IMPROVED CARBONATE POLYMER BLENDS WITH REDUCED GLOSS
    4.
    发明公开
    IMPROVED CARBONATE POLYMER BLENDS WITH REDUCED GLOSS 审中-公开
    改进的碳酸酯聚合物与光泽降低混合

    公开(公告)号:EP2195379A1

    公开(公告)日:2010-06-16

    申请号:EP08798578.4

    申请日:2008-08-25

    摘要: Disclosed is a carbonate polymer blend composition comprising (a) a carbonate polymer, (b) a propylene polymer, (c) a compatibilizing graft copolymer, (d) a polymer selected from a graft modified propylene polymer and/or an alpha-olefin carboxylic acid copolymer, and/or an olefin block copolymer, optionally (e) a filler, (f) optionally a thermoplastic resin other than (a), (b), (c), or (d) and (g) optionally one or more additive selected from stabilizers, pigments, mold release agents, flow enhancers, or antistatic agents. Said carbonate polymer blend composition has a good balance of physical properties, impact resistance, processability, and reduced gloss in molded articles.

    摘要翻译: (a)碳酸酯聚合物,(b)丙烯聚合物,(c)相容性接枝共聚物,(d)选自接枝改性丙烯聚合物和/或α-烯烃羧酸的聚合物 (e)填料,(f)任选的除(a),(b),(c)或(d)以外的热塑性树脂和(g)任选的一种或多种 选自稳定剂,颜料,脱模剂,流动增强剂或抗静电剂的更多添加剂。 所述碳酸酯聚合物共混物组合物具有物理性质,耐冲击性,可加工性和模塑制品中光泽度降低的良好平衡。

    PROCESS FOR THE PRODUCTION OF A (CO) POLYMER COMPOSITION BY MEDIATED FREE RADICAL CHAIN GROWTH POLYMERIZATION
    5.
    发明公开
    PROCESS FOR THE PRODUCTION OF A (CO) POLYMER COMPOSITION BY MEDIATED FREE RADICAL CHAIN GROWTH POLYMERIZATION 审中-公开
    制造方法(共)聚合物组合物介导的自由基-BASED链增长

    公开(公告)号:EP2142575A1

    公开(公告)日:2010-01-13

    申请号:EP08732111.3

    申请日:2008-03-13

    IPC分类号: C08F2/00 C08F2/38

    CPC分类号: C08F2/001 C08F2/38 C08F4/00

    摘要: The present invention is a multistage process for the preparation of a co)polymer composition. Said process comprises the steps of: i) polymerizing in a first stage a reaction mixture comprising one or more monomer with optionally a rubber, a comonomer, a polymerization initiator, a chain transfer agent, a decomposition catalyst and/or a solvent, in the presence of one or more stable free radical precursor which provides a stable free radical during the polymerization process and/or one or more stable free radical such that the polymerization proceeds via a mediated free radical polymerization mechanism until a partial conversion of monomer(s) to (co)polymer is obtained and ii) polymerizing in a second stage the partially converted reaction mixture under reaction conditions that proceed via a free radical polymerization mechanism to obtain a further degree of conversion of monomer(s) to (co)polymer.