12.
    发明专利
    未知

    公开(公告)号:DE3903537A1

    公开(公告)日:1990-08-09

    申请号:DE3903537

    申请日:1989-02-07

    Applicant: BASF AG

    Abstract: Low-temperature impact-resistant, thermoplastic polyurethane elastomer compositions having good flow properties and comprising A) from 5 to 95 parts by weight of at least one thermoplastic polyurethane elastomer (A) having a Shore A hardness of less than 95 and B) from 95 to 5 parts by weight of at least one thermoplastic polyurethane elastomer (B) having a Shore A hardness of greater than 98, the parts by weight of (A) and (B) adding up to 100 parts by weight, and C) from 0 to 60 % by weight, based on the weight of (A) and (B), of a reinforcing filler, are prepared by melting together the polyurethane elastomers (A) and (B) at temperatures of from 140 to 250 DEG C, preferably in an extruder, and are particularly suitable for the production of ski boots and injection mouldings for motor vehicles.

    18.
    发明专利
    未知

    公开(公告)号:ES2081881T3

    公开(公告)日:1996-03-16

    申请号:ES90115297

    申请日:1990-08-09

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of reinforced, impact-modified thermoplastic molding compositions which contain, based on 100 parts by weight, A) from 30 to 93 parts by weight of one or more thermoplastics from the group comprising the polyamides, polyesters, polycarbonates and polyphenylene ethers, B) from 5 to 50 parts by weight of fibers, preferably glass fibers, and C) from 2 to 20 parts by weight of one or more impact-modifying rubbers, in which process the fibers (B) are first introduced into the melt of the thermoplastic (A), components (A) and (B) are mixed, the rubber (C) is then introduced into the resultant mixture in the melt, and the resultant molding composition is extruded and granulated, wherein the reaction is carried out in one step, expediently at a constant temperature in the range of, advantageously, from 250 DEG to 300 DEG C.

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