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公开(公告)号：JPH01161014A
公开(公告)日：1989-06-23
申请号：JP32075287
申请日：1987-12-17
Applicant: TORAY INDUSTRIES
Inventor： SUZUE SHIGERU , OKAMOTO MASARU , TABATA KENICHI
Abstract: PURPOSE:To produce a copolymerized polyester excellent in heat resistance at low cost, by reacting a specific aromatic hydroxycarboxylic acid, a polyester, a diol, a dicarboxylic acid, and acetic anhydride under specified conditions. CONSTITUTION:An aromatic hydroxycarboxylic acid of formula I (e.g., p- hydroxybenzoic acid), a polyester of formula II of a condensate obtained from an aromatic dicarboxylic acid and an alkylene glycol (e.g., polyethylene terephthalate), an aromatic diol of formula III (e.g., 4,4'-dihydroxybiphenyl), an aromatic dicarboxylic acid of formula IV (wherein Ar1-Ar4 are each a divalent aromatic group; and R1 is divalent alkylene) (e.g., terephathalic acid), and acetic anhydride are prepared. When these components are reacted to produce a polyester copolymer, part or the whole of the polyester of formula II is post-added to the reaction system wherein the temperature is 150 deg.C or above, thereby producing the aimed copolymerized polyester.
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公开(公告)号：JPS63139715A
公开(公告)日：1988-06-11
申请号：JP26839587
申请日：1987-10-23
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , INOUE SHUNEI , KATAOKA SHIRO
Abstract: PURPOSE:To obtain a high polymerization degree polymer only by melting and polymerization, and to manufacture the title moldable injection molded form having excellent optical anisotropy, heat resistance, rigidity and shock resistance by a normal molding machine by injection-molding copolymerized polyester consisting of a specific structural unit. CONSTITUTION:[(I)+(II)] in the structural unit formulae (I)-(III) of copolymerized polyester occupy 77-95mol% of the whole, and the mol ratio of (I)+(II) extends over 75/25-95/5. These condensation polymerization reactions are accelerated even in a noncatalytic manner, but it is preferable that a metallic compound such as stannous acetate, tetrabytultitanate, sodium acetate and potassium acetate, antimony trioxide, metallic magnesium, etc. is often added. Said copolymerized polyester is injection-molded. The thermal deformation temperature (load 18.6kg/cm ) of 150 deg.C or higher of an injection molded form is required.
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公开(公告)号：JPS6327381B2
公开(公告)日：1988-06-02
申请号：JP13997078
申请日：1978-11-14
Applicant: TORAY INDUSTRIES
Inventor： IIDA HIROSHI , OKAMOTO MASARU , MORIKAWA MASANOBU
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公开(公告)号：JPS63118325A
公开(公告)日：1988-05-23
申请号：JP26839487
申请日：1987-10-23
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , INOUE SHUNEI , KATAOKA SHIRO
IPC: C08G63/60 , C08G63/66 , C08G63/672
Abstract: PURPOSE:To obtain the titled injection-moldable polymer having excellent heat- resistance, rigidity, etc., by acylating p-hydroxybenzoic acid, an aromatic dihydroxy compound and a dicarboxylic acid, etc., and polymerizing the acylated compounds. CONSTITUTION:The objective polymer having a melt viscosity of preferably 10-15,000 poise and containing a structural unit of formula I-III (R1-R3 are bivalent aromatic group, etc.) wherein the amount of I+II is 77-95mol%, that of III is 23-5mol% and the molar ratio of I/II is 75/25-95/5 can be produced by (1) charging (A) p-hydroxybenzoic acid, (B) an aromatic dihydroxy compound (e.g. 4,4'-dihydroxybiphenyl), (C) an aromatic dicarboxylic acid (e.g. terephthalic acid) and (D) ethylene glycol together with e.g. acetic anhydride, (2) acylating the compounds preferably at room temperature-320 deg.C and (3) carrying out the polymerization under reduced pressure at 250-320 deg.C while removing acetic acid from the product. The component D may be an oligomer with the component C, etc.
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公开(公告)号：JPS6330523A
公开(公告)日：1988-02-09
申请号：JP17375486
申请日：1986-07-25
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , INOUE SHUNEI , KATAOKA SHIRO
Abstract: PURPOSE:To obtain the title optically anisotropic polyester which can give a molding excellent in moldability, heat resistance, rigidity and impact resistance, by reacting p-hydroxybenzoic acid with two specified aromatic polyesters. CONSTITUTION:A predetermined amount of p-hydroxybenzoic acid (A) is mixed with an aromatic polyester (B) obtained by reacting an aromatic diol (a) such as 4,4'-dihydroxybisphenol with an aromatic dicarboxylic acid (b) such as terephthalic acid and an aromatic polyester (C) (e.g., polyethylene terephthalate) obtained by reacting ethylene glycol (c) with component (b) each in a specified amount. The resulting mixture is polymerized through elimination of acetic acid to easily obtain the title polyester comprising 90-95 mol % total of structural units of formulas I and II (wherein R1 is a group of any one of formulas III-VI or the like, R1 is a group of formula III, IV or VII or the like) and 10-5 mol % structural units of formula VIII (wherein R3 is R2) in an amount equivalent to a I to II molar ratio of 75/25-95/5 and having a logarithmic viscosity of 0.5-5 dl/g (in pentafluorophenol in a 0.1 g/dl concentration at 60 deg.C).
