90.
    发明专利
    未知

    公开(公告)号:AT281476T

    公开(公告)日:2004-11-15

    申请号:AT99942857

    申请日:1999-08-11

    Applicant: BASF AG

    Abstract: A process for the elimination of formamide from polymers containing N-vinylformamide units involves treating formamide-containing polymers with from 1 to 2 mol-equivalents of an acid or a base, based on 1 mol-equivalent of formamide, under reaction conditions such that the N-vinylformamide units in the polymer undergo virtually no hydrolysis.

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