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公开(公告)号：JPH0948908A
公开(公告)日：1997-02-18
申请号：JP13496896
申请日：1996-05-29
Applicant: TORAY INDUSTRIES
Inventor： OOME HIROKAZU , YAMANAKA TORU , KUMAKI JIRO
Abstract: PROBLEM TO BE SOLVED: To provide a composite polyester material improved in rigidity, strengths, heat resistance, toughness, processability and surface appearance by dispersing an organic-modified product (B) of a layered compound having a cation exchange capacity in a thermoplastic polyester (A) in the form of single layers. SOLUTION: A composite polyester material comprising 100 pts.wt. component A and 0.5-10 pts.wt. component B, wherein component B has an average gravity center distance of 80Å or above and a content of aggregates of below 0.5 pt.wt. per 100 pts.wt. component A is provided. Component A is a high-molecular- weight thermoplastic resin (e.g. polybutylene terephthalate) having ester linkages in the main chain. Component B is the one prepared by ion-exchanging the interlaminar metallic cations of a layered compound for organic cations. This is produced by ion-exchanging the metallic ions of a layered compound (e.g. montmorillonite) for organic cations (e.g. 12-aminododecanoate ions), adding the ion-exchanged product to a polyester-forming monomers, applying force (e.g. ultrasonic waves) of increasing the interlaminar distance to sufficiently introduce the monomers among the layers and polymerizing the monomers.
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公开(公告)号：JPH0790163A
公开(公告)日：1995-04-04
申请号：JP23755393
申请日：1993-09-24
Applicant: TORAY INDUSTRIES
Inventor： KUMAKI JIRO , TABATA KENICHI , OOME HIROKAZU
Abstract: PURPOSE:To obtain the title resin excellent in coatability, adhesiveness, heat resistance, etc., by mixing a polyester resin of a specified composition with a polyether amide or/and a polyether ester and an organic phosphite or the like in a specified ratio. CONSTITUTION:100 pts.wt. polycyclohexylene dimethyleneterephthalate type polyester resin comprising at least 80mol%, based on the total repeating units, repeating units each derived by bonding a terephthalic acid residue with a 1,4-cyclohexanedimethanol residue is mixed with 0.05-20 pts.wt. polyether amide and/or polyether ester and 0.05-4 pts. wt. organophosphite or phosphonite compound at least one of whose P-O bonds is bonded to a 6-30 C aromatic group [e.g. tetrakis(2,4-di-t-butylphenyl)-4,4'-biphenylene phosphonite]. The obtained resin composition is formed into a lamp reflector base or the like.
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公开(公告)号：JPH04198357A
公开(公告)日：1992-07-17
申请号：JP32745090
申请日：1990-11-27
Applicant: TORAY INDUSTRIES
Inventor： OKITA KIYOMI , KUMAKI JIRO , KUWATA JOSHIN
Abstract: PURPOSE:To obtain a flame retardant aromatic polyester composition, excellent in retention stability in molding and mechanical characteristics without corroding electrical contacts at high temperatures for a long period by blending an aromatic polyester with a specific polybrominated styrene and, as necessary, a specified hindered phenolic compound. CONSTITUTION:A flame retardant aromatic polyester composition is obtained by blending (A) 100 pts.wt. aromatic polyester (e.g. polybutylene terephthalate) with (B) 0.5-60 pts.wt., preferably 2-15 pts.wt. polybrominated styrene containing structural units, produced from dibrominated styrene monomer and expressed by the formula as a main constituent component and having 1X10 to 30X10 , preferably 1X10 to 15X10 number-average molecular weight and, as necessary, (C) 0.001-5 pts.wt., preferably 0.05-3 pts.wt. hindered phenolic compound [e.g. 4,4'-butylidene-bis(3-methyl-6-tert-butylphenol] having >=500 molecular weight.
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公开(公告)号：JPH04175366A
公开(公告)日：1992-06-23
申请号：JP27490390
申请日：1990-10-12
Applicant: TORAY INDUSTRIES
Inventor： MATSUO NAOYUKI , KUMAKI JIRO , KUWATA JOSHIN
Abstract: PURPOSE:To prepare the title compsn. resistant to degradation in toughness at high temp. and excellent in rigidity and moldability by compounding a polybutylene terephthalate resin, a bisphenol A polycarbonate, and an epoxy compd. and/or a polycarbodiimide. CONSTITUTION:The title compsn. comprises 100 pts.wt. polybutylene terephthalate resin, 0.1-10 pts.wt. bisphenol A polycarbonate or oligomer thereof, and 0.1-5 pts.wt. at least one compd. selected from the group consisting of an epoxy compd. having at least two epoxy groups in the molecule and a polycarbodiimide having at least two carbodiimide groups in the molecule. The addition of a thermoplastic elastomer to the compsn. improves the toughness and durability of the compsn. synergistically.
