发明名称 |
Injection-molded article. |
摘要 |
<p>A large-sized exterior part of an automotive vehicle, injection-molded and formed of a polymer material comprising: (A) polypropylene in an amount ranging from 50 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 DEG C) ranging from 5 to 60 g/10 min.; (B) ethylene-propylene copolymer rubber polymerized in presence of a vanadium-based catalyst, in an amount ranging from 5 to 30 weight %, the copolymer containing propylene in an amount ranging from 20 to 40 weight % relative to the ethylene-propylene copolymer rubber and having a Mooney viscosity ML1+4(100 DEG C) ranging from 20 to 80; (C) ethylene-propylene copolymer rubber polymerized in presence of a titanium-based catalyst, in an amount ranging from 5 to 45 weight %, the copolymer containing propylene in an amount ranging from 30 to 70 weight % relative to the ethylene-prolylene copolymer rubber and having a Mooney viscosity ML1+4(100 DEG C) ranging from 20 to 75; and (D) polyethylene in an amount not more than 10 weight %, the polyethylene having a MFR (at 190 DEG 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 elastic modulus ranging from 3000 to 6000 kg/cm<2>, and a coefficient of linear expansion not higher than 8 X 10<-><5>/ DEG C. <IMAGE></p> |
申请公布号 |
EP0465317(A2) |
申请公布日期 |
1992.01.08 |
申请号 |
EP19910401759 |
申请日期 |
1991.06.27 |
申请人 |
NISSAN MOTOR CO., LTD.;MITSUBISHI PETROCHEMICAL CO., LTD. |
发明人 |
TERADA, MASAHIRO;SUGIMOTO, NOBUJI;WATANABE, TOSHIRO;SUGIMOTO, TAKASHI |
分类号 |
B29C45/00;B60R19/03;C08J5/00;C08L23/08;C08L23/10;C08L23/12;C08L23/14;C08L23/16 |
主分类号 |
B29C45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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