COPOLYMER BLENDS
    2.
    发明专利

    公开(公告)号:CA1121085A

    公开(公告)日:1982-03-30

    申请号:CA324053

    申请日:1979-03-23

    Inventor: ROSEN IRVING

    Abstract: COPOLYMER BLENDS Blends of a copolymer of methyl methacrylate and styrene with an acrylonitrile-styrene copolymer have improved optical, mechanical and gas barrier properties as well as improved processability.

    4.
    发明专利
    未知

    公开(公告)号:AT356896B

    公开(公告)日:1980-05-27

    申请号:AT598477

    申请日:1977-08-18

    Abstract: Process for preparing low molecular weight, light weight and high molecular weight xylene-formaldehyde thermoplastic polymers, comprising reacting formaldehyde or a formaldehyde producing material with xylene in the presence of an acid catalyst at an elevated temperature in a closed reactor of the which excludes air during the reaction. (Machine-translation by Google Translate, not legally binding)

    8.
    发明专利
    未知

    公开(公告)号:DE2736761A1

    公开(公告)日:1978-03-02

    申请号:DE2736761

    申请日:1977-08-16

    Abstract: Process for preparing low molecular weight, light weight and high molecular weight xylene-formaldehyde thermoplastic polymers, comprising reacting formaldehyde or a formaldehyde producing material with xylene in the presence of an acid catalyst at an elevated temperature in a closed reactor of the which excludes air during the reaction. (Machine-translation by Google Translate, not legally binding)

    RUBBER MODIFIED OLEFINIC NITRILE-VINYL AROMATIC-MALEIMIDE INTERPOLYMERS

    公开(公告)号:CA964789A

    公开(公告)日:1975-03-18

    申请号:CA116284

    申请日:1971-06-22

    Abstract: 1352437 Graft polymers STANDARD OIL CO 24 June 1971 [22 Sept 1970] 29631/71 Heading C3G A resinous polymer is produced by polymerization of 100 parts by weight of (A) an olefinically unsaturated nitrile of structure wherein R represents hydrogen, a C 1 to C 4 -alkyl group or a halogen, (B) 0À5 to 10 moles per mole of (A) of a vinyl or vinylidene aromatic monomer and (C) 0À2 to 2À5 moles per mole of (A) of maleimide in the presence of from 1 to 20 parts of a conjugated diolefin elastomer. Examples are given in which styrene, acrylonitrile and maleimide are polymerized in an aqueous emulsion containing polybutadiene or butadienestyrene copolymer.

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