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    PURIFICATION OF ETHYLENE GLYCOL
    73.
    发明专利
    PURIFICATION OF ETHYLENE GLYCOL 失效

    公开(公告)号：JPH03200735A

    公开(公告)日：1991-09-02

    申请号：JP33833989

    申请日：1989-12-28

    Applicant: TORAY INDUSTRIES

    Inventor： ODAJIMA AKIO ,  KOBAYASHI YASUNOBU

    IPC: C07C29/76 ,  C07C31/20

    Abstract: PURPOSE:To purify ethylene glycol with completely removing oily component by filtering ethylene glycol containing oily component through a highly accurate filter having a filtering accuracy smaller than a specific value at a liquid temperature below a specific temperature. CONSTITUTION:Ethylene glycol containing oily component is purified by filtering through a filter having a filtering accuracy smaller than 20mmu (preferably

    PLASTIC OPTICAL FIBER
    75.
    发明专利
    PLASTIC OPTICAL FIBER 失效

    公开(公告)号：JPH0274907A

    公开(公告)日：1990-03-14

    申请号：JP23024388

    申请日：1988-09-09

    Applicant: TORAY INDUSTRIES

    Inventor： KOBAYASHI HISAAKI ,  MATSUNAGA TADAYOSHI ,  SUGANUMA HEIROKU ,  ODAJIMA AKIO

    IPC: G02B6/00 ,  C08L67/00 ,  C08L67/02

    Abstract: PURPOSE:To provide the optical fiber which is excellent in not only light transmittability but flexibility, moisture resistance, heat resistance, etc., as well by using a specific resin as a core component and a substantially transparent resin have the refractive index lower by >=2% than the core component as a clad component. CONSTITUTION:The substantially transparent polyester resin in which >=5mol% of the acid components consists of at least one kind of diphenyl carboxylic acid selected from diphenyl-2,2'-dicarboxylic acid, diphenyl-2,3'-dicarboxylic acid, and diphenyl-3,3'-dicarboxylic acid is constituted as the core component and the substantially transparent resin which has the refractive index lower by >=2% than the refractive index of the core component is constituted as the clad component. The fiber which has particularly the excellent heat resis tance, moisture resistance and flexibility, etc., while maintaining the light trans mission performance comparing favorably with the light transmission perfor mance of the conventional fiber formed by using polymethyl methacrylate as the core component is obtd. in this way.

    POLYESTER COMPOSITION
    76.
    发明专利
    POLYESTER COMPOSITION 失效

    公开(公告)号：JPH01292059A

    公开(公告)日：1989-11-24

    申请号：JP12133188

    申请日：1988-05-18

    Applicant: TORAY INDUSTRIES

    Inventor： SAEKI TOMOJI ,  ODAJIMA AKIO ,  SUZUKI MASARU

    IPC: C08L67/02 ,  C08J5/18 ,  C08K9/02 ,  C08L67/00

    Abstract: PURPOSE:To obtain a polyester composition suitable as a base film for video tapes, etc., having a few voids, excellent evenness, slipperiness, shaving resistance, etc., by blending a polyester with two kinds of polystyrene particles having specific thermal decomposition temperatures and specific particle diameters. CONSTITUTION:A polyester comprising a bifunctional acid component (e.g., terephthalic acid) consisting essentially of an aromatic dicarboxylic acid and one or more glycol components (e.g., ethylene glycol) is blended with (A) 0.001-2wt.%, preferably 0.005-1wt.% crosslinked polystyrene particles having 0.1-0.6mum, preferably 0.25-0.5mum m average particle diameter and >=380 deg.C thermal decomposition temperature and (B) 0.001-2wt.%, preferably 0.005-1wt.% crosslinked polystyrene particles having 0.6-2mum, preferably 0.6-1.5mum average particle diameter and >=380 deg.C thermal decomposition temperature.

