31.
    发明专利
    未知

    公开(公告)号:BR9805669A

    公开(公告)日:2000-03-21

    申请号:BR9805669

    申请日:1998-12-14

    Abstract: A novel composite high-nitrile fiber in which the polymers are arranged in a sheath core type configuration. One polymer of the composite filament comprises a solventless, waterless, melt-processable acrylonitrile olefinically unsaturated polymer and the other polymer of the composite filament comprises an organic polymer. Either polymer can be employed as the sheath or the core component of the composite filament.

    36.
    发明专利
    未知

    公开(公告)号:BR8603501A

    公开(公告)日:1988-01-12

    申请号:BR8603501

    申请日:1986-07-24

    Abstract: A composition comprising an intimate admixture of (a) 50 to 98 parts by weight of a vinyl chloride polymer having an inherent viscosity of at least 0.4, and (b) 50 to 2 parts by weight of an addition terpolymer containing acrylonitrile, indene and a third monomer selected from methyl methacrylate or at least one monomer of the group alpha -methylstyrene and vinyl aromatics of the formula: where each R is independently selected from Cl, H and a C1 to C9 alkyl group and x = 1 or 2, combined in the polymer structure such that (1) when the third monomer is methyl methacrylate, the polymer contains in weight percents 2-35 acrylonitrile, 10-67 indene, 5-85 methyl methacrylate, and the moles of acrylonitrile plus methyl methacrylate are equal to or more than the moles of indene. (2) when the third monomer is one of both of alpha -methylstyrene and said vinyl aromatics, the polymer contains in weight percent 10-40 acrylonitrile, 5-67 indene and 4-70 of said third monomer, and the moles of acrylonitrile plus said vinyl aromatics is equal to or greater than the moles of alpha -methylstyrene plus indene.

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