Injection-molded article

专利名称：Injection-molded article发明人：Terada, Masahiro,Sugimoto,

Nobuji,Watanabe, Toshiro,Sugimoto, Takashi

申请号：EP91401759.5申请日：19910627公开号：EP0465317A2公开日：19920108

专利附图：

摘要：A large-sized exterior part of an automotive vehicle, injection-molded andformed of a polymer material comprising: (A) polypropylene in an amount ranging from50 to 70 weight %, the polypropylene containing ethylene in an amount not more than 15

weight % relative to the polypropylene and having a MFR (at 230°C) ranging from 5 to 60g/10 min.; (B) ethylene-propylene copolymer rubber polymerized in presence of avanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymercontaining propylene in an amount ranging from 20 to 40 weight % relative to theethylene-propylene copolymer rubber and having a Mooney viscosity ML₁₊₄(100°C)ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized inpresence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, thecopolymer containing propylene in an amount ranging from 30 to 70 weight % relative tothe ethylene-prolylene copolymer rubber and having a Mooney viscosity ML₁₊₄(100°C)ranging from 20 to 75; and (D) polyethylene in an amount not more than 10 weight %, thepolyethylene having a MFR (at 190°C) ranging from 5 to 50 g/10 min. The injection-molded article has an average thickness ranging from 2 to 6 mm, a flexural elasticmodulus ranging from 3000 to 6000 kg/cm², and a coefficient of linear expansion nothigher than 8 X 10⁻⁵/°C.

申请人：NISSAN MOTOR CO., LTD.,MITSUBISHI PETROCHEMICAL CO., LTD.

地址：No.2, Takara-cho, Kanagawa-ku Yokohama City JP,5-2, Marunouchi 2-chomeChiyoda-ku Tokyo JP

国籍：JP,JP

代理机构：Beauchamps, Georges

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