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    2.
    发明专利
    未知

    公开(公告)号：DE19519339A1

    公开(公告)日：1996-11-28

    申请号：DE19519339

    申请日：1995-05-26

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN DR ,  DETERING JUERGEN DR ,  STEIN STEFAN DR ,  BOECKH DIETER DR ,  JAEGER HANS-ULRICH DR

    IPC: C08F2/38 ,  C08F26/00 ,  C08F226/06 ,  C08L39/00 ,  C11D3/37 ,  C11D3/28

    Abstract: The invention concerns water-soluble copolymers obtained by the radically initiated solution polymerization of: a) between 10 and 99.5 wt % of at least one vinylimidazole of formula (I), in which R , R and R are identical or different and stand for H, C1 to C4 alkyl, monomers of formula (II), in which R and R are identical or different and stand for H, C1 to C4 alkyl or form with one another a ring of between 3 and 5 methylene groups, N-vinyloxazolidone, N-vinyltriazole, 4-vinylpyridine-N-oxide or mixtures of said monomers; b) between 0 and 89.5 wt% of other copolymerizable monoethylenically unsaturated monomers; and c) between 0.5 and 30 wt% of at least one monomer acting as cross-linking agent with at least two ethylenically unsaturated non-conjugated double bonds. The polymerization is carried out in water and/or polar organic solvents in the presence of polymerization control agents, between 0.1 and 5 parts by weight of polymerization control agents being used per 1 part by weight of cross-linking agent. The invention also concerns a process for preparing said copolymers by radically initiated solution polymerization of the monomers in the presence of polymerization control agents, and the use of the copolymers as additives for washing products.

    8.
    发明专利
    未知

    公开(公告)号：DE19532718A1

    公开(公告)日：1997-03-06

    申请号：DE19532718

    申请日：1995-09-05

    Applicant: BASF AG

    Inventor： STEIN STEFAN DR ,  BOECKH DIETER DR ,  SCHADE CHRISTIAN DR ,  ROESLER GERHARD

    IPC: C08F2/10 ,  C08F26/00 ,  C08F26/02 ,  C08F26/06 ,  C11D3/00 ,  C11D3/37

    Abstract: The invention concerns powdery porous polymers which contain N-vinylimidazol units and are obtained by the radically initiated polymerization in the manner of precipitation polymerization of: a) between 5 and 100 wt.% of at least one N-vinylimidazol of formula (I) in which R , R and R are identical or different and stand for H, C1 - C4 alkyl, monomers of formula (II), in which R and R are identical or different and stand for H, C1 - C4 alkyl or form with one another a ring comprising between 3 and 5 methylene groups, N-vinyloxazolidone, N-vinyltriazol, 4-vinylpyridine-N-oxide or a mixture of said monomers; b) between 0 and 95 wt.% of other copolymerizable monoethylenically unsaturated monomers; and c) between 0 and 50 wt.% of at least one monomer with at least two ethylenically unsaturated non-conjugated double bonds; in an aqueous solution which contains between 0.5 and 30 wt.% of at least one electrolyte and, relative to the monomers used, between 0.5 and 80 wt.% of at least one surfactant. The invention further concerns processes for their preparation and the use of the resultant powdery porous polymers containing N-vinylimidazol units as washing agent additives in order to inhibit dye-transfer during the washing process.

    10.
    发明专利
    未知

    公开(公告)号：AT196300T

    公开(公告)日：2000-09-15

    申请号：AT96120520

    申请日：1996-12-19

    Applicant: BASF AG

    Inventor： FUSSNEGGER BERNHARD DR ,  STEIN STEFAN DR

    IPC: B01D15/00 ,  B01J20/26 ,  C08F8/42 ,  C08F226/06 ,  C12H1/056

    Abstract: The complexes comprises heavy metal ions and a polymer containing 50-99.5 wt.% polymerised units of at least one basic vinylheterocyclic compound (I) with a pKa value of at least 3.8, and 0-49.5 wt.% units of other copolymerisable monomers (II), made in the absence of a polymerisation initiator and in the presence of 0.5-10 wt.% on monomers of a crosslinker (III).

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