High-notched-impact core-shell polymers having improved weather
resistance
    41.
    发明授权
    High-notched-impact core-shell polymers having improved weather resistance 失效
    具有改进的耐候性的高切口冲击的核 - 壳聚合物

    公开(公告)号:US4393172A

    公开(公告)日:1983-07-12

    申请号:US309569

    申请日:1981-10-08

    CPC分类号: C08F279/02 Y10S525/902

    摘要: A particulate graft polymer comprising (a) a core formed by a crosslinked homopolymer of a conjugated diene or a copolymer thereof with up to 10% by weight of styrene or acrylonitrile; (b) a first shell formed by a crosslinked homopolymer of an acrylic acid alkyl ester or a copolymer thereof with up to 30% by weight of vinyl monomers; (c) a second shell formed by a polymer of resin-forming monomers, a process for manufacturing these graft polymers by means of a multi-stage emulsion polymerization, and their application as molding compositions, optionally together with rigid thermoplastic resins.

    摘要翻译: 一种颗粒状接枝聚合物,其包含(a)由共轭二烯的交联均聚物或其共聚物与至多10重量%的苯乙烯或丙烯腈的交联均聚物形成的芯; (b)由丙烯酸烷基酯的交联均聚物或其共聚物与至多30重量%的乙烯基单体形成的第一壳; (c)由树脂形成单体的聚合物形成的第二壳,通过多阶段乳液聚合制造这些接枝聚合物的方法,以及它们作为模塑组合物,任选地与刚性热塑性树脂一起使用。

    Process for the continuous coagulation of vinyl polymer latices
    42.
    发明授权
    Process for the continuous coagulation of vinyl polymer latices 失效
    乙烯基聚合物胶乳的连续凝结方法

    公开(公告)号:US5314990A

    公开(公告)日:1994-05-24

    申请号:US692496

    申请日:1991-04-29

    IPC分类号: C08J3/16 C08F6/22 C08F6/16

    CPC分类号: C08F6/22

    摘要: A process for the continuous processing of vinyl polymer latices to produce thermoplastically processible vinyl polymer powder by coagulating a stream of a vinyl polymer latex by the addition of a stream of a coagulant with intensive mixing and shearing in a cascade of vessels at an average residence time per vessel of 10 to 60 minutes and at temperatures from 50 to 120.degree. C., volatile auxiliary substances and residual monomers in the polymer being optionally removed by steam distillation and part of the serum separated from the vinyl polymer being added to the stream of coagulant.

    摘要翻译: 一种连续处理乙烯基聚合物胶乳以通过凝结乙烯基聚合物胶乳物流的方式连续处理乙烯基聚合物胶乳的方法,该方法是通过在凝结剂流中加入混合物并在平均停留时间的梯级下进行剪切 每个容器10至60分钟,温度为50至120℃,通过蒸汽蒸馏任选除去聚合物中的挥发性辅助物质和残留单体,并将部分从乙烯基聚合物中分离的血清加入到凝结剂流中 。

    Thermoplastic molding compositions
    44.
    发明授权
    Thermoplastic molding compositions 失效
    热塑性成型组合物

    公开(公告)号:US4163032A

    公开(公告)日:1979-07-31

    申请号:US953000

    申请日:1978-10-20

    CPC分类号: C08L25/12 C08L51/04 C08L51/06

    摘要: A thermoplastic molding composition having improved flow, toughness. and heat distortion comprising a polymer mixture of (A) 25 to 95% by weight of a graft polymer of 70 to 30% by weight of a mixture of styrene (95 to 50% by weight) and acrylonitrile (5 to 50% by weight) on 30 to 70% by weight of an EPDM-rubber, and (B) 50 to 75% by weight of a terpolymer of acrylonitrile, maleic acid anhydride and styrene, the terpolymer containing 10 to 30 parts by weight of acrylonitrile, 7.5 to 15 parts by weight of maleic acid anhydride, and 82.5 to 55 parts by weight of styrene in copolymerised form.

    摘要翻译: 具有改善的流动性,韧性的热塑性模塑组合物。 和热变形,其包含(A)25至95重量%的70至30重量%的苯乙烯(95至50重量%)和丙烯腈(5至50重量%)的混合物的接枝聚合物的聚合物混合物 ),30〜70重量%的EPDM-橡胶,(B)50〜75重量%的丙烯腈,马来酸酐和苯乙烯的三元共聚物,三元共聚物含有10〜30重量份的丙烯腈,7.5〜 15重量份马来酸酐和82.5至55重量份共聚形式的苯乙烯。

    Trialkylsilyloxy-1,1-diphenyl ethylenes and polymers produced therewith
    48.
    发明授权
    Trialkylsilyloxy-1,1-diphenyl ethylenes and polymers produced therewith 失效
    三烷基甲硅烷氧基-1,1-二苯基乙烯和由其制备的聚合物

    公开(公告)号:US5153291A

    公开(公告)日:1992-10-06

    申请号:US492843

    申请日:1990-03-13

    摘要: Trialkylsilyloxy-1,1-diphenyl ethylenes corresponding to general formula I, new polymers produced therewith terminated by aryl trialkylsilyl ether groups or by phenolic hydroxyl groups and a process for the production of these polymers by anionic polymerization ##STR1## in which R.sup.1, R.sup.2 .dbd.H, C.sub.1 -C.sub.4 alkyl, OCH.sub.3,R.sup.3 .dbd.H, C.sub.1 -C.sub.4 alkyl, O--C.sub.1 -C.sub.4 alkyl,R.sup.4 .dbd.H, C.sub.1 -C.sub.4 alkyl,R.sup.5 .dbd.C.sub.1 -C.sub.4 alkyl,R.sup.6 .dbd.H, C.sub.1 -C.sub.4 alkyl.

    摘要翻译: 对应于通式I的三烷基甲硅烷氧基-1,1-二苯基乙烯,通过芳基三烷基甲硅烷基醚基团或酚羟基封端的新聚合物和通过阴离子聚合制备这些聚合物的方法(I),其中R 1 ,R2 = H,C1-C4烷基,OCH3,R3 = H,C1-C4烷基,O-C1-C4烷基,R4 = H,C1-C4烷基,R5 = C1-C4烷基,R6 = H,C1- C4烷基。