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公开(公告)号：DE69030281T2
公开(公告)日：1997-08-21
申请号：DE69030281
申请日：1990-05-15
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , ICHIKAWA YASUNORI , INOUE TOSHIHIDE , YAMANAKA TORU
IPC: C08K3/00 , C08G63/60 , C08K5/02 , C08K5/3417 , C08K5/56 , C08L3/00 , C08L25/18 , C08L63/00 , C08L67/00 , C08L67/03 , C08L69/00 , C08L71/12 , C08L85/02 , C09K19/42 , C08K7/14
Abstract: Disclosed is a flame-retardant liquid crystal polyester composition, which comprises (A) 100 wt. parts of a liquid crystal polyester comprising structural units of the following formulae (I), (II), (III) and (IV), in which the amount of units (I) and (II) is 77 to 95 mole% based on the sum of units (I), (II) and (III), the amount of units (III) is 23 to 5 mole% based on the sum of units (I), (II) and (III), and the units (I)/units (II) molar ratio is 75/25 - 95/5 and (B) 0.5 to 30 wt. parts of a polymeric flame retardant having an average dispersed particle diameter not larger than 2.5 mu m: &lparstr& O-R1-O &rparstr& (II), &lparstr& OCH2CH2-O &rparstr& (III), and &lparstr& CO-R2-CO &rparstr& (IV) wherein R1 and R2 are specific aromatic residues. This composition gives a molded article having a superior flame retardancy, heat resistance, mechanical properties, and appearance.
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公开(公告)号：DE69122433D1
公开(公告)日：1996-11-07
申请号：DE69122433
申请日：1991-06-21
Applicant: TORAY INDUSTRIES
Inventor： INOUE TOSHIHIDE , ICHIKAWA YASUNORI , OKAMOTO MASARU , KITAJIMA NORIO
Abstract: A flame-retardant thermotropic polyester composition comprises 100 parts by weight of thermotropic polyester (A) and 0.5 to 60 parts by weight of poly(bromostyrene) (B) having the following structural units produced from bromostyrene monomer, as the principal structural component thereof, and having a number average molecular weight of 1 x 10 to 30 x 10 ; has excellent flame retardancy, mechanical properties and heat resistance, and the shaped articles molded from the composition has also superior appearance.
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公开(公告)号：DE69122433T2
公开(公告)日：1997-02-13
申请号：DE69122433
申请日：1991-06-21
Applicant: TORAY INDUSTRIES
Inventor： INOUE TOSHIHIDE , ICHIKAWA YASUNORI , OKAMOTO MASARU , KITAJIMA NORIO
Abstract: A flame-retardant thermotropic polyester composition comprises 100 parts by weight of thermotropic polyester (A) and 0.5 to 60 parts by weight of poly(bromostyrene) (B) having the following structural units produced from bromostyrene monomer, as the principal structural component thereof, and having a number average molecular weight of 1 x 10 to 30 x 10 ; has excellent flame retardancy, mechanical properties and heat resistance, and the shaped articles molded from the composition has also superior appearance.
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公开(公告)号：DE69030281D1
公开(公告)日：1997-04-30
申请号：DE69030281
申请日：1990-05-15
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , ICHIKAWA YASUNORI , INOUE TOSHIHIDE , YAMANAKA TORU
IPC: C08K3/00 , C08G63/60 , C08K5/02 , C08K5/3417 , C08K5/56 , C08L3/00 , C08L25/18 , C08L63/00 , C08L67/00 , C08L67/03 , C08L69/00 , C08L71/12 , C08L85/02 , C09K19/42 , C08K7/14
Abstract: Disclosed is a flame-retardant liquid crystal polyester composition, which comprises (A) 100 wt. parts of a liquid crystal polyester comprising structural units of the following formulae (I), (II), (III) and (IV), in which the amount of units (I) and (II) is 77 to 95 mole% based on the sum of units (I), (II) and (III), the amount of units (III) is 23 to 5 mole% based on the sum of units (I), (II) and (III), and the units (I)/units (II) molar ratio is 75/25 - 95/5 and (B) 0.5 to 30 wt. parts of a polymeric flame retardant having an average dispersed particle diameter not larger than 2.5 mu m: &lparstr& O-R1-O &rparstr& (II), &lparstr& OCH2CH2-O &rparstr& (III), and &lparstr& CO-R2-CO &rparstr& (IV) wherein R1 and R2 are specific aromatic residues. This composition gives a molded article having a superior flame retardancy, heat resistance, mechanical properties, and appearance.
