公开(公告)号：JPH03205449A

公开(公告)日：1991-09-06

申请号：JP85590

申请日：1990-01-05

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI ,  OKAMOTO MASARU ,  ICHIKAWA YASUNORI

IPC: C08K7/14 ,  C08L67/00 ,  C08L67/03

Abstract: PURPOSE:To obtain the title compsn. giving a molded article excellent in the flame retardance, heat resistance, mechanical properties, and appearance by melt mixing a liq. crystal polyester, a high-molecular flame retardant, and a filler in a specified ratio under specific conditions. CONSTITUTION:In producing the title compsn. comprising 100 pts.wt. liq. crystal polyester (e.g. a compd. of the formula wherein k/l/m/n=75/10/15/25), 0.2-30 pts.wt. high-molecular weight flame retardant (e.g. a brominated polystyrene), and 5-200 pts.wt. filler (e.g. a glass fiber), the polyester is melt mixed first with the retardant first and then with the filler, or vice versa.

公开(公告)号：JPH03183185A

公开(公告)日：1991-08-09

申请号：JP32337989

申请日：1989-12-12

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  YAMANAKA TORU

IPC: C08J5/18 ,  C08G63/60 ,  C08G63/66 ,  C08L67/03 ,  H05K1/03

Abstract: PURPOSE:To offer printed boards excellent in solder heat resistance and in molding workability by using a melt-moldable liquid crystal polyester having a specific structural unit. CONSTITUTION:Used is a melt-moldable liquid crystal polyester comprising structural units I, II, III and IV where structural unit I has a 40-90mol% of [I+II+III] and structural units II/III have mol ratios 9/1-1/9. Preferably the structural unit I is a polyester prepared from p-hydroxy benzoic acid; structural unit II is a structural unit consisting of 4,4'-dihydroxybiphenyl; structural unit III is 2,6-dihydroxynaphthalene; and structural unit IV is terephthalic acid. In the case of loading a liquid crystal polyester with filler, preferable loading is 200wt% or less to the liquid crystal polyester 100wt%, particularly, 15-100wt%.

公开(公告)号：JPH032261A

公开(公告)日：1991-01-08

申请号：JP13622489

申请日：1989-05-31

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI

IPC: C08K5/29 ,  C08G59/00 ,  C08K5/15 ,  C08K5/1515 ,  C08L63/00 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To provide a liquid crystal polyester resin composition having excellent hydrolysis resistance and heat cycle resistance by adding an organic epoxy compound and a carbodiimide compound to a liquid crystal polyester comprising specific structural units. CONSTITUTION:A liquid crystal polyester resin composition comprises (A) 100 pts.wt. of an anisotropic melt phase-forming liquid crystal polyester having a thermal deformation temperature of >=150 deg.C and comprising structural units of formulas I, II and III [R1 is a group of formula IV, V, VI, etc.; R2, R3 are a group of formula IV, V, VII (X is H or Cl), etc.], the sum of the groups of formulas I and II being 75-95mol%, the amount of the group of formula III being 25-5mol% based on the total amount of the composition and the molar ratio of the group of formula I to the group of formula II being 75/25-95/5, (B) 0.005-10 pts.wt. of an organic epoxy compound, preferably a compound of formula VIII (Ar is 6-20C aromatic group or alicyclic group; n is 0-20), (C) 0.005-10 pts.wt. of a carbodiimide compound and preferably further (D) 0-200 pts.wt. of a filler.