    POLYESTER COMPOSITION
    78.
    发明专利
    POLYESTER COMPOSITION 失效

    公开(公告)号：JPS63304047A

    公开(公告)日：1988-12-12

    申请号：JP13815787

    申请日：1987-06-03

    Applicant: TORAY INDUSTRIES

    Inventor： SAEKI TOMOJI ,  ODAJIMA AKIO ,  SUZUKI MASARU

    IPC: C08K9/02 ,  B29C55/02 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02

    Abstract: PURPOSE:To obtain a polyester composition having excellent flatness, slipperiness, friction resistance and electrical characteristics, by blending organic high polymer fine particles coated with hydrated titanium oxide or titanium oxide with a polyester. CONSTITUTION:A polyester composition obtained by adding (B) 0.001-10wt.% organic high polymer fine particles, having 0.01-5mum, preferably 0.05-2mum average particle diameter, coated with hydrated titanium oxide or titanium oxide and prepared by suspending the organic high polymer fine particles (preferably crosslinked polystyrene, silicone, etc.) in an aqueous solution of titanyl sulfate, heating, reacting the suspension, etc., as a slurry thereof dispersed in ethylene glycol in any stage before starting polymerization - during polymerization reaction of a polyester consisting of (A) a bifunctional acid component (preferably terephthalic acid or dimethyl terephthalate) consisting essentially of an aromatic dicarboxylic acid and one or more glycol components (preferably ethylene glycol).

    PRODUCTION OF POLYESTER
    79.
    发明专利
    PRODUCTION OF POLYESTER 失效

    公开(公告)号：JPS63243126A

    公开(公告)日：1988-10-11

    申请号：JP7783087

    申请日：1987-03-31

    Applicant: TORAY INDUSTRIES

    Inventor： SAEKI TOMOJI ,  ODAJIMA AKIO ,  SUZUKI MASARU

    IPC: C08G63/18 ,  C08G63/181 ,  C08G63/78

    Abstract: PURPOSE:To obtain a polyester, having excellent flatness, slipperiness and electrical characteristics in forming into films and suitable as films for magnetic tapes, photography, etc., by adding inorganic particles, coated with a (hydrated) titanium oxide and having a specific particle diameter. CONSTITUTION:(A) Inorganic particles having 0.01-5mum average particle diameter (e.g. silicon dioxide or talc) is suspended in, e.g. an aqueous solution of titanyl sulfate, heated to form coating layers of (hydrated) titanium oxide on the surface thereof and, as desired, fired at a high temperature. The resultant particles are dispersed in, e.g. a dispersion medium (e.g. methanol) and then added to a system in which (B) a bifunctional acid component consisting essentially of an aromatic dicarboxylic acid (derivative) (e.g. terephthalic acid) and (C) a glycol component, such as ethylene glycol, are being polymerized to afford the aimed polymer. The amount of the above-mentioned inorganic particles added to the system is 0.001-5wt.% based on the resultant polyester.

    POLYESTER COMPOSITION
    80.
    发明专利
    POLYESTER COMPOSITION 失效

    公开(公告)号：JPS62243641A

    公开(公告)日：1987-10-24

    申请号：JP8896586

    申请日：1986-04-17

    Applicant: TORAY INDUSTRIES

    Inventor： ODAJIMA AKIO ,  SUZUKI MASARU ,  OKASAKA HIDESADA

    IPC: C08L67/02 ,  C08G63/18 ,  C08G63/183 ,  C08G63/78 ,  C08K5/05 ,  C08K5/54 ,  C08L67/00

    Abstract: PURPOSE:The titled composition capable of forming a film having improved transparency, evenness and electrical characteristics, comprising a polyester, a functional group-containing silicone compound and an organic lubricant. CONSTITUTION:A polyester having ethylene terephthalate as a main repeating unit is blended with (A) a functional group-containing silicon compound, preferably gamma-methacryloxypropyltrimethoxyslane or methyltrimethoxysilane and an organic lubricant, preferably a higher fatty acid (e.g. capric acid or lauric acid) or a higher alcohol (e.g. octanol or dodecanol). Methoxy group, ethoxy group, silanol group, etc., and vinyl group, epoxy group, amino group, etc., may be cited as the functional group of the component A. When the component A contains two or more functional groups, the groups are preferably selected from both the groups. 100pts.wt. polyester is blended with 0.001-5pts.wt., especially 0.005-0.5pt.wt. component A and 0.001-10pts.wt., especially 0.005-1.0pt.wt. component B.

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