| 发明名称 |
REGENERATED, HIGH MOLECULAR WEIGHT, THERMOPLASTIC RESINS AND PROCESS FOR REGENERATING THERMOPLASTIC RESINS |
| 摘要 |
<p>High molecular weight thermoplastic polyurethane resins with narrow molecular weight distribution and good physical properties are prepared by regenerating thermally degraded and/or off-grade thermoplastic polyurethane resins. The regenerated high molecular weight thermoplastic polyurethane resins do not present any processing difficulties inherent to high molecular weight resins. 37,226-F</p> |
| 申请公布号 |
CA2056776(A1) |
申请公布日期 |
1992.06.05 |
| 申请号 |
CA19912056776 |
申请日期 |
1991.12.03 |
| 申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
BONK, HENRY W.;CHEN, AUGUSTIN T.;EHRLICH, BENJAMIN S. |
| 分类号 |
B29C45/00;B29K75/00;B29K105/26;C08G18/12;C08J11/06;C08L75/00;C08L75/04;(IPC1-7):C08L75/04 |
主分类号 |
B29C45/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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