Solutions for flash-spinning dry polymeric plexifilamentary film-fibril strands

摘要

Solutions for flash-spinning substantially dry plexifilamentary film-fibril strands from fiber-forming polyolefins. The solutions comprise a mixture of 18 to 33 percent polyolefin by weight of the solution, 42 to 73 percent methylene chloride by weight of the solution and 9 to 25 percent carbon dioxide by weight of the solution.