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Patent Agency Ranking
公开(公告)号：JPS631971B2
公开(公告)日：1988-01-14
申请号：JP8779880
申请日：1980-06-30
Applicant: TORAY INDUSTRIES
Inventor： IIDA HIROSHI , OKAMOTO MASARU , YANAGI MASAKATA
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公开(公告)号：JPS62146950A
公开(公告)日：1987-06-30
申请号：JP28781385
申请日：1985-12-23
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA SEIICHI , OKAMOTO MASARU , INOUE SHUNEI
Abstract: PURPOSE:To provide the titled compsn. having excellent impact resistance, appearance, etc., by blending a thermoplastic polyester contg. a specified amount of a P compd. obtd. by using an Sb compd. as a polymn. reaction catalyst with an olefin copolymer having blycidyl groups. CONSTITUTION:A dicarboxylic acid component mainly composed of terephthalic acid and a diol component mainly composed of ethylene glycol are subjected to an esterification reaction to produce a low polymer. A specified amount of a phosphorus compd. (e.g., trimethyl phosphate) is added to the low polymer and a polymn. reaction is carried out in the presence of an Sb compd. (e.g., Sb2O3) as a polymn. catalyst. 100pts.wt. thermoplastic polyester contg. a phosphorus compd. in an amount satisfying the formula is blended with 0.5-80pts.wt. olefin copolymer having glycidyl groups (e.g., an ethylene/glycidyl methacrylate copolymer) to obtain the desired polyethylene terephthalate molding resin compsn.
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公开(公告)号：JPS62146948A
公开(公告)日：1987-06-30
申请号：JP28781185
申请日：1985-12-23
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA SEIICHI , OKAMOTO MASARU , INOUE SHUNEI
Abstract: PURPOSE:To provide the titled compsn. having excellent impact resistance, appearance, etc., by blending a polyethylene terephthalate resin prepd. by using a germanium compd. as a polymn. catalyst with an olefin copolymer having glycidyl groups. CONSTITUTION:A dicarboxylic acid component mainly composed of terephthalic acid is reacted with a diol component mainly composed of ethylene glycol in the presence of germanium compd. (e.g., germanium dioxide, germanium tetraethoxide) as a polymn. catalyst to produce a thermoplastic polyester. 100pts. wt. thermoplastic polyester is blended with 0.5-80pts.wt. olefin copolymer having glycidyl groups (e.g., an ethylene/glycidyl methacrylate copolymer, a propylene/glycidyl acrylate copolymer) to obtain the desired molding polyethylene terephthalate resin compsn.
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公开(公告)号：JPS6159334B2
公开(公告)日：1986-12-16
申请号：JP14227878
申请日：1978-11-20
Applicant: TORAY INDUSTRIES
Inventor： IIDA HIROSHI , OKAMOTO MASARU , MORIKAWA MASANOBU
IPC: C08G63/00 , C08G63/18 , C08G63/181 , C08G63/66 , C08G64/00
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公开(公告)号：JPS5891721A
公开(公告)日：1983-05-31
申请号：JP18971181
申请日：1981-11-26
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHIYUNEI , OKAMOTO MASARU , YANAGI MASAKATA
Abstract: PURPOSE:An aromatic copolyester capable of providing melt-molded products excellent in mechaical properties and optical anisotropy, comprising four kinds of residues derived from p-hydroxybenzoic acid, 4,4'-diphenyldicarboxylic acid, terephthalic acid and hydroquinone. CONSTITUTION:An aromatic copolyester containing structural units of formulasI-IV as essential constitutents, wherein the units of formulaIconstitute 30- 80mol% of the total, the molar ratio of formula II/formula III is 9/1-4/6, and the sum of formulas II and III is equimolar to formula IV. The structural unit of formulaIis a residue dervied by removing H and a hydroxyl group from p- hydroxy-benzoic acid, and the structural units of formulas II and III are residues derived by removing a hydroxyl group from each of 4,4'-diphenylcarboxylic acid and terephthalic acid, and the structural unit of formula IV is a residue derived by removing the terminal H from hydroquinone.
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