发明公开
EP0540941A1 Multi-layer molded article and production process thereof
失效
Mehrschichtiger geformter Gegenstand und Verfahren zu dessen Herstellung。
- 专利标题： Multi-layer molded article and production process thereof
- 专利标题（中）： Mehrschichtiger geformter Gegenstand und Verfahren zu dessen Herstellung。
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申请号： EP92118016.2申请日： 1992-10-21
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公开(公告)号： EP0540941A1公开(公告)日： 1993-05-12
- 发明人: Igarashi, Toshio , Usui, Nobuhiro , Shinohara, Sueharu , Tatsumi, Masayuki , Mendori, Hiroaki
- 申请人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 申请人地址： 5-33 Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka JP
- 专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人地址： 5-33 Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka JP
- 代理机构： Klunker . Schmitt-Nilson . Hirsch
- 优先权： JP275380/91 19911023
- 主分类号： B29C43/20
- IPC分类号： B29C43/20 ; B29C41/04
摘要：
A multi-layer molded article (11) comprising a skin layer (4) and a thermoplastic resin layer (10), wherein said skin layer comprises a layer produced by powder molding a powder composition containing the following thermoplastic elastomer (A) or a composite layer comprising said powder molded layer further backed with a foamed layer formed by powder molding:
(A) a thermoplastic elastomer comprising a composition composed of an ethylene/α-olefin copolymer rubber and a polyolefin resin, or a thermoplastic elastomer comprising a partially crosslinked composition composed of an ethylene/α-olefin copolymer rubber and a polyolefin resin; said thermoplastic elastomer having a complex dynamic viscosity η*(1) as measured at a frequency of 1 radian/sec at 250°C, of 1.5 x 10⁵ poise or less, a Newtonian viscosity index, n, calculated from the following formula by using the complex dynamic viscosity η*(1) and the complex dynamic viscosity η*(100) at a frequency of 100 radian/sec of less than 0.6:
n = {logη*(1) - logη*(100)}/2.
(A) a thermoplastic elastomer comprising a composition composed of an ethylene/α-olefin copolymer rubber and a polyolefin resin, or a thermoplastic elastomer comprising a partially crosslinked composition composed of an ethylene/α-olefin copolymer rubber and a polyolefin resin; said thermoplastic elastomer having a complex dynamic viscosity η*(1) as measured at a frequency of 1 radian/sec at 250°C, of 1.5 x 10⁵ poise or less, a Newtonian viscosity index, n, calculated from the following formula by using the complex dynamic viscosity η*(1) and the complex dynamic viscosity η*(100) at a frequency of 100 radian/sec of less than 0.6:
n = {logη*(1) - logη*(100)}/2.
公开/授权文献
- EP0540941B1 Multi-layer molded article and production process thereof 公开/授权日：1998-06-03
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