公开(公告)号：JPS5618604A

公开(公告)日：1981-02-21

申请号：JP9317479

申请日：1979-07-24

Applicant: TORAY INDUSTRIES

Inventor： SATOU HIROSHI ,  ICHIKAWA YASUNORI ,  HIRAI TOSHIMASA

IPC: C08F6/00 ,  C08F6/14

Abstract: PURPOSE:To improve productivity, by coagulating a latex of a polymer plasticizable at 100-300 deg.C, dehydrating and drying the coagulated polymer by passing the polymer together with vinyl polymer pellets through a screw type squeezing dehydration dryer and continuously recovering the polymer in the molten state. CONSTITUTION:Into a coagulation tank 3 is introduced from a storage tank 1 a latex of a polymer which is hard at normal temperature and is plasticizable at 100- 300 deg.C, such as a vinyl polymer latex, a latex of a graft polymer prepared by grafting a vinyl monomer onto a rubbery polymer or a latex of these mixed polymers. A coagulant is introduced to the tank 3 from a storage tank 2. The coagulation is continuously fed to a filter 4. Then, the polymer cake is conveyed at a constant rate to a screw dehydrator 8. On the other hand, vinyl polymer pellets are fed from a hopper 5 through a metering feeder 6 to the dehydrator 8. The polymer dried in the dehydrator 8 is passed through a cooling bath 9 and cut and pelletized by a cutter 10. The volatile matters from the dehydrator 8 are sucked and exhausted via a vent receiving tank 11 by a vacuum pump 5.

公开(公告)号：JPH04298561A

公开(公告)日：1992-10-22

申请号：JP8532891

申请日：1991-04-17

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI ,  OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  KITAJIMA NORIO

IPC: C08K5/02 ,  C08K5/13 ,  C08K5/524 ,  C08L67/00 ,  C09K19/38

Abstract: PURPOSE:To obtain the title compsn. excellent in the resistance to falling of granules during burning by compounding a specific liq. crystalline polyester, an org. bromine compd., and a phenolic compd. and/or a phosphite compd. in a specified ratio. CONSTITUTION:The title compsn. comprises 100 pts.wt. liq. crystalline polyester consisting of structural units of formulas I to IV (wherein X is a group of formula V or formulas VI and VII or -CH2CH2-; and Y is at least one kind of group selected from aming those of formulas VII to X), 5-30 pts.wt. org. bromine compd. (e.g. tribrominated PS), and 0.001-5 pts.wt. phenolic compd. and/or phosphite compd. having a mol.wt. of 500 or higher and at least one arom. ring (e.g. a compd. of formula XI).

公开(公告)号：JPH03250022A

公开(公告)日：1991-11-07

申请号：JP33973190

申请日：1990-11-30

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA YASUNORI ,  INOUE SHUNEI

IPC: C08G63/60 ,  C08G63/78

Abstract: PURPOSE:To obtain a copolyester which can give a molding excellent in heat resistance and mechanical properties simply by melt polymerization by using 4,4'-dihydroxybiphenyl having an Na content of a specified small value as the 4,4'-dihydroxybiphenyl which forms a specified structural unit among the contained four kinds of structural units. CONSTITUTION:A process for producing a copolyester comprising structural units of formulas I, II, III and IV, wherein the 4,4'-dihydroxybiphenyl which forms the structural units of formula II has an Na content of 0.1-10ppm. Thus, a copolyester which can give a high polymer simply by melt polymerization and can give a molding excellent in heat resistance, mechanical properties and color tone can be obtained. In the above formulas, R1 is a group of formula V, VI, VII or VIII or the like; R2 is a group of formula V, IX, X or XI or the like; and X is H or Cl.

公开(公告)号：JPH03217450A

公开(公告)日：1991-09-25

申请号：JP1456890

申请日：1990-01-23

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  OKAMOTO MASARU

IPC: C08K7/14 ,  C08L67/00 ,  C08L67/03

Abstract: PURPOSE:To obtain the subject resin composition excellent in heat resistance, moldability and mechanical characteristics, especially high-temperature mechanical characteristics and having a low anisotropy by blending a specified amount of a glass fiber having a specified fiber diameter with a liquid crystalline polyester resin composed of specified structural units. CONSTITUTION:With (A) 100 pts. wt. melt-moldable liquid crystalline polyester resin composed of structural units represented by formulae I-IV [R1 is formulae V, VI, etc.; R2 is formulae V, VI, VII, etc.; X is H or Cl] and satisfying relations such that the structural unit I occupies 40-90mol% based on the total amount of structural units of the formulae I-III and that the molar ratio of (structural unit II/III) is (9/1)-(1/9), (B) 5-200 pts.wt., preferably 10-100 pts.wt. glass fiber having 3-9mum average fiber diameter and 30-10 mum fiber length is blended.

