134.
    发明专利
    未知

    公开(公告)号:DE59502580D1

    公开(公告)日:1998-07-23

    申请号:DE59502580

    申请日:1995-10-20

    Applicant: BASF AG

    Abstract: Copolymers (I) with K values of 30-50, obtainable by radical polymerisation of a monomer mixt. as follows in alcohol soln.: (a) 15-84.99 wt.% N-vinylpyrrolidone (NVP), N-vinyl-caprolactam (NVC) and/or N-vinylimidazole; (b) 15-84.99 wt.% other monoethylenically unsatd. monomers; and (c) 0.01-2 wt.% monomers with at least two non-conjugated olefinic double bonds.

Patent Agency Ranking