发明公开
EP0562703A1 Polyolefine powder for molding at low temperature, powder molding method using the same and molded article thereof
失效
使用相同的低北部沿海地区，粉末成型法模制聚烯烃粉末，和制品由其模制。
- 专利标题： Polyolefine powder for molding at low temperature, powder molding method using the same and molded article thereof
- 专利标题（中）： 使用相同的低北部沿海地区，粉末成型法模制聚烯烃粉末，和制品由其模制。
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申请号： EP93300409.5申请日： 1993-01-21
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公开(公告)号： EP0562703A1公开(公告)日： 1993-09-29
- 发明人: Mendori, Hiroaki , Hikasa, Tadashi , Hamanaka, Tatsuo , Tatsumi, Masayuki , Igarashi, Toshio
- 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： Cresswell, Thomas Anthony
- 优先权： JP68131/92 19920326
- 主分类号： B29C41/18
- IPC分类号： B29C41/18 ; B29C41/00 ; C08L23/10 ; C08L23/16
摘要：
A powder for use in low temperature powder molding comprises a thermoplastic resin or thermoplastic elastomer composition, said resin or composition having a complex dynamic viscosity η* (170°C) of 1.5 x 10⁴ Pas (1.5 X 10⁵ poise) or less, as measured at an atmospheric temperature of 170°C and a complex dynamic viscosity η* (250°C) of 5.0 x 10³ Pas (5.0 x 10⁴ poise) or less, as measured at an atmospheric temperature of 250°C, in dynamic viscoelasticity measurements at a frequency of 1 radian/sec and a temperature average viscosity index k, calculated from the following formula, of 10 or less: k = η* (170°C)/η* (250°C)
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