发明名称 |
Process for flash-spinning dry polymeric plexifilamentary film-fibril strands |
摘要 |
An improved process for flash-spinning plexifilamentary film-fibril strands from fiber-forming polyolefins is provided. A polyolefin is mixed to form a solution of 18 to 33 percent polyolefin by weight of the solution, 42 to 73 perceny methylene chloride by weight of the solution and 9 to 25 percent carbon dioxide by weight of the solution. The mixture is then flash-spun into substantially dry plexifilamentary strands.
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申请公布号 |
US5043109(A) |
申请公布日期 |
1991.08.27 |
申请号 |
US19890382092 |
申请日期 |
1989.07.24 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
COATES, DON M.;HUVARD, GARY S.;SHIN, HYUNKOOK |
分类号 |
D01F6/46;D01D5/11;D01F6/04;D01F6/06;D01F6/48 |
主分类号 |
D01F6/46 |
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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