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公开(公告)号：JP2003268223A
公开(公告)日：2003-09-25
申请号：JP2002077801
申请日：2002-03-20
Applicant: TORAY INDUSTRIES
Inventor： OOME HIROKAZU , KUMAZAWA SADANORI , KUMAKI JIRO
IPC: C08J5/00 , C08K5/00 , C08L67/04 , C08L101/16
Abstract: PROBLEM TO BE SOLVED: To provide a resin composition excellent in moldability, mechanical properties, heat resistance, and surface properties; and a molded article comprising the same. SOLUTION: The resin composition contains a polylactic acid resin, a polyacetal resin, and a mold release agent. In the composition, the polylactic acid resin and the polyacetal resin are compatibilized with each other. The mold release agent is at least one substance selected from the group consisting of higher fatty acids, higher fatty acid metal salts, oxy fatty acids, fatty acid esters, paraffin, low-molecular-weight polyolefins, aliphatic amides, and alkylenebis fatty acid amides. The molded article is prepared from the resin composition. COPYRIGHT: (C)2003,JPO
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Patent Agency Ranking
公开(公告)号：JP2003238672A
公开(公告)日：2003-08-27
申请号：JP2002037876
申请日：2002-02-15
Applicant: TORAY INDUSTRIES
Inventor： KUMAZAWA SADANORI , OOME HIROKAZU , KUMAKI JIRO
IPC: C08G63/80
Abstract: PROBLEM TO BE SOLVED: To provide a production method for easily obtaining a poly(lactic acid) block copolymer that forms a poly(lactic acid) stereocomplex having a high molecular weight and a high melting point. SOLUTION: This method for producing a poly(lactic acid) block copolymer comprises (1) a first step of producing each of poly(L-lactic acid) composed of an L-lactic acid unit and poly(D-lactic acid) composed of a D-lactic acid unit, (2) a second step of mixing poly(L-lactic acid) and poly(D-lactic acid) obtained at the first step, and (3) a third step of solid-phase-polymerizing the mixture of poly(L-lactic acid) and poly(D-lactic acid) obtained at the second step at a temperature lower than its melting point. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002294052A
公开(公告)日：2002-10-09
申请号：JP2001094563
申请日：2001-03-29
Applicant: TORAY INDUSTRIES
Inventor： ISHII HIROMITSU , KUMAKI JIRO , NAGAO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To obtain both a flame-retardant resin composition and a molding, having excellent flame retardance, mechanical characteristics, fluidity in injection molding and color tone of molding, hardly causing bleedout, having excellent hydrolytic resistance by compounding a polyalkylene terephthalate resin with a nonhalogen-based flame retardant. SOLUTION: This flame-retardant resin composition is obtained by compounding (A) 100 wt.% of the polyalkylene terephthalate resin having
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公开(公告)号：JP2002220454A
公开(公告)日：2002-08-09
申请号：JP2001356903
申请日：2001-11-22
Applicant: TORAY INDUSTRIES
Inventor： KUMAZAWA SADANORI , OOME HIROKAZU , UTAZAKI KENICHI , KUMAKI JIRO
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition excellent in hydrolysis resistance and further less in evolving gas and viscosity variation when it is melted. SOLUTION: The composition is characterized by preparing it by kneading with a polyester, a molten mixture of (c) a glycidyl ester compound, (c) a glycidyl ether compound and (d) a catalyst.
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公开(公告)号：JP2001114880A
公开(公告)日：2001-04-24
申请号：JP29311799
申请日：1999-10-15
Applicant: TORAY INDUSTRIES
Inventor： KUMAZAWA SADANORI , OOME HIROKAZU , KUMAKI JIRO
Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently producing a polyester (PBT) having a low concentration of a carboxy terminal group, and excellent in hydrolysis resistance. SOLUTION: This method for producing the polyester comprising using a combined catalyst system of a titanium compound with a tin compound, or a single catalyst system of the tin compound, carrying out an esterification reaction or an ester-interchange reaction of an aromatic dicarboxylic acid or an ester-forming derivative thereof, and a diol consisting essentially of 1,4- butanediol, and subjecting the product to a polycondensation reaction, is characterized in that an alkaline compound is added to the reaction mixture at an arbitrary step before finishing the polycondensation reaction.
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公开(公告)号：JP2001048968A
公开(公告)日：2001-02-20
申请号：JP22814099
申请日：1999-08-12
Applicant: TORAY INDUSTRIES
Inventor： KUMAZAWA SADANORI , OOME HIROKAZU , KUMAKI JIRO
IPC: C08G63/78 , C08G63/183
Abstract: PROBLEM TO BE SOLVED: To obtain polybutylene terephthalate excellent in quality and capable of being used in various kinds of uses as fiber, film and injection molded products by conducting esterification reaction and polycondensation reaction of 1,4-butylene glycol containing 2-(4'-hydroxybutoxy)tetrahydrofuran and terephthalic acid containing acetic acid as raw materials by a direct polymerization method. SOLUTION: By conducting esterification reaction and polycondensation reaction of a glycol comprising 1,4-butylene glycol as a principal ingredient and 0.05 to 0.5 wt.% 2-(4'-hydroxybutoxy)tetrahydrofuran and a dicarboxylic acid comprising terephthalic acid as a principal ingredient and 0.003 to 0.2 wt.% acetic acid, polybutylene terephthalate is obtained. The esterification reaction is conducted preferably at a reaction temperature of 180 to 250 deg.C, a pressure of 100 to 600 mmHg and a polybutylene terephthalate oligomer conversion of >=97%.
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