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    • 41. 发明公开
    • HIGH STIFFNESS HIGH IMPACT PROPYLENE IMPACT COPOLYMERS
    • SCH IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT IT
    • EP2580281A1
    • 2013-04-17
    • EP11727052.0
    • 2011-06-06
    • Dow Global Technologies LLC
    • CHOU, Chai-Jing
    • C08L23/10
    • C08L23/16C08L23/0815C08L23/10C08L2207/02C08L2666/08
    • The present invention relates to polypropylene impact copolymer compositions which exhibit improved stiffness without degrading the impact resistance performance. The polypropylene impact copolymer comprises a matrix and a dispersed phase. The matrix comprises a polypropylene homopolymer or a propylene/alpha-olefin random copolymer which comprises more than 50 wt. % of units derived from propylene monomer. The matrix should have a relatively high crystallinity, preferably 50% or greater. The polypropylene homopolymer or a propylene/alpha-olefin random copolymer preferably has a MWD between 4 and 8, such as typically obtained using Ziegler-Natta catalysts. The dispersed phase in the impact copolymer comprises an ethylene-propylene copolymer which comprises from 45 to 70 wt. % of units derived from an ethylene monomer. Preferably the dispersed phase comprises from 20 to 50 percent by weight of the polypropylene impact copolymer.
    • 本发明涉及在不降低抗冲击性能的情况下显示出改善的刚度的聚丙烯抗冲共聚物组合物。 聚丙烯抗冲共聚物包含基质和分散相。 基质包括聚丙烯均聚物或丙烯/α-烯烃无规共聚物,其包含大于50wt。 衍生自丙烯单体的单元的%。 该基质应具有较高的结晶度,优选为50%以上。 聚丙烯均聚物或丙烯/α-烯烃无规共聚物优选具有4至8的MWD,例如通常使用齐格勒 - 纳塔催化剂获得的。 抗冲共聚物中的分散相包括乙烯 - 丙烯共聚物,其包含45至70wt。 衍生自乙烯单体的单元的%。 优选地,分散相包含20至50重量%的聚丙烯抗冲共聚物。
    • 50. 发明公开
    • Process for producing modified epoxy resin
    • 一种用于改性环氧树脂的制备方法
    • EP2481773A3
    • 2012-09-05
    • EP12157306.7
    • 2004-05-27
    • Kaneka Corporation
    • Yamaguchi, KatsumiUeno, MasakuniMiyamoto, Masahiro
    • C08L63/00C08L51/04
    • C08L51/04C08L63/00H05K1/0373C08L2666/22C08L2666/14C08L2666/08
    • The present invention relates to a dispersion (F) comprising rubber-like polymer particles (B) and organic media (C) and (D), which is obtainable by bringing an organic medium (C) showing partial solubility in water into contact with an aqueous latex of rubber-like polymer particles (B) and then bringing an organic medium (D) having lower partial solubility in water than that of (C) into contact therewith to separate an aqueous layer substantially from the rubber-like polymer particles (B),
      wherein the rubber-like polymer particles (B) are obtainable by graft-polymerizing 5 to 50% by weight of a shell layer (B-2) comprising at least one monomer selected from the group consisting of (meth)acrylates, aromatic vinyls, vinyl cyanides, unsaturated acid derivatives, (meth)acrylamide derivatives and maleimide derivatives, with 50 to 95% by weight of a rubber particle core (B-1) comprising a rubber elastic body composed of not less than 50% by weight of at least one monomer selected from the group consisting of diene monomers and (meth)acrylate monomers and less than 50% by weight of another copolymerizable vinyl monomer, or a polysiloxane rubber elastic body, or a mixture thereof,
      wherein the solubility of water in the organic medium (C) at 25°C is 9 to 40% by weight,
      wherein the amount of the organic medium (C) is 50 to 350 parts by weight relative to 100 parts by weight of the latex of the rubber-like polymer particles (B), and
      wherein the amount of the organic medium (D) is 20 to 1000 parts by weight relative to 100 parts by weight of the organic medium (C).