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    THERMOPLASTIC FILM
    4.
    发明专利
    THERMOPLASTIC FILM 失效

    公开(公告)号：JPS56147847A

    公开(公告)日：1981-11-17

    申请号：JP5034380

    申请日：1980-04-18

    Applicant: TORAY INDUSTRIES

    Inventor： CHIBA KAZUMASA ,  MURAKI TOSHIO ,  SUGA NAOHIKO

    IPC: C08L77/00 ,  C08L23/00 ,  C08L101/00

    Abstract: PURPOSE:Transparent titled film that is made by adding a specific ethyelenic ionomer resin to a polyamide, thus having improved pinhole resistance at low temperature and heat-seal strength with no adverse effect on the properties of polyamide. CONSTITUTION:A polyamide matrix of 2.0-4.5 relative viscosity (50-95wt%) and an ethylenic ionomer resin matrix with a melt index of 0.5-7.0, embrittle temperature of -60 deg.C and an average particle size of less than 2mu (trade name: Surlin 1554) (5-50wt%) are mixed, e.g., both of pellets are stirred at a high speed and melt kneaded. Then, the mixture is extruded into a film.

    PREPARATION OF THERMOPLASTIC POLYESTER VESSEL
    5.
    发明专利
    PREPARATION OF THERMOPLASTIC POLYESTER VESSEL 失效

    公开(公告)号：JPS5675833A

    公开(公告)日：1981-06-23

    申请号：JP15334179

    申请日：1979-11-27

    Applicant: TORAY INDUSTRIES

    Inventor： OONO KATSUYA ,  TAKAHASHI TADASHI ,  SUGA NAOHIKO

    IPC: B29B11/08 ,  B29B11/10 ,  B29C49/04 ,  B29C49/06 ,  B29C49/08 ,  B29C49/12 ,  B29C49/48 ,  B29C49/58 ,  B29C49/64 ,  B29C49/66 ,  B29C49/68 ,  B29C65/00

    Abstract: PURPOSE:To provide a vessel of high mechanical strength, etc. when biaxial- stretch-blow-forming the vessel by stretching while keeping the temperature of a blowing die within a specific range and then filling completely a liquid of a specific temperature into the blow-formed vessel. CONSTITUTION:When forming a biaxial-stretch-blown vessel of a thermoplastic polyester such as polyethylene terephtalate, a parison with a bottom heated by keeping the temperature of a blowing die within a temperature range which satisfies an equation I(Tg is the glass transistion temperature of the thermoplastic polyester; MT is the temperature of the blowing die) is stretched in the axial direction, and at the same time, pressurized gas is blown into the parison to stretch it laterally. Next, after filling a liquid of a temperature which satisfies an equation II (LT is the temperature of the liquid) into the formed blow vessel completely, the blow vessel is taken out, obtaining a vessel of high thermal contraction resistibility, etc.

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