10.
    发明专利
    未知

    公开(公告)号:NO137645C

    公开(公告)日:1978-03-29

    申请号:NO387671

    申请日:1971-10-19

    Abstract: 1360685 Graft polymers STANDARD OIL CO 21 Oct 1971 [13 Nov 1970] 48958/71 Heading C3G A graft polymer is produced by polymerization of (A) from 70 to 85% by weight of an olefinically unsaturated nitrile, (B) 2 to 13% of an alpha-olefin of structure wherein R 1 and R 11 are C 1 to C 7 -alkyl groups, (C) 2 to 30% of a monomer selected from a vinyl ester, acrylate ester, an acrylamide or a methacrylate ester, and (D) up to 17% of a vinyl or vinylidene aromatic monomer, wherein the combined amount of (A)+(B)+(C)+(D) is 100%, in the presence of from 1 to 30 parts by weight per 100 parts of (A) + (B) + (C)+(D) of (E) a rubbery polymer of 50 to 100% by weight of polymerized conjugated diene monomer and 50 to 0% of a polymerized vinyl or vinylidene aromatic monomer. In the examples, graft polymers are prepared in aqueous emulsion from (a) butadiene-styrene rubber or polybutadiene, acrylonitrile, isobutylene, styrene and methyl acrylate, N-t-octyl acrylamide, N-t-butyl acrylamide or vinyl acetate and (b) polybutadiene, acrylonitrile, diisobutylene, styrene and methyl acrylate.

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