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    41.
    发明专利
    未知

    公开(公告)号：DE4235798A1

    公开(公告)日：1994-04-28

    申请号：DE4235798

    申请日：1992-10-23

    Applicant: BASF AG

    Inventor： DETERING JUERGEN DR ,  SCHADE CHRISTIAN DR ,  TRIESELT WOLFGANG DR ,  TROPSCH JUERGEN DR

    IPC: C08F2/10 ,  C08F26/00 ,  C08F26/10 ,  C08F226/06 ,  C08F226/10 ,  C08F289/00 ,  C11D3/00 ,  C11D3/37

    Abstract: Copolymers may be produced by radical-initiated copolymerisation of monomer mixtures composed of (a) 60 to 99 % by weight 1-vinylpyrrolidone, 1-vinylimidazole or their mixtures; (b) 1 to 40 % by weight nitrogenated, basic, ethylenically unsaturated monomers as free bases, salts or in quaternary form and if required (c) up to 20 % by weight of other monoethylenically unsaturated monomers. These copolymers are used as additives for washing agents to inhibit fading during washing. Also disclosed are washing agents containing such polymers, as well as polymers which may be produced by radical-initiated polymerisation of (a) 1-vinylpyrrolidone, 1-vinylimidazole, 1-vinylimidazolium compounds or their mixtures and if required (b) other nitrogenated, basic, ethylenically unsaturated monomers as free bases, salts or in quaternary form, and/or (c) other monoethylenically unsaturated monomers, in an aqueous medium in the presence of water-soluble proteins. A process is disclosed for preparing these polymers by polymerisation of the monomers (a) and if required (b) and/or (c) in an aqueous medium in the presence of water-soluble proteins. For 100 parts by weight of the monomers used for polymerisation, 0.5 to 400 parts by weight of proteins are used.

    43.
    发明专利
    未知

    公开(公告)号：DE4213971A1

    公开(公告)日：1993-11-04

    申请号：DE4213971

    申请日：1992-04-29

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN DR ,  SANNER AXEL DR ,  WEKEL HANS-ULRICH DR ,  FROSCH FRANZ DR ,  WESTENFELDER HORST

    IPC: A61K8/72 ,  A61K8/06 ,  A61K8/81 ,  C08F20/02 ,  C08F20/34 ,  C08F20/52 ,  C08F220/04 ,  C08F220/34 ,  C08F220/58 ,  C08F220/60 ,  C08F222/00 ,  C08F222/02 ,  C09K23/52 ,  C08F222/04 ,  C08F226/06 ,  B01F17/52 ,  A61K9/10

    Abstract: A copolymer obtainable by free-radical polymerization ofA) 50-99.99% by weight of an olefinically unsaturated C3-C5 monocarboxylic acid, of an olefinically unsaturated C4-C8 dicarboxylic acid or the anhydride thereof or a mixture of such carboxylic acids or anhydrides withB) 0.01-50% by weight of an olefinically unsaturated quaternary ammonium compound of the formula I or II whereR1 is C6-C20-alkyl, C6-C20-alkenyl, C5-C8-cycloalkyl, phenyl, phenyl(C1-C12-alkyl) or (C1-C12-alkyl)phenyl,R2 is hydrogen, methyl or phenyl,R3 and R4 are each H or C1-C4-alkyl,X is halogen, C1-C4-alkoxysulfonyloxy or C1-C4-alkanesulfonate, it also being possible for the latter to occur as R3 or R4 with the formation of a betaine structure,Y is O or NH, andA is C1-C6-alkylene, or a mixture of such ammonium compounds,C) 0 to 49.99% by weight of an acrylate or methacrylate of the formula III where R1, R2 and Y have the abovementioned meanings, R5 is hydrogen, methyl or ethyl, and n is a number from 0 to 25,D) 0-49.99% by weight of other copolymerizable monomers andE) 0-5% by weight of one or more compounds with at least two olefinically unsaturated groups in the molecule as crosslinker. The copolymers are suitable as thickeners and dispersants, especially in cosmetic compositions.

    46.
    发明专利
    未知

    公开(公告)号：DE19709117A1

    公开(公告)日：1998-09-10

    申请号：DE19709117

    申请日：1997-03-06

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN DR ,  NEUMANN RAINER DR

    IPC: C08L33/20 ,  C08F283/12 ,  C08K5/06 ,  C08K5/54 ,  C08L25/06 ,  C08L25/16 ,  C08L55/02 ,  C08K5/10 ,  C08J5/00 ,  C08J3/20

    Abstract: Thermoplastic moulding materials with reduced tendency to yellowing are obtained by (i) polymerising a monomer mixture A which contains (in relation to A): (a1) 1 to 100 % by weight acrylonitrile and (a2) 0 to 99 % by weight of one or several monomers which can be copolymerised with acrylonitrile, in the presence of 0.01 to 5 % by weight (in relation to the monomer mixture A), of an additive B which contains: (b1) at least one compound containing at least one silicon-hydrogen bond ("silyl hydrides"); (b2) orthocarbonates, orthocarboxylic acid esters or orthosilicates ("ortho compounds"), or mixtures of said ortho compounds; or (b3) mixtures of silyl hydrides (b1) and ortho compounds (b2); or by (ii) adding 0.01 to 5 % by weight (in relation to the monomer mixture A) of additive B when subsequently processing the polymers which correspond to the monomer mixture A.

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