2.
    发明专利
    未知

    公开(公告)号:SE7505918L

    公开(公告)日:1975-12-01

    申请号:SE7505918

    申请日:1975-05-23

    Applicant: BASF AG

    Abstract: 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.

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