发明授权
US06277491B1 Expandable thermoplastic resin beads and molded foam made from the same
失效
可膨胀热塑性树脂珠和由其制成的模塑泡沫
- 专利标题： Expandable thermoplastic resin beads and molded foam made from the same
- 专利标题（中）： 可膨胀热塑性树脂珠和由其制成的模塑泡沫
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申请号： US09341670申请日： 1999-08-27
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公开(公告)号： US06277491B1公开(公告)日： 2001-08-21
- 发明人: Yasuhiro Sakoda , Hiroyuki Takahashi , Masaya Sato , Narihiko Togo
- 申请人： Yasuhiro Sakoda , Hiroyuki Takahashi , Masaya Sato , Narihiko Togo
- 优先权： JP9-007981 19970120
- 主分类号： B32B516
- IPC分类号： B32B516
摘要：
An object of the invention is to prevent an oil from penetrating into a vessel obtained from expandable thermoplastic resin beads through molding. The above object is achieved by expandable thermoplastic resin beads whose surface or surface layer is coated or incorporated with a fluorine-containing block copolymer comprising of a fluorine-containing vinyl-type polymer segment derived from a fluorine-containing vinyl-type monomer and a lipophilic vinyl-type polymer segment derived from a lipophilic vinyl-type monomer.