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    BIAXIALLY ORIENTED POLYESTER FILM
    92.
    发明专利
    BIAXIALLY ORIENTED POLYESTER FILM 失效

    公开(公告)号：JPH02160533A

    公开(公告)日：1990-06-20

    申请号：JP21780389

    申请日：1989-08-24

    Applicant: TORAY INDUSTRIES

    Inventor： TOKUOKA YUMIKO ,  ABE KOICHI ,  OKASAKA HIDESADA

    IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02 ,  C08L101/00

    Abstract: PURPOSE:To obtain a film superior in prevention of depositing properties of oligomer, scraping resistance and in transparency, by a method wherein a dispersion diameter and a ratio among the dispersion diameters of thermoplastic resin within a film, a ratio of Rz/Ra of the film, the mean value in the longitudinal and lateral direction of Young's moduli, and content of an inner oligomer are made so as to fall within specific ranges. CONSTITUTION:Pellets obtained by compounding at least a kind of thermoplastic resin whose difference in cohesive energy density from that of polyester A is at least 12 with the said polyester A is fed to a melting and extruding machine, extruded into a sheetlike state through a slitlike die, cooled, solidified, an unstretched film is formed and then oriented biaxially through biaxial stretching. A dispersion diameter of the said thermoplastic resin within a film obtained in this manner is made into 10-10,000nm in a facial direction of the film and 0.1-100nm in a thicknesswise direction of the same and a ratio between them (length of a facial direction/length of a thicknesswise direction) is made so as to fall within a range of 3-1,000. A ratio Rz/Ra between surface roughness parameters Rz, Ra and the mean value of the longitudinal and lateral Young's moduli of the said film and content of an inner oligomer within the said film are made respectively into less than 13, at least 350kg/mm and at least 0.7wt.%.

    POLYESTER COMPOSITION
    97.
    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.

    PREPARATION OF PARTICLE SLURRY
    99.
    发明专利
    PREPARATION OF PARTICLE SLURRY 失效

    公开(公告)号：JPS62195051A

    公开(公告)日：1987-08-27

    申请号：JP22363985

    申请日：1985-10-09

    Applicant: TORAY INDUSTRIES

    Inventor： UEDA TOMOAKI ,  UCHIDA FUMIO ,  OKASAKA HIDESADA

    IPC: C08L67/02 ,  B01F3/12 ,  C08G63/78 ,  C08K3/00 ,  C08L67/00 ,  C09C3/00 ,  C09C3/04

    Abstract: PURPOSE:To deflocculate fine particles while suppressing the pulverization of primary particles and efficiently obtain a particle slurry having good hue, by stirring solid particles with particles having a larger particle size than the above-mentioned particles at a specific stirring speed in dispersing the solid particles in a liquid. CONSTITUTION:(A) Particles, e.g. titanium dioxide, etc., together with (B) particles having an average particle size of about 10-5,000 times based on the average primary particle size of the particles (A) and

    PREPARATION OF GRAIN SLURRY
    100.
    发明专利
    PREPARATION OF GRAIN SLURRY 失效

    公开(公告)号：JPS62149332A

    公开(公告)日：1987-07-03

    申请号：JP29046185

    申请日：1985-12-25

    Applicant: TORAY INDUSTRIES

    Inventor： UEDA TOMOAKI ,  UCHIDA FUMIO ,  OKASAKA HIDESADA

    IPC: B01J13/00 ,  B01F3/00 ,  B01J2/00

    Abstract: PURPOSE:To obtain excellent slurry wherein a grain A is dispersed in a primary grain by stirring the grain A to be dispersed together with a grain B having the specified grain diameter larger than the grain A in liquid for forming slurry in the specified conditions such as stirring velocity and time or the like and thereafter separating the grain B. CONSTITUTION:A fine grain A having submicron region such as inorganic compd. and pigment is stirred together with ceramic and glass, etc., preferably a nonflocculable grain B wherein average grain diameter is 10-5,000 times of the grain A and

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