11.
    发明专利
    未知

    公开(公告)号:NO754199L

    公开(公告)日:1976-08-24

    申请号:NO754199

    申请日:1975-12-11

    Inventor: LIG S-H COFFEY G P

    Abstract: Polymeric compositions having good impact resistance, low permeability to gases, and high-softening temperatures which are composed of a conjugated diene monomer, such as butadiene, an olefinically unsaturated nitrile, such as acrylonitrile, and indene are described.

    13.
    发明专利
    未知

    公开(公告)号:SE7506827L

    公开(公告)日:1975-12-18

    申请号:SE7506827

    申请日:1975-06-13

    Inventor: COFFEY G P

    Abstract: A process for preparing polymeric compositions having low permeability to gases and which are particularly useful in the packaging industry wherein said polymers are prepared from rubber-modified copolymers of an olefinically unsaturated nitrile monomer and a vinyl aromatic monomer using tertiary butyl mercaptan as a chain transfer agent in the polymerization reaction.

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