4.
    发明专利
    未知

    公开(公告)号:DE50207746D1

    公开(公告)日:2006-09-14

    申请号:DE50207746

    申请日:2002-11-11

    Applicant: BASF AG

    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed from copolymers of two different monoethylenically unsaturated monomers (B1) and (B2) which each contain at least one nitrogeneous heterocycle, wherein said side chains (B) account for from 35 to 55% by weight of the total polymer.

    9.
    发明专利
    未知

    公开(公告)号:DE10156134A1

    公开(公告)日:2003-05-28

    申请号:DE10156134

    申请日:2001-11-16

    Applicant: BASF AG

    Abstract: Graft polymer comprising (A) a polymeric graft skeleton, with no monoethylenic unsaturated units and (B) polymer sidechains formed by polymerisation of a cyclic N-vinylamide of general formula I, where R = C1-C5 alkyl and R = H or C1-C4 alkyl, wherein the proportion of the sidechains (B) comprises >/= 60 wt. % of the total polymer.

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