公开(公告)号：JPH0885762A

公开(公告)日：1996-04-02

申请号：JP22230594

申请日：1994-09-19

Applicant: TORAY INDUSTRIES

Inventor： AKIYAMA FUMIO ,  TANAKA YOSHINORI ,  INOUE SHUNEI

IPC: C08L67/00 ,  C08L101/00 ,  C08L101/02 ,  C08L101/12

Abstract: PURPOSE: To obtain a thermoplastic resin composition excellent in mechanical properties and weld strength. CONSTITUTION: This resin composition comprises 99-1wt.% at least one non- liquid-crystal resin and 1-99wt.% liquid crystal resin comprising units represented by the formulas X-Y-SO3 M and X-Y-COOM (wherein X is O and/or CO; Y is a bivalent organic group; and M is an alkali metal) and forming an anisotropic molten phase.

公开(公告)号：JPH06192405A

公开(公告)日：1994-07-12

申请号：JP34462692

申请日：1992-12-24

Applicant: TORAY INDUSTRIES

Inventor： KUREMATSU TOSHIO ,  AKIYAMA FUMIO ,  INOUE SHUNEI

IPC: C08G63/60

Abstract: PURPOSE:To provide a copolyester having an optical anisotropy and improved melt flowability, heat resistance, and mechanical properties by specifying the m.p. and logarithmic viscosity of the copolyester. CONSTITUTION:p-Hydroxybenzoic acid (A), ethylene glycol (B), and an arom. dicarboxylic acid (C) are copolymerized in a molar ratio of component A to components A and B of 60-95%, thus giving a copolyester which comprises structural units of formulae I, II, and III (wherein R1 represents at least one member selected from groups of formulae IV to IX; X is H or Cl; and the amt. of units of formula II is equimolar to that of formula III) and which has an m.p. (Tm, deg.C) satisfying formula X [wherein x is the ratio (mol%) of formula II to formulae I and II], a logarithmic viscosity in the melting range of 30 deg.C or narrower (measured by differential calorimetry) of 0.4-3.0dl/g, and a difference between the flowing start temp. and the melting completion temp. (obtd. from the temp. dependence curve of the complex viscosity) of 25 deg.C or lower.

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.

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.

公开(公告)号：JPH0586266A

公开(公告)日：1993-04-06

申请号：JP5385392

申请日：1992-03-12

Applicant: TORAY INDUSTRIES

Inventor： AKIYAMA FUMIO ,  WATANABE AKIHIKO ,  YAMANAKA TORU

IPC: C08L67/00 ,  C08K5/15 ,  C08K5/1515 ,  C08L69/00 ,  C08L71/08 ,  C08L71/10 ,  C08L81/02

Abstract: PURPOSE:To obtain the subject composition useful for parts of electric and electronic devices, etc., having excellent fluidity and mechanical properties by blending a resin composition comprising a liquid crystal polyester resin forming an anisotropic melt phase, etc., with a specific amount of a specific epoxy compound. CONSTITUTION:(A) 100 pts.wt. resin composition comprising (i) 1-99wt.% & liquid crystal polyester resin forming an anisotropic melt phase and (ii) 99-1wt.% one or more thermoplastic resins selected from polyester, PC, polyarylene oxide and polyarylene sulfide is blended with (B) 0.01-20 pts.wt. (preferably 0.1-10 pts.wt.) epoxy compound containing no plural glycidyl ester groups in the molecule to give the objective composition.

公开(公告)号：JPH0973667A

公开(公告)日：1997-03-18

申请号：JP25454495

申请日：1995-09-05

Applicant: TORAY INDUSTRIES

Inventor： AKIYAMA FUMIO ,  NAGAI SATOSHI ,  NAKANISHI TOSHIHARU

IPC: G11B7/26

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an optical recording medium by which unevenness in the characteristics of continuously produced optical recording media is reduced and productivity is enhanced. SOLUTION: When optical recording media each having plural thin film layers on the substrate are continuously produced, at least 1st and 2nd thin film layers are formed on a substrate, then the spectral reflectance of the substrate is measured and the thickness of at least a 2nd thin film layer on a subsequent substrate is controlled on the basis of the measured spectral reflectance.

公开(公告)号：JPH07233329A

公开(公告)日：1995-09-05

申请号：JP32111594

申请日：1994-12-26

Applicant: TORAY INDUSTRIES

Inventor： AKIYAMA FUMIO ,  INOUE SHUNEI

IPC: C08J5/00 ,  B29C47/00 ,  C08G59/40 ,  C08G63/60 ,  C08L63/00 ,  C08L67/00 ,  C08L67/04 ,  C08L77/00 ,  C08L101/00

Abstract: PURPOSE:To obtain a tubular liquid crystal polymer composition having excellent mechanical properties and toughness owing to the highly oriented and dispersed liquid crystal resin by compounding a liquid crystal resin forming an anisotropic molten phase with a specific thermoplastic resin and extrusion-molding the mixture in tubular form. CONSTITUTION:This tubular liquid crystal polymer composition is produced by compounding (A) l-50wt.% of a liquid crystal resin forming an anisotropic molten phase [preferably a liquid crystal polyester composed of the units of formula I to formula IV (R1 is group of formula V, VI, etc.; R2 is group of formula VI, VII, etc.) or composed of the units of formulas I, II and IV] with (B) 99-50wt.% of a thermoplastic resin melt-moldable at a temperature below the liquid crystal developing temperature of the component A (preferably a polybutylene terephthalate having a logarithmic viscosity of 0.92-1.25) and extrusion-molding the obtained mixture in tubular form. The composition contains the component A dispersed in the matrix phase of the component B in the form of dispersed particles having an average aspect rat: of >=10. Preferably, the outer diameter of the orifice of the tubular die to be used in the extrusion molding is

