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公开(公告)号：DE69329257D1
公开(公告)日：2000-09-28
申请号：DE69329257
申请日：1993-04-07
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA KIYOKAZU , GOTO NORIAKI , INOUE TOSHIHIDE
Abstract: A liquid crystal polymer composition comprises (A) 100 parts by weight of a liquid crystal polyester and/or liquid crystal polyesteramide capable of forming an anisotropic melt and (B) a liquid crystal polymer composition containing 5 to 300 parts by weight of a potassium titanate whisker having a pH of 6 to 8, wherein, the melt viscosity of the composition is 12 to 300 Pa.sec, and the weight average fiber length of the potassium titanate whisker in the composition is at least 4.5 mu m.
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公开(公告)号：DE69322735T2
公开(公告)日：1999-05-06
申请号：DE69322735
申请日：1993-10-22
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA KIYOKAZU , GOTO NORIAKI , INOUE TOSHIHIDE
Abstract: A thermotropic resin composition containing (A) 100 parts by weight of a thermotropic polyester, a thermotropic polyesteramide or a mixture thereof, forming an anisotropic molten phase and (B) 1 to 200 parts by weight of a graphite having a fixed carbon content of 98% or more, a crystallinity of 80 to 95%, and an average particle size of 1 to 200 mu m.
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公开(公告)号：DE69329257T2
公开(公告)日：2000-12-28
申请号：DE69329257
申请日：1993-04-07
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA KIYOKAZU , GOTO NORIAKI , INOUE TOSHIHIDE
Abstract: A liquid crystal polymer composition comprises (A) 100 parts by weight of a liquid crystal polyester and/or liquid crystal polyesteramide capable of forming an anisotropic melt and (B) a liquid crystal polymer composition containing 5 to 300 parts by weight of a potassium titanate whisker having a pH of 6 to 8, wherein, the melt viscosity of the composition is 12 to 300 Pa.sec, and the weight average fiber length of the potassium titanate whisker in the composition is at least 4.5 mu m.
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公开(公告)号：DE69322735D1
公开(公告)日：1999-02-04
申请号：DE69322735
申请日：1993-10-22
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA KIYOKAZU , GOTO NORIAKI , INOUE TOSHIHIDE
Abstract: A thermotropic resin composition containing (A) 100 parts by weight of a thermotropic polyester, a thermotropic polyesteramide or a mixture thereof, forming an anisotropic molten phase and (B) 1 to 200 parts by weight of a graphite having a fixed carbon content of 98% or more, a crystallinity of 80 to 95%, and an average particle size of 1 to 200 mu m.
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公开(公告)号：JPH07292261A
公开(公告)日：1995-11-07
申请号：JP9221994
申请日：1994-04-28
Applicant: TORAY INDUSTRIES
Inventor： AKIYAMA FUMIO , GOTO NORIAKI , INOUE SHUNEI
Abstract: PURPOSE:To obtain the subject product excellent in mechanical properties and heat resistance. CONSTITUTION:This product is made by molding a liquid crystal resin composition comprising a liquid crystal resin (A) capable of forming an anisotropic molten phase, a thermoplastic resin (B) and/or an inorganic filler (C), wherein the amount of A used is 100-1 pt.wt., that of B is O-99 pts.wt., that of C used is 0-200 pts.wt. per 100 pts.wt. total of A and B, and B and C are used as the essential components by a molding process comprising spreading the melt under pressure with a press while injecting it.
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Patent Agency Ranking
公开(公告)号：JPH07166057A
公开(公告)日：1995-06-27
申请号：JP31711593
申请日：1993-12-16
Applicant: TORAY INDUSTRIES
Inventor： ISHIO ATSUSHI , GOTO NORIAKI , KOBAYASHI KAZUHIKO
Abstract: PURPOSE:To obtain a resin compsn. which is reduced in molding burr, excellent in mechanical strengths and flowability, and useful esp. for an injection molded small precision part. CONSTITUTION:A resin compsn. is obtd. by melt mixing 100 pts.wt. resin mixture comprising 95-30wt.% polyphenylene sulfide resin mixture and 5-70wt.% thermotropic liq. -crystal resin with 20-250 pts.wt. at least one filler selected from fibrous and nonfibrous fillers. The polyphenylene sulfide resin mixture comprises 90-30wt.% cross-linked polyphenylene sulfide resin having a number- average mol.wt. of 7,000-15,000, a total ash content of 0.3wt.% or lower, and a ratio of the melt flow rate at a 15-min dwelling to that at a 5-min dwelling of 50-95% and 10-70wt.% virtually non-cross-linked polyphenylene sulfide resin having a number-average mol.wt. of 3,000-6,000.
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公开(公告)号：JPH0718162A
公开(公告)日：1995-01-20
申请号：JP16350093
申请日：1993-07-01
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA SEIICHI , GOTO NORIAKI , INOUE SHUNEI
Abstract: PURPOSE:To obtain the subject composition which is useful as an engineering plastic because of its excellent heat resistance, fluidity, mechanical properties, dimensional accuracy, particularly reduced molding flash, lowered warpage and impact resistance. CONSTITUTION:100 pts.wt. of a liquid-crystalline polyester and/or liquid- crystalline polyester amide both capable of forming anisotropic melt phase are combined with 1 to 300 pts.wt. of a graphite of more than 98% fixed carbon content, 80 to 95% crystallinity and 20 to 2,000mum average particle size to give the objective liquid-crystalline resin composition.
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公开(公告)号：JPH05214217A
公开(公告)日：1993-08-24
申请号：JP2012392
申请日：1992-02-05
Applicant: TORAY INDUSTRIES
Inventor： NAKAMURA SEIICHI , GOTO NORIAKI , INOUE SHUNEI
Abstract: PURPOSE:To improve the weld strength, resistance to hydrolysis and abrasion, etc., of a liq.-crystalline polyester(amide) capable of forming an anisotropic melt phase by compounding it with an anhydrous calcium sulfate whisker. CONSTITUTION:100 pts.wt. liq.-crystalline polyester comprising structural units of formulas I, II, III, and IV (wherein R1 is a group of formula V, etc.; and R2 is a group of formula VI, etc.) and capable of forming an anisotropic melt phase and/or liq.-crystalline polyesteramide is compounded with 2-200 pts.wt. anhydrous calcium sulfate whisker to give the title compsn., which is suitable for electric and electronic parts, etc. The liq.-crystalline polymer may be free from the unit of formula III, contains the sum of the units of formulas II and III in the same molar amt. as that of the units of formula IV, and is prepd., e.g. by polycondensing p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl, ethylene glycol, and terephthalic acid.
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公开(公告)号：JPH0446986B2
公开(公告)日：1992-07-31
申请号：JP5459087
申请日：1987-03-10
Applicant: TORAY INDUSTRIES
Inventor： GOTO NORIAKI , YOKOIKAWA TAKUMI , IWAMOTO MASAAKI
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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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