| 发明名称 |
APPARATUS AND METHOD FOR EXTRUDING FOAMED POLYMERIC MATERIALS |
| 摘要 |
<p>Cellular chlorinated polyvinyl chloride resin is made in an extruder that is characterized by a combination of multiple flights and a plurality of open slots in the mixing section to facilitate mixing of the resin and a blowing agent whereby a rigid thermoplastic cellular product of low density is made that has a predominantly closed cell structure.</p> |
| 申请公布号 |
DE3262637(D1) |
申请公布日期 |
1985.04.25 |
| 申请号 |
DE19823262637 |
申请日期 |
1982.06.15 |
| 申请人 |
THE B.F. GOODRICH COMPANY |
发明人 |
NEHMEY, SAM DONALD;SUMMERS, JAMES WILLIAM |
| 分类号 |
B29C47/60;B29B7/00;B29C44/34;B29C47/00;B29C47/64;B29C47/78;B29C47/92;B29K105/04 |
主分类号 |
B29C47/60 |
| 代理机构 |
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代理人 |
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| 主权项 |
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