公开(公告)号：JPH03179051A

公开(公告)日：1991-08-05

申请号：JP12785490

申请日：1990-05-16

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  YAMANAKA TORU

IPC: C08K3/22 ,  C08K5/02 ,  C08K5/15 ,  C08K5/1515 ,  C08L23/26 ,  C08L59/00 ,  C08L67/00 ,  C08L69/00 ,  C08L71/12 ,  C08L77/00 ,  C08L81/00 ,  C08L81/02 ,  C08L81/06

Abstract: PURPOSE:To improve the heat resistance, flame retardance, appearance after molding, and electrical properties by compounding a specific resin compsn. with an org. bromine compd., an antimony compd., an epoxy compd., and a filler. CONSTITUTION:A resin compsn. is obtd. by compounding 1-10wt.% thermotropic liq. crystal polyester having a deflection temp. under load of 150-280 deg.C and comprising at least one unit selected from the group consisting of units of formulas I, II, and III, and IV or V, [wherein X is formula VI to X; carbonyl groups in formula V are attached to p- or m-position to each other and 60% or higher are at p-position; and the molar amt. of the unit of formula V is substantially equal to that of the sum of the units of formulas II, III, and IV] with 99-90wt.% thermoplastic resin selected from the group consisting of a polyamide, polyoxymethylene, polycarbonate, etc. Then, 100 pts.wt. resulting compsn. is compounded with 0.5-50 pts.wt. org. bromine compd., 0-30 pts.wt. antimony compd., 0.01-20 pts.wt. epoxy compd., and 0-200 pts.wt. filler to give the title compsn.

公开(公告)号：JPH0395255A

公开(公告)日：1991-04-19

申请号：JP23261489

申请日：1989-09-07

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  YAMANAKA TORU

IPC: C08K3/00 ,  C08K3/22 ,  C08K5/02 ,  C08L59/00 ,  C08L67/00 ,  C08L69/00 ,  C08L71/08 ,  C08L71/10 ,  C08L77/00 ,  C08L81/00 ,  C08L81/02 ,  C08L81/06

Abstract: PURPOSE:To obtain a flame-retardant resin composition excellent in mechanical properties, appearance of the molded product and heat resistance by mixing a composition comprising a specific thermotropic liquid crystal polyester and a thermoplastic resin with a filler, an organoboron compound and an antimony compound. CONSTITUTION:The title flame-retardant resin composition is obtained by mixing 100 pts.wt. composition, which comprises 1-99wt.% thermotropic liquid crystal polyester having structural units of formulae I, II and V and a structural unit selected from the group consisting of formulae III and IV (wherein X is 1,4- phenylene, t-butyl-1,4-phenylene, biphenylene or 2,6-naphthylene; CO groups of formula V are in the p- and m-positions relative to each other and the p- position amount to 65% or more) with the amount of structural unit V being equal to the amount of II+III+IV by mole and has a deflection temperature under load of 150-280 deg.C and 99-1wt.% thermoplastic resin such as polyamides, polyoxymethylenes, polycarbonates, polyallylene sulfides, polysulfones, polyethers, or ether ketones, with 0-200 pts. filler, 5-50 pts. organoboron compound, and 0-30 pts. antimony compound.

公开(公告)号：JPH0314863A

公开(公告)日：1991-01-23

申请号：JP7431290

申请日：1990-03-23

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI

IPC: C08L63/00 ,  C08G59/00 ,  C08K5/15 ,  C08K5/1515 ,  C08L67/00

Abstract: PURPOSE:To prepare a thermotropic liquid crystal polyester compsn. excellent in the heat resistance represented by the hydrolysis resistance and long-term aging properties by compounding an org. epoxy compd. into a thermotropic liquid crystal polyester comprising specific structural units. CONSTITUTION:0.01-10 pts.wt. org. epoxy compd. is compounded into 100 pts.wt. thermotropic liquid crystal polyester which forms an anisotropic molten phase having a heat distortion temp. of 150 deg.C or higher and comprises structural units of formulas I to IV in molar ratios of (I+II)/(I+II+III), III/(I+II+III), and I/II of 0.750.95, 0.25-0.05, and 75/25-95/5 respectively, wherein R1 is formula V; and R2 is formula VI. The org. epoxy compd. is not particularly limited.