公开(公告)号：JPH07224208A

公开(公告)日：1995-08-22

申请号：JP31379994

申请日：1994-12-16

Applicant: TORAY INDUSTRIES

Inventor： GOTO NORIAKI ,  AKIYAMA FUMIO ,  ISHIO ATSUSHI

IPC: C08K3/00 ,  C08L67/00 ,  C08L81/02

Abstract: PURPOSE:To provide a polyphenylene sulfide resin composition reduced in the burr formation and improved in weld strength by mixing a specified polyphenylene sulfide resin with a specified liquid crystal polymer, a specified epoxy compound and a filler. CONSTITUTION:100 pts.wt. resin composition comprising 95-5wt.% polyphenylene sulfide resin having a number-average molecular weight of 7000-15000 (gel permeation chromatography using a 1-chloronaphthalene solvent), having no cross- linkage and containing 70mol% or above repeating units of formula I and 5-95wt.% liquid crystal polymer capable of forming an anisotropic melt phase when melted is mixed with 0.1-5 pts.wt. at least one epoxy compound selected from between the compounds of formulas II and III (wherein R1 is -OG, a group of formula IV or a group of formula V; R2 is -COOG or R1; and G is a group of formula VI) and 0-400 pts.wt. filler, and the resulting mixture is melt-kneaded at 280-380 deg.C.

公开(公告)号：JPH06220335A

公开(公告)日：1994-08-09

申请号：JP28847593

申请日：1993-11-17

Applicant: TORAY INDUSTRIES

Inventor： AKIYAMA FUMIO ,  INOUE SHUNEI

IPC: B29C45/00 ,  B29C47/00 ,  C08G63/60 ,  C08L67/00 ,  C08L101/00

Abstract: PURPOSE:To obtain the subject molded product of low linear expansion coefficient, excellent in mechanical properties and heat resistance, useful for electrical and electronic parts, etc., by e.g. injection molding, under specified conditions, of a blend of a thermoplastic resin with a liquid crystalline resin capable of forming anisotropic molten phase at specified proportion. CONSTITUTION:In a blend of (A) 99-50wt.% of a thermoplastic resin such as polyester and (B) 1-50wt.% of a liquid crystalline resin capable of forming anisotropic molten phase (e.g. a copolymer of p-hydroxybenzoic acid and polyethylene terephthalate), the blending ratio of the components A to B is so defined that the shear rate-dependent curve for the melt viscosity of the component B at a molding temperature ensured to cross over such curve for the component A determined at the same temperature within the range of a shear rate of 10-2000/sec, and such a blend is kneaded in a molten state at a temperature not lower than the liquid crystal initiation temperature for the component B and put to injection molding or extrusion at a temperature not lower than the liquid crystal initiation temperature, thus obtaining the objective molded product.

公开(公告)号：JPH06192406A

公开(公告)日：1994-07-12

申请号：JP34462792

申请日：1992-12-24

Applicant: TORAY INDUSTRIES

Inventor： KUREMATSU TOSHIO ,  AKIYAMA FUMIO ,  INOUE SHUNEI

IPC: C08G63/60

Abstract: PURPOSE:To provide a liq. crystalline polyester which is produced by melt polymn. alone and has an optical anisotropy and improved flowability, melt spinnability, and mechanical properties by specifying the m.p. and logarithmic viscosity of the polyester. CONSTITUTION:p-Hydroxybenzoic acid (A), and arom. dihydroxy compd. (B), ethylene glycol (C), and an arom. dicarboxylic acid (D) are copolymerized in molar ratios of (A+B)/(A+B+C), C/(A+B+C), and A/B of 60-95%, 40-5%, and (78:22)-(93:7), respectively, thus giving a liq. crystalline polyester which comprises structural units of formulae I to IV (wherein R1 represents at least one member selected from groups expressed by formulae V; R2 represents at least one member selected from groups expressed by formulae VI; X is H or Cl; and the total amt. of units of formulae II and III is equimolar to that of formula IV) and which has an m.p. (Tm, deg.C) satisfying formula VII, a logarithmic viscosity in the melting range of 30 deg.C or narrower (measured by differential calorimetry) of 1.0-3.0dl/g, and a difference between the flowing start temp. and the melting completion temp. (obtd. from the temp. dependence curve of the complex viscosity) of 25 deg.C or lower.