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    71.
    发明专利
    未知

    公开(公告)号：DE19519337A1

    公开(公告)日：1996-11-28

    申请号：DE19519337

    申请日：1995-05-26

    Applicant: BASF AG

    Inventor： BOECKH DIETER DR ,  JAEGER HANS-ULRICH DR ,  FUNHOFF ANGELIKA DR ,  SCHADE CHRISTIAN DR ,  STEIN STEFAN DR

    IPC: C11D3/00 ,  C11D3/37 ,  C11D1/83

    Abstract: The disclosure relates to the use of water-insoluble cross linked polymers containing either (a) units of 1-vinyl pyrrolidone and/or 1-vinyl imidazoles of formula (I), in which R, R and R are identical or different and stand for H, C1-C4 alkyl or phenyl, or (b) units of 4-vinyl-pyridine-N-oxide incorporated by polymerisation, in either case in the form of fine particles, at least 90 wt % of the polymers having a particle size of between 0.1 and 500 mu m. The proposed cross-linked polymers are intended for use as additives for detergents containing a bleaching agent and having an alkyl benzene sulphonates content of not more than 8 wt.%, with the aim of preventing dye transfer during washing. Also disclosed are detergents containing water-insoluble cross-linked polymers in quantities of between 0.05 and 10 wt.%.

    76.
    发明专利
    未知

    公开(公告)号：DE3872302D1

    公开(公告)日：1992-07-30

    申请号：DE3872302

    申请日：1988-04-14

    Applicant: BASF AG

    Inventor： SEELMANN-EGGEBERT HANS-PETER D ,  BOECKH DIETER DR ,  HARTMANN HEINRICH DR ,  TRIESELT WOLFGANG DR ,  KUD ALEXANDER DR

    IPC: A01C1/06 ,  A01N25/26 ,  C08F2/10 ,  C08F20/10 ,  C08F220/04 ,  C08F220/20 ,  C08F290/00 ,  C08F299/00 ,  C08L101/16

    Abstract: Water-sol. copolymer (A) having K value 15-120 (measured by the method of Fikentscher on an aq. soln. of 1 wt.% Na salt at 25 deg.C and pH 7) comprises (mole.%) (a) 99.5-80% at least one monoethylenically unsatd. 3-6C monocarboxylic acid (I); (b) 0.5-20% at least one comonomer (II) with at least 2 ethylenic unsatd. but non-conjugated double bonds and (c) 0-30% other, copolymerisable, water-sol., monoethylenically unsatd. monomers (III). The copolymer consists of segments derived from (I) and (III) of mol. wt. not over 15,000, bonded together by (II) units. (II) are esters prepd. from (1) a (I) and (2) a polyhydric 2-6C alcohol; water-sol. or -insol. polyalkylene glycol of mol. wt. up to 400; water-sol. polyalkylene glycol of mol. wt. over 400-10,000; polyglycerols of mol. wt. up to 2000; polyvinyl alcohols of mol. wt. up to 10,000, and monovalent monoethylenically unsatd. 3-6C alcohols. Specifically, the acid component of (II) is (meth) acrylic acid; crotonic acid, vinylacetic acid and/or methacrylic anhydride, and the (I) segments are of mol. wt. 300-8000.

    80.
    发明专利
    未知

    公开(公告)号：DE3913127A1

    公开(公告)日：1990-10-25

    申请号：DE3913127

    申请日：1989-04-21

    Applicant: BASF AG

    Inventor： BOECKH DIETER DR ,  SEELMANN-EGGEBERT HANS-PETER D ,  HARTMANN HEINRICH DR ,  TRIESELT WOLFGANG DR ,  KUD ALEXANDER DR

    IPC: C08F2/06 ,  C08F8/12 ,  C08F216/36 ,  C08F222/06 ,  C11D3/37

    Abstract: Copolymerizates are formed by polymerization of the characteristic monomers (a) 10 to 60 mol. % of monoethylenically unsaturated dicarboxylic acid anhydrides with 4 to 8 carbon atoms, (b) 5 to 60 mol. % of diketens and (c) 0.5 to 60 mol. % of at least one monoethylenically unsaturated C3 to C8 monocarboxylic acid and in the hydrolysed form have K-values of 15 to 120 (determined by the H. Fikentscher method in aqueous solution at 25 DEG C, pH 7 and a concentration of the sodium salt of the copolymerizate of 2 wt. %). The invention also relates to a method for producing the copolymerizates by copolymerization of the monomers of groups (a), (b) and (c) in inert solvents in the presence of polymerization initiators at elevated temperatures and isolation of the copolymerizates or, if necessary, solvolysis. The use of the copolymerizates as additives in powdered or liquid detergents in amounts of 0.1 to 15 wt. % is also described.

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