发明授权
US5389319A Process for producing thermoplastic polyester series resin foamed
material
失效
制造热塑性聚酯系列树脂发泡材料的方法
- 专利标题： Process for producing thermoplastic polyester series resin foamed material
- 专利标题（中）： 制造热塑性聚酯系列树脂发泡材料的方法
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申请号： US802668申请日： 1991-12-05
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公开(公告)号： US5389319A公开(公告)日： 1995-02-14
- 发明人: Motoshige Hayashi , Norio Amano , Takaaki Hirai , Takeshi Taki , Masatoshi Ishibashi
- 申请人： Motoshige Hayashi , Norio Amano , Takaaki Hirai , Takeshi Taki , Masatoshi Ishibashi
- 申请人地址： JPX Nara
- 专利权人： Sekisui Kaseihin Kogyo Kabushiki Kaisha
- 当前专利权人： Sekisui Kaseihin Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Nara
- 优先权： JPX1-344249 19891227; JPX1-344250 19891227; JPX2-182371 19900709
- 主分类号： B29C44/22
- IPC分类号： B29C44/22 ; B29C47/88 ; B29C70/08 ; C08J9/00 ; B29C67/22
摘要：
A method of forming a thermoplastic polyester series foamed material having a thickness of at least 3 mm and an apparent density of from 0.05 to 0.7 g/cm.sup.3, wherein the crystallinity of the resin in the surface portion within 0.5 mm from the surface of the foamed material is not more than 30% and at least 1% lower than the crystallinity of the resin in the central portion of the foamed material.
公开/授权文献
- US4191198A Cigar head wrapping mechanism 公开/授权日：1980-03-04
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