromatic dicarboxylic acid represented by the formula (III) with using a diaryl carbonate represented by the formula (IV).Type: GrantFiled: August 26, 2003Date of Patent: March 7, 2006Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Manabu Hirakawa
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Patent number: 6984712Abstract: The present invention provides a liquid-crystalline polyester resin which comprises monomer units derived from 2-hydroxy-3-naphthoic acid and/or 2-hydroxynaphthalene-3,6-dicarboxylic acid in an amount of 1-5000 mmol % based on the total monomer components of the resin and an alkaline metal compound in an amount of 10-3000 ppm as alkaline metal based on the total monomer components of the resin. The liquid-crystalline polyester resin of the present invention has good colorability, improved heat resistance and good mechanical properties.Type: GrantFiled: November 25, 2002Date of Patent: January 10, 2006Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Masaya Kitayama, Kiichi Kometani, Hiroyuki Kato, Kazunori Ueda
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Patent number: 6890988Abstract: 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 acid anhydride, wherein said aromatic polyester satisfy the following conditions (A) to (D), and the acylation and/or the condensation polymerization reaction are conducted in the presence of heterocyclic organic compound containing at least two nitrogen atoms: (A): Number of moles of a monomer unit derived from parahydroxybenzoic acid (UNIT (1)) is 54-62 moles per 100 moles of UNIT (1), a monomer unit derived from hydroquinone (UNIT (2)), a monomer unit derived from terephthalic acid (UNIT (3)) and a monomer unit derived from 2,6-naphthalenedicarboxylic acid (UNIT (4)) in total; (B): Number of moles of UNIT (2) is 19-23 moles per 100 moles of UNIT (1), UNIT (2), UNIT (3) and UNIT (4) in total; (C): The molar ratio of UNIT (3) and UNIT (4), which isType: GrantFiled: February 25, 2003Date of Patent: May 10, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Tomoya Hosoda, Hiroshi Harada, Satoshi Okamoto
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Patent number: 6867280Abstract: A process for producing an aromatic liquid crystal polyester comprising reacting an aromatic diol, an aromatic hydroxycarboxylic acid, or an aromatic diol and aromatic hydroxycarboxylic acid with an aromatic dicarboxylic acid in the presence of a fatty anhydride having carbon atoms of 4 or less and a fatty anhydride having carbon atoms of over 4.Type: GrantFiled: January 16, 2002Date of Patent: March 15, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Satoshi Okamoto, Manabu Hirakawa
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Patent number: RE41616Abstract: A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350° C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.Type: GrantFiled: December 17, 2003Date of Patent: August 31, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Steven Frederick Hubbard, Radislav Alexandrovich Potyrailo, Philippe Schottland, Verghese Thomas