METHOD FOR IMPROVING COLOR AND IMPACT STRENGTH OF NITRILE POLYMERS

    公开(公告)号:KR820002027B1

    公开(公告)日:1982-10-25

    申请号:KR790001899

    申请日:1979-06-11

    Abstract: The color and impact strength of nitrile polymers, prepared by polymn. of an olefinically unsatd. nitrile with a monovinyl monomer in the presence of a rubber, were improved by heating the polymer to a plastic state in the absence of O and in presence of an inert gas. Thus, an acrylonitrile-rubber-vinyl compd. latex, coagulated and formed into strands was pelletized by screw extrusion in the presence of CO2. The product had Izod impact strength 2.57kg/cm2, yellowness index 28.

    RECYCLE PLASTIC CONTAINER FOR FOOD DRUG AND COSMETIC USE

    公开(公告)号:ZA766996B

    公开(公告)日:1977-10-26

    申请号:ZA766996

    申请日:1976-11-23

    Inventor: BOND T STANDISH N

    Abstract: The case of the plastic container (1) is produced in the form of a laminated body from two resin layers. The inner layer (2), coming into contact with the goods, is a virgin resin. The outer layer (3) is a recycled resin. The container thus contains recycled plastic, however the plastic coming into contact with the goods is always virgin and corresponds to health and safety standards. The preferred use of the container (1) is a bottle.

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