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    51.
    发明专利
    未知

    公开(公告)号：DE19512883A1

    公开(公告)日：1996-10-10

    申请号：DE19512883

    申请日：1995-04-06

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN DR

    IPC: C08F2/00 ,  C08F2/06 ,  C08F2/22 ,  C09K23/52 ,  C08F6/14 ,  C08F6/10 ,  B01F17/52

    Abstract: Aq. polymer dispersions (X) 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 less than 10 wt.% under the above conditions. The water / (S) mass ratio is not greater than 1 : 2, but sufficient to form aq. and organic phases. Also claimed are (i) the prepn. of (X) by the above method is also claimed and (ii) oil-in-water emulsions contg. (D).

    Crosslinked N-vinyl]-imidazolium salt polymers
    54.
    发明专利
    Crosslinked N-vinyl]-imidazolium salt polymers 未知

    公开(公告)号：DE4301801A1

    公开(公告)日：1994-07-28

    申请号：DE4301801

    申请日：1993-01-23

    Applicant: BASF AG

    Inventor： SCHADE CHRISTIAN DR ,  DETERING JUERGEN DR ,  SANNER AXEL DR

    IPC: A61K47/48 ,  C08F226/06 ,  C08F26/06 ,  C08F271/02

    Abstract: New crosslinked polymers (I) contg. polymerised N-vinyl-imidazolium salts of formula (II) contain at least 5 wt.% of polymerised hydrophilic monomer(s) and at least 1 wt.% of polymerised hydrophobic monomer(s): where R = 1-22C alkyl or benzyl or 2-phenylethyl opt. ring substd. by 1-3 Me gps.; R1 = H, 1-3C alkyl or phenyl, X = an anion.Also claimed are (a) cholesterol-lowering compsns. contg. (I) as active ingredient and (b) a process for selective adsorption of organic anions with a molecular wt. above 100 using (I) or a cholesterol-lowering compsn. as above.

    55.
    发明专利
    未知

    公开(公告)号：DE4244386A1

    公开(公告)日：1994-06-30

    申请号：DE4244386

    申请日：1992-12-29

    Applicant: BASF AG

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

    IPC: C08F226/06 ,  C08F279/00 ,  C08F279/02 ,  C08F283/00 ,  C08F283/01 ,  C08F283/12 ,  C08F290/00 ,  C08F290/04 ,  C08F290/06 ,  C08F291/00 ,  C08L25/08 ,  C08L39/00 ,  C08L39/06 ,  C08L51/00 ,  C08L51/04 ,  C08L51/08 ,  C08L55/00 ,  C11D3/00 ,  C11D3/37

    Abstract: PCT No. PCT/EP93/03598 Sec. 371 Date Jun. 21, 1995 Sec. 102(e) Date Jun. 21, 1995 PCT Filed Dec. 17, 1993 PCT Pub. No. WO94/14861 PCT Pub. Date Jul. 7, 1994Copolymers which are obtainable by free radical copolymerization of a mixture of (a) from 20 to 95% by weight of 1-vinylpyrrolidone, a 1-vinylimidazole or a mixture of 1-vinylpyrrolidone and/or 1-vinylimidazoles which may contain up to 20% by weight of other monoethylenically unsaturated monomers and (b) from 5 to 80% by weight of water-insoluble polymers which contain at least one ethylenically unsaturated double bond and/or one mercapto group in the molecule, processes for the preparation of the copolymers by copolymerization of the compounds of groups (a) and (b) in the abovementioned amounts in water, an alcohol, an ester or a ketone in the presence of free radical initiators, and the use of the copolymers thus obtainable and of copolymers of from 20 to 95% by weight of 1-vinylpyrrolidone or a mixture of 1-vinylpyrrolidone with up to 20% by weight of other monoethylenically unsaturated monomers and from 10 to 80% by weight of styrene as additives for detergents for inhibiting the dye transfer during the wash process, and detergents which contain the stated copolymers.

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