发明授权
- 专利标题： Filaments and fibers and their manufacture
- 专利标题（中）： 丝和纤维及其制造
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申请号： US573164申请日： 1975-04-30
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公开(公告)号： US3992341A公开(公告)日： 1976-11-16
- 发明人: Gerhard Zeitler , Heinz Mueller-Tamm
- 申请人： Gerhard Zeitler , Heinz Mueller-Tamm
- 申请人地址： DT Ludwigshafen (Rhine)
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DT Ludwigshafen (Rhine)
- 优先权： DT2425665 19740528
- 主分类号： C08L23/00
- IPC分类号： C08L23/00 ; C08L7/00 ; C08L21/00 ; C08L95/00 ; C08L101/00 ; D01F1/10 ; D01F6/04 ; D01F6/46
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.