发明名称 |
Uniform small cell foams and a continuous process for making same |
摘要 |
A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.
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申请公布号 |
US6593380(B2) |
申请公布日期 |
2003.07.15 |
申请号 |
US20010994418 |
申请日期 |
2001.11.27 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
GEHLSEN MARK DAVID;VALL DAVID LOREN;PERMAN CRAIG ALLEN;ALBRECHT BONNIE WEISKOPF |
分类号 |
C08J9/12;B29C44/34;B29C47/06;B29C47/36;B29C47/86;B29K101/12;B29K105/04;B29L9/00;C09J201/00;(IPC1-7):C08J9/12 |
主分类号 |
C08J9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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