Manufacture of impact-resistant olefinic-nitrile copolymers
    41.
    发明授权
    Manufacture of impact-resistant olefinic-nitrile copolymers 失效
    耐冲击烯烃 - 腈共聚物的制造

    公开(公告)号:US3974239A

    公开(公告)日:1976-08-10

    申请号:US609373

    申请日:1975-09-02

    CPC分类号: C08F220/42 C08F265/08

    摘要: Impact-resistant polymers which have low permeability to gases and vapors are prepared by polymerizing an olefinic nitrile, such as acrylonitrile, optionally with an acrylic ester, such as methyl acrylate, to at least about 70% conversion, and then introducing into the polymerization reaction medium a conjugated diene monomer, such as butadiene-1,3, and completing the polymerization reaction in the presence of said diene monomer.

    摘要翻译: 对气体和蒸气具有低渗透性的耐冲击聚合物通过将任选与丙烯酸酯如丙烯酸甲酯的烯烃腈如丙烯腈聚合至至少约70%转化率,然后引入聚合反应中来制备 中和共轭二烯单体如丁二烯-1,3,并在所述二烯单体存在下完成聚合反应。

    Impact-modified compositions and method

    公开(公告)号:US20040225069A1

    公开(公告)日:2004-11-11

    申请号:US10748394

    申请日:2004-05-05

    IPC分类号: C08L051/00

    摘要: The present invention relates to a rubber modified thermoplastic resin composition comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted to the elastomeric phase, which is prepared by a method comprising the steps of: (a) polymerizing a mixture of monomers in a first stage in the presence of the elastomeric phase, at least one of which monomers is selected from the group consisting of vinyl aromatic monomers and at least one of which monomers is selected from the group consisting of monoethylenically unsaturated nitrile monomers, followed by (b) polymerizing one or more monomers in at least one subsequent stage in the presence of the elastomeric phase from (a), wherein the one or more monomers comprise at least one monomer selected from the group consisting of (C1-C12)alkyl- and aryl-(meth)acrylate monomers. The method is also provided.