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公开(公告)号：JPH06192403A
公开(公告)日：1994-07-12
申请号：JP34462492
申请日：1992-12-24
Applicant: TORAY INDUSTRIES
Inventor： KUREMATSU TOSHIO , ICHIKAWA YASUNORI , INOUE SHUNEI
Abstract: PURPOSE:To improve the yield of pellets of a liq. crystalline polyester which contains little contaminants and does not clog a nozzle. CONSTITUTION:A liq. crystalline polyester is produced by continuous batch polymn. wherein a liq. crystalline polyester is formed by soln. polymn. in a polymn. vessel equipped with a feed charge or liq. transporting port, a polymerizate discharge port, a stirrer, and a jacket, and the resulting polymer melt is discharged, while the next batch of feedstock is fed to the vessel to repeat the polymn. The polymn. is carried out under such a condition that the polymer melt is discharged from the vessel until the amt. of melt remaining reaches 30kg per m or lower of the internal vol. of the vessel before the next batch is fed.
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公开(公告)号：JPH0673272A
公开(公告)日：1994-03-15
申请号：JP22858692
申请日：1992-08-27
Applicant: TORAY INDUSTRIES
Inventor： AKIYAMA FUMIO , INOUE SHUNEI
IPC: C08L67/00
Abstract: PURPOSE:To obtain a liquid-crystal polyester resin composition excellent in weld strength and lowly anisotropic in mechanical properties. CONSTITUTION:This resin composition is obtained by mixing 100 pts.wt. liquid- crystal polyester resin that forms an anisotropic molten phase with 0.01-30 pts.wt. olefin oligomer modified with an unsaturated carboxylic acid or its derivative and having a number-average molecular weight of 20,000 or lower.
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公开(公告)号：JPH05320483A
公开(公告)日：1993-12-03
申请号：JP12638092
申请日：1992-05-19
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA SEIICHI , GOTO NORIAKI , INOUE SHUNEI
Abstract: PURPOSE:To obtain a resin composition improved in mechanical properties by adding a specified amount of a combination of potassium titanate fibers with talc to a liquid crystal polyester comprising a number of specified structural units and having a specified liquid crystal initiation temperature. CONSTITUTION:A mixture comprising p-hydroxybenzoic acid, 4,4'- dihydroxybiphenyl, terephthalic acid, polyethylene terephthalate, etc., in a specified ratio is polycondensed to obtain a liquid crystal polyester comprising structural units of formulas I-IV (wherein R1 is a group of formula V, a group of formula VI or the like; and R2 is a group of formula V, a group of formula VII or the like), having a liquid crystal initiation temperature of 330 deg.C or below and represented by formula VIII (wherein k/l/m/n=80/7.5/12.5/20). 5-30 pts.wt. mixture of whiskers of potassium titanate such as K2Ti6O13 of a pH of 6-8 with talc of a mean particle diameter of 2.0-6.0mum in a weight ratio of 30/70 to 95/5 is added to 100 pts.wt. this polyester to obtain the objective composition having a melt viscosity of 15-80Pa.sec and excellent mechanical properties.
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公开(公告)号：JPH05239325A
公开(公告)日：1993-09-17
申请号：JP4365892
申请日：1992-02-28
Applicant: TORAY INDUSTRIES
Inventor： AKIYAMA FUMIO , INOUE SHUNEI
IPC: C08L67/02 , C08L67/00 , C08L101/00
Abstract: PURPOSE:To provide the subject resin composition exhibiting a high elastic modulus, a high impact resistance and a low anisotropy. CONSTITUTION:The objective thermoplastic resin composition is characteristically obtained by melt blending (D) 0.1 to 20 pts.wt. polyester elastomer with 100 pts.wt. resin composition composed of (A) 98 to 10wt.% crystalline thermoplastic polyester resin, (B) 1 to 45wt.% liquid crystalline polyester resin forming an anisotropic fused phase and (C) 1 to 45wt.% noncrystalline resin.
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公开(公告)号：JPH05156135A
公开(公告)日：1993-06-22
申请号：JP30192091
申请日：1991-11-18
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI
IPC: C08L59/00 , C08L67/00 , C08L67/03 , C08L69/00 , C08L71/12 , C08L77/00 , C08L81/00 , C08L81/02 , C08L81/06 , C08L101/00
Abstract: PURPOSE:To prepare the subject compsn. having a high elastic modulus, a high impact resistance, and a low anisotropy by compounding a thermotropic liq. crystalline polyester, a thermoplastic resin, and a polyester elastomer. CONSTITUTION:100 pts.wt. resin compsn. consisting of 1-99wt.% thermotropic liq. crystalline polyester and 99-1wt.% at least one thermoplastic resin selected from the group consisting of polyamide, polyoxymethylene, polycarbonate, polyarylene oxide, arom. polyester, polyarylene sulfide, polysulfone. polyethersulfone, and amorphous polyarylate is compounded with 1-100 pts. wt. polyester elastomer.
