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    AROMATIC POLYESTERS WITH GOOD HEAT RESISTANCE.
    4.
    发明公开
    AROMATIC POLYESTERS WITH GOOD HEAT RESISTANCE. 失效
    具有良好的耐热芳香族聚酯。

    公开(公告)号：EP0275324A4

    公开(公告)日：1990-03-21

    申请号：EP87904936

    申请日：1987-07-23

    Applicant: TORAY INDUSTRIES

    Inventor： OKAMOTO MASARU ,  INOUE TOSHIHIDE ,  KATAOKA SHIRO

    IPC: C08G63/60 ,  C08G63/68

    CPC classification number: C08G63/605

    Abstract: Polyesters capable of giving moldings having excellent flowability, heat resistance, and mechanical properties. The polyesters are prepared by copolymerizing a specific amount of a polyester comprising p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl or hydroquinone and terephthalic acid or both terephthalic acid and isophthalic acid with a specific amount of a specific dihydroxy compound such as t-butylhydroquinone, phenylhydroquinone or the like.

    AROMATIC POLYESTER OF GOOD HEAT RESISTANCE
    7.
    发明专利
    AROMATIC POLYESTER OF GOOD HEAT RESISTANCE 失效

    公开(公告)号：JPS63309520A

    公开(公告)日：1988-12-16

    申请号：JP14586587

    申请日：1987-06-11

    Applicant: TORAY INDUSTRIES

    Inventor： INOUE SHUNEI ,  SUZUE SHIGERU ,  KATAOKA SHIRO

    IPC: C08G63/60 ,  C09K19/38

    Abstract: PURPOSE:To obtain an aromatic polyester which can be melt-molded above a specified temperature and can give a molding excellent in flow, heat resistance and mechanical properties, containing four kinds of structural units each having carbonyl and phenylene groups at a specified molar ratio. CONSTITUTION:An aromatic polyester comprising structural units of formulas I-IV (wherein X is a group of formula V, VI or VII, the carbonyl groups of each structural unit are in the para or meta position with each other and at least 65% of them are in the para position), wherein the units of formula I are present in an amount of 60-90mol.%, and the units (formula II + formula III + formula IV) are present in an amount of 40-10mol.%, based on the total, the molar ratio of formula II to formulas (III and IV) is 1/9-9/1, and the molar ratio of formula III to formula IV is 1/9-10/0, and the logarithmic viscosity as determined in a 0.1g/dl solution in pentafluorophenol at 60 deg.C is 1.0-20.0dl/g. This polyester can be melt-molded at 400 deg.C or above, and its molding has excellent flow and heat resistance so that it can be applied to various uses such as electric and electronic components.

    MELT-MOLDABLE WHOLLY AROMATIC POLYESTER
    8.
    发明专利
    MELT-MOLDABLE WHOLLY AROMATIC POLYESTER 失效

    公开(公告)号：JPS6339918A

    公开(公告)日：1988-02-20

    申请号：JP18337486

    申请日：1986-08-06

    Applicant: TORAY INDUSTRIES

    Inventor： OKAMOTO MASARU ,  INOUE SHUNEI ,  KATAOKA SHIRO

    IPC: C08G63/60 ,  C08L67/00

    Abstract: PURPOSE:To obtain a melt-moldable wholly aromatic polyester excellent in mechanical properties, heat resistance and flow, having structural units derived from p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl, terephthalic acid, isophthalic acid and hydroquinone. CONSTITUTION:This consists of structural units I-III of formulas I-III, wherein the unit I is present in an amount of 30-90mol%, based on the entire units, the unit II is present in an amount of 50-90mol%, based on the units II and III, the carbonyl groups of the units II and III are para or meta to each other and 65-80mol% of these carbonyl groups are in para positions. Said polyester has an inherent viscosity (as measured in pentafluorophenol in a 0.1g/dl concentration at 60 deg.C) of 0.5-15dl/g and can be melt-molded.

    POLYAMIDE RESIN COMPOSITION
    10.
    发明专利
    POLYAMIDE RESIN COMPOSITION 失效

    公开(公告)号：JPH0376756A

    公开(公告)日：1991-04-02

    申请号：JP21216089

    申请日：1989-08-17

    Applicant: TORAY INDUSTRIES

    Inventor： KATAOKA SHIRO ,  ONISHI KOJI ,  CHIBA KAZUMASA

    IPC: C08L77/00 ,  C08K3/32 ,  C08K5/3492 ,  C08L77/06

    Abstract: PURPOSE:To obtain a flame-retardant polyamide resin composition free from discoloration even when dried by heating and excellent in thermal stability, by mixing a specified polyamide resin with an inorganic compound and a flame retardant comprising a triazine compound. CONSTITUTION:A resin composition obtained by mixing 100 pts.wt. polyamide resin having a terminal amino group content of at least 9X10 mol/g of the polymer with 1-20 pts.wt. flame retardant comprising a triazine compound and 0.001-5 pts.wt. inorganic phosphorus compound. In order to obtain a flame- retardant resin having the advantage of the flame retardant used, it is desirable that the polyamide resin and a finely divided flame retardant are mixed in a Henschel mixer, etc., and then internally mixed with an extruder, etc. As the inorganic phosphorus compound, especially alkaline earth metal salts of hypophosphorous acid, such as sodium hypophosphite, calcium hypophosphite, and barium hypophosphite, are preferably used.

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