PRODUCTION OF LOW-SHRINKAGE NYLON MOLDINGS

    公开(公告)号:CA1233588A

    公开(公告)日:1988-03-01

    申请号:CA431957

    申请日:1983-07-06

    Applicant: BASF AG

    Abstract: Low shrinkage nylon moldings are produced by activated alkaline lactam polymerization, preferably using the reactive injection molding technique, by a process wherein the polymerization is carried out in the presence of from 5 to 80% by weight of a polymer P which 1. is completely soluble in the lactam, 2. separates out in the course of polymerization at a conversion of from 1 to 50%, 3. is composed of one or more blocks which are compatible with polylactam and one or more blocks which are incompatible therewith, and preferably 4. possesses functional groups which are incorporated into the growing polylactam chain.

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