TRADAR ELLER FIBRER AV EN BLANDNING AV BITUMEN OCH POLYPROPEN ELLER EN PROPENSAMPOLYMER SAMT FORFARANDE FOR FRAMSTELLNING DERAV

摘要

Filaments and fibers based on polypropylene or copolymers thereof having a content of from 10 to 90% by weight of bitumen and a process for their manufacture, in which a mixture based on polypropylene or copolymers thereof and containing from 10 to 90% by weight of bitumen is melt-spun and drawn. The filaments and fibers produced in the manner of the invention are suitable for the production of woven and non-woven fabrics for insulating purposes and carpet underlays.