| 发明名称 |
THERMOPLASTIC POLYESTER SERIES RESIN FOAMED MATERIAL AND PRODUCTION |
| 摘要 |
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/cm3 is diclosed, 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. |
| 申请公布号 |
CA2033133(C) |
申请公布日期 |
2001.12.11 |
| 申请号 |
CA19902033133 |
申请日期 |
1990.12.24 |
| 申请人 |
SEKISUI KASEIHIN KOGYO KABUSHIKI KAISHA |
发明人 |
HAYASHI, MOTOSHIGE;ISHIBASHI, MASATOSHI;AMANO, NORIO;TAKI, TAKESHI;HIRAI, TAKAAKI |
| 分类号 |
B29C44/22;B29C47/88;B29C70/08;C08J9/00 |
主分类号 |
B29C44/22 |
| 代理机构 |
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