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A PROCESS FOR FLASH-SPINNING DRY POLYMERIC PLEXIFILAMENTARY FILM-FIBRIL STRANDS
A PROCESS FOR FLASH-SPINNING DRY POLYMERIC PLEXIFILAMENTARY FILM-FIBRIL STRANDS
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机译:干法纺丝聚合物纤维薄膜原丝的纺丝工艺
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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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