21.
    发明专利
    未知

    公开(公告)号:DE59600640D1

    公开(公告)日:1998-11-12

    申请号:DE59600640

    申请日:1996-03-28

    Applicant: BASF AG

    Abstract: Aq. polymer dispersions (X) are prepd. by radical aq. emulsion polymerisation of a mixt. contg. at least one gp. of ethylenic unsatd. radical polymerisable monomers. The mixt. comprises 30 - 90 wt.% monomers (A) with a min. solubility of 5 wt.% in water at the chosen polymerisation temp. and pressure (w.r.t. mixt.) and 10 - 70 wt.% monomers (B) with solubility in water less than 5 wt.% under the same conditions. The mixt. contains no surfactant monomers (C). Some or all of the emulsion polymerisation takes place in a dispersant medium comprising water and an organic solvent (S) whose solubility in water is max. 10 wt.% under the above conditions. The dispersant comprises at least 20 wt.% (S) and there is sufficient (S) present to form aq. and organic phases, but the water / (S) mass ratio is not greater than 1 : 2. Also claimed are (i) the prepn. of (X) by the above method; and (ii) oil-in-water emulsions contg. (D).

    22.
    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

    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.

    23.
    发明专利
    未知

    公开(公告)号:DE19512882A1

    公开(公告)日:1996-10-10

    申请号:DE19512882

    申请日:1995-04-06

    Applicant: BASF AG

    Abstract: Aq. polymer dispersions (X) are prepd. by radical aq. emulsion polymerisation of a mixt. contg. at least one gp. of ethylenic unsatd. radical polymerisable monomers. The mixt. comprises 30 - 90 wt.% monomers (A) with a min. solubility of 5 wt.% in water at the chosen polymerisation temp. and pressure (w.r.t. mixt.) and 10 - 70 wt.% monomers (B) with solubility in water less than 5 wt.% under the same conditions. The mixt. contains no surfactant monomers (C). Some or all of the emulsion polymerisation takes place in a dispersant medium comprising water and an organic solvent (S) whose solubility in water is max. 10 wt.% under the above conditions. The dispersant comprises at least 20 wt.% (S) and there is sufficient (S) present to form aq. and organic phases, but the water / (S) mass ratio is not greater than 1 : 2. Also claimed are (i) the prepn. of (X) by the above method; and (ii) oil-in-water emulsions contg. (D).

    24.
    发明专利
    未知

    公开(公告)号:DE4443568A1

    公开(公告)日:1996-06-13

    申请号:DE4443568

    申请日:1994-12-07

    Applicant: BASF AG

    Abstract: Polymers (I), used in hair styling agents, are prepd. by radical-initiated copolymerisation of: (A) 5-50 wt.% (quat.) 1-vinyl imidazole; (B) 20-80 wt.% N-vinyl caprolactam; (C) 10-60 wt.% N-vinyl pyrrolidone; and (D) 0-30 wt.% additional radical copolymerisable monomer which forms a homopolymer with a Tg > 20 degrees C, with the proviso that the polymer is quaternised if (A) is 1-vinyl imidazole. Cosmetic hair and skin formulations contg. (I) as active ingredients are also claimed. Pref. (A) is 3-methyl-1-vinyl imidazolinium chloride or -methyl sulphate, or 3-ethyl-1-vinyl imidazolinium methyl sulphate. (D) is tert.-butyl acrylate. (I) is prepd. by copolymerisation of a mixt. comprising 10-30 wt.% 1-vinyl imidazole quaternised with di(m)ethyl sulphate as component (A), 40-60 wt.% (B), and 30-50 wt.% (C).

    29.
    发明专利
    未知

    公开(公告)号:DE4223066A1

    公开(公告)日:1994-01-20

    申请号:DE4223066

    申请日:1992-07-14

    Applicant: BASF AG

    Abstract: Hair treatment agents which contain copolymers as film formers which are obtainable by copolymerising: a) 30 to 80 wt % of an acrylic or methacrylic acid ester which, as a homopolymer, has a glass transition temperature of over 20 DEG C, or of mixtures of acrylic and methacrylic esters which, on copolymerisation, give copolymers with a glass transition temperature of over 20 DEG C; b) 5 to 25 wt % of acrylic acid, methacrylic acid or their mixtures, and c) 10 to 45 wt % of N-vinyl pyrrolidone, N-vinyl caprolactam or their mixtures, in the presence of polymerisation initiators forming radicals according to the precipitation polymerisation process, and the use of the copolymers thus obtainable as film formers in hair treatment agents.

    30.
    发明专利
    未知

    公开(公告)号:DE4213283A1

    公开(公告)日:1993-10-28

    申请号:DE4213283

    申请日:1992-04-23

    Applicant: BASF AG

    Abstract: The use of copolymers obtainable by the radically initiated polymerisation of A) 50 to 99.9 wt % of an olefinically unsaturated C3 to C5 monocarboxylic acid, an olefinically unsaturated C4 to C8 bicarboxylic acid or its anhydride, or a mixture of such carboxylic acids or carboxylic acid anhydrides with B) 0.1 to 50 wt % of one or more long-chained compounds with isolated multiple C-C bonds from the group (1) mono or polyunsaturated C8 to C30 monocarboxylic acids which may have additional hydroxyl groups and their alkaline metal and earth alkaline metal salts, alkyl esters, amides, sorbitane esters, glycerine esters and polyglycerine esters, (2) mono or polyunsaturated aliphatic C8 to C30 amines, (3) mono or polyunsaturated C8 to C30 alcohols and esters thereof with saturated C1 to C4 monocarboxylic acids, (4) to (C8 to C30 alkyl) vinyl ether which may incorporate up to 25 alkylene oxide units, and (5) final and medium-position C13 to C30 alkenes; C) 0 to 49.9 wt % of other copolymerisable monomers, and D) 0 to 10 wt % of one or more compounds with at least two olefinically unsaturated groups in the molecule as cross-linking agents, as thickening or dispersing agents, especially in cosmetic and pharmaceutical preparations.

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