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公开(公告)号：JPH10182839A
公开(公告)日：1998-07-07
申请号：JP34490296
申请日：1996-12-25
Applicant: TORAY INDUSTRIES
Inventor： KUREMATSU TOSHIO , ICHIKAWA YASUNORI , SUEYOSHI TADAHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain pellets of a liquid crystal resin containing a liquid crystal polymer, reduced in a dispersion of metering in feeding into a molding machine and showing excellent feedability by specifying the relationship between the average weight of pellets and the standard deviation of their weights. SOLUTION: The liquid crystal polymer used is exemplified by a liquid crystal polyester, a liquid crystal polyester-amide or a liquid crystal polyester carbonate and is desirably a liquid crystal polymer containing structural units comprising p-hydroxybenzoic acid, a liquid crystal polymer containing ethylenedioxy units, and a polyester comprising structural units derived from e.g. p- hydroxybenzoic acid. The pellets should satisfy the relationship: σ/W
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Patent Agency Ranking
公开(公告)号：JPH10180753A
公开(公告)日：1998-07-07
申请号：JP34490396
申请日：1996-12-25
Applicant: TORAY INDUSTRIES
Inventor： KUREMATSU TOSHIO , ICHIKAWA YASUNORI , SUEYOSHI TADAHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain liquid crystal resin pellets, which have such shape that improved feed performance and volumetric characteristics can be provided, at high yield. SOLUTION: In a manufacture of pellets, in which liquid crystal resin in a molten state is delivered, in the form of string, into a trough in which cooling water fed from a nozzle flows, cooled, solidified, and cut in the presence of cooling water, the trough is inclined with respect to the horizontal line at an angle larger than 0 degree and not exceeding 30 degrees and the trough is set so that the height of the trough near the delivery point of the resin is made larger than the height of the trough near a cutter.
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公开(公告)号：JP2505590B2
公开(公告)日：1996-06-12
申请号：JP21780789
申请日：1989-08-24
Applicant: TORAY INDUSTRIES
Inventor： OKAMOTO MASARU , ICHIKAWA YASUNORI , INOE SHUNEI , YAMANAKA TOORU
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公开(公告)号：JPH0476049A
公开(公告)日：1992-03-10
申请号：JP18951490
申请日：1990-07-19
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , OKAMOTO MASARU , INOUE SHUNEI
Abstract: PURPOSE:To improve heat resistance, moldability, mechanical properties, and, particularly, impact resistance by compounding a liq. crystalline polyester resin comprising specific structural units with talc and a glass fiber. CONSTITUTION:100 pts.wt. melt-moldable liq. crystalline polyester resin consisting of structural units represented by formulas I, II, III, and IV is compounded with 10-150 pts.wt. talc having a mean particle diameter of 2.5-3.5mum and 10-150 pts.wt. glass fiber having a mean fiber diameter of 3-9mum. In formulas III and IV, represents at least one group selected from the group consisting of a group of formula V, etc., ; and Y, at least one group selected from the group consisting of a group of formula VI, etc. The sum of molar amts. of units II and III is substantially the same as the molar amt. of unit IV.
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公开(公告)号：JPH03281566A
公开(公告)日：1991-12-12
申请号：JP85490
申请日：1990-01-05
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , OKAMOTO MASARU , ICHIKAWA YASUNORI
Abstract: PURPOSE:To prepare the subject composition having excellent flame retardance, heat-resistance, mechanical properties, etc., by preparing a highly flame retardant-containing composition from a liquid-crystalline polyester and the polymeric flame-retardant and subsequently melt-blending the composition with the liquid-crystalline polyester. CONSTITUTION:A liquid-crystalline polyester containing ethylenedioxy units as an essential component and having a melting viscosity of 10-15000 poises is melt-blended with a polymeric flame-retardant (e.g. brominated polycarbonate or brominated epoxy compound) in a weight ratio of 9/1-4/6, and the prepared composition containing the polymeric flame-retardant in a high concentration is melt-blended with the liquid crystalline polyester in a weight ratio of (0.2-30)/100 to provide the objective composition.
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公开(公告)号：JPH03183016A
公开(公告)日：1991-08-09
申请号：JP32337889
申请日：1989-12-12
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , INOUE SHUNEI , YAMANAKA TORU
Abstract: PURPOSE:To obtain the disk substrate having excellent formability, dimensional accuracy and mechanical characteristics by forming the above substrate of liquid-crystalline polyester which consists of respectively specified four constitutional units, is specified in the molar ratio between the respective constitutional units and can be melt-molded. CONSTITUTION:The liquid-crystalline polyester disk substrate consists of the liquid-crystalline polyester compsn. formed by incorporating
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