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Patent Agency Ranking
公开(公告)号：JPH04348185A
公开(公告)日：1992-12-03
申请号：JP12055691
申请日：1991-05-27
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , YAMANAKA TORU , ICHIKAWA YASUNORI
Abstract: PURPOSE:To obtain the subject composition having small mechanical anisotropy such as dimensional accuracy by adding specific amounts of a specific epoxy compound and a filler to a thermotropic liquid crystal polyester. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts.wt. of a thermotropic liquid crystal polyester composed of the units selected from aromatic oxycarbonyl unit, aromatic dioxy unit, aromatic dicarbonyl unit, ethylenedioxy unit, etc., with (B) 0.01-20 pts.wt. (especially preferably 0.1-10 pts.wt.) of an epoxy compound of formula and (C) 0-200 pts.wt. (preferably 10-150 pts.wt.) of a filler such as glass fiber, wollastonite and alumina.
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公开(公告)号：JPH04318058A
公开(公告)日：1992-11-09
申请号：JP8534791
申请日：1991-04-17
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , OKAMOTO MASARU , KITAJIMA NORIO
Abstract: PURPOSE:To obtain a liquid crystal polyester resin composition useful for electric and electronic parts, etc., having excellent heat resistance and hydrolysis resistance by blending a liquid crystal polyester to form an anisotropic melt phase with a phosphine compound of a specific structure. CONSTITUTION:(A) 100 pts.wt. liquid crystal polyester to form an anisotropic melt phase, preferably a liquid crystal polyester comprising structural units shown by formula I, formula II, formula III and formula IV (R1 is one or more groups selected from groups shown by formula V, formula VI, etc.; R2 is group selected from groups shown by formula VII, formula VIII, etc.) in molar ratios of formula I + formula II/formula I + formula II + formula III of 60-95mol%, formula III/formula I + formula II + formula III of 40-5mol%, molar ratio of formula I/formula III of 75/25 to 95/5 and formula VI/formula II + formula III of equimolar ratio is blended with (B) 0.001-5 pts.wt., 2,2'-methylenebis(4,6-di-t- butylphenyl)octyl phosphite shown by formula IX, preferably
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公开(公告)号：JPH04292651A
公开(公告)日：1992-10-16
申请号：JP5733191
申请日：1991-03-20
Applicant: TORAY INDUSTRIES
Inventor： YAMANAKA TORU , OKAMOTO MASARU , INOUE SHUNEI
Abstract: PURPOSE:To provide a liquid crystal polyester resin composition having excellent heat resistance, moldability and mechanical characteristics and especially having improved welded part strength and improved anisotropy of the mechanical characteristics by adding glass fibers having an average fiber diameter of a specific range. CONSTITUTION:A liquid crystalline polyester resin composition obtained by melting and kneading (A) 100 pts.wt. of a liquid crystalline polyester resin comprising structural units of formulas I-IV (R1 is group of formula V, VI, etc.; R2 is group of formula VII, VIII, etc.; X is H, Cl), (the units of formulas I+II) being 60-95% based on (the units of formulas I+II+III), the units of formula III being 40-5mol.% of (the units of formulas I+II+III), the molar ratio of formula I/II being 75/25 to 95/5, and the intrinsic viscosity of the resin being 1-3dl/g, with (B) 5-200 pts.wt. of glass fibers having an average fiber diameter of 3-15mum, with a twin screw extruder at a temperature between the melting point of the component A and the melting point +
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公开(公告)号：JPH04248898A
公开(公告)日：1992-09-04
申请号：JP740691
申请日：1991-01-25
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , NAKAMURA SEIICHI , INOUE SHUNEI
Abstract: PURPOSE:To obtain the subject composition having excellent heat resistance moldability and mechanical properties and giving a molded article having excellent abrasion resistance, etc., by adding a specific amount of rock wool to a liquid crystal polyester (amide) forming an anisotropic molten phase. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts.wt. of a liquid-phase polyester and/or a liquid-phase polyester amide forming an anisotropic molten phase and composed of the structural units of preferably formula I, formula II and formula IV or formula I, formula II, formula III and formula IV [R1 is group of formula V to XII; R2 is group of formula VII, formula XIII, formula V, formula X or formula XIV (X is H or Cl); the amount of the structural units of formula II + formula III is equimolar to the unit of formula IV] with (B) 2-200 pts.wt. of rock wool fiber.
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公开(公告)号：JPH04225021A
公开(公告)日：1992-08-14
申请号：JP40850290
申请日：1990-12-27
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , YAMANAKA TORU , INOUE SHUNEI
Abstract: PURPOSE:To obtain the subject polymer having excellent color tone and high heat-resistance by melting and polymerizing terephthalic acid, p-hydroxybenzoic acid, 4,4'-dihydroxy-biphenyl and other glycol component and carrying out solid- phase polymerization of the polymer under specific condition. CONSTITUTION:The objective liquid crystal polyester having a logarithmic viscosity of 1.5-4.5dl/g (measured in pentafluorophenol at a concentration of 0.1g/dl at 60 deg.C) and composed of the structural units of formula I, formula II (R1 is biphenylene, phenylene, etc.), formula III and formula IV (R2 is phenylene, biphenylene, etc.) can be produced by mixing p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl, acetic anhydride and polyethylene terephthalate, reacting at 130-250 deg.C for 5hr in nitrogen gas atmosphere, subjecting to deacetylation polymerization reaction at the ultimate vacuum degree of
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