发明名称 |
Thermoplastic polyester series resin foamed material and production process thereof. |
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/cm<3> 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 |
EP0437094(A2) |
申请公布日期 |
1991.07.17 |
申请号 |
EP19900314265 |
申请日期 |
1990.12.24 |
申请人 |
SEKISUI KASEIHIN KOGYO KABUSHIKI KAISHA |
发明人 |
HAYASHI, MOTOSHIGE;AMANO, NORIO;TAKI, TAKESHI;ISHIBASHI, MASATOSHI;HIRAI, TAKAAKI |
分类号 |
B29C44/22;B29C47/88;B29C70/08;C08J9/00 |
主分类号 |
B29C44/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|