133.
    发明专利
    未知

    公开(公告)号:ES2124627T3

    公开(公告)日:1999-02-01

    申请号:ES96901803

    申请日:1996-02-10

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00575 Sec. 371 Date Aug. 19, 1997 Sec. 102(e) Date Aug. 19, 1997 PCT Filed Feb. 10, 1996 PCT Pub. No. WO96/26229 PCT Pub. Date Aug. 29, 1996Agglomerated, finely divided, crosslinked vinylimidazole copolymers obtainable by free-radically initiated polymerization of N-vinylimidazoles of the formula (I) where R, R1 and R2 are identical or different and each is H, C1-C4-alkyl or phenyl, with at least one crosslinker, optionally other water-soluble monoethylenically unsaturated monomers, and optionally water-insoluble monoethylenically unsaturated monomers in the aqueous phase of a water-in-oil emulsion in the presence of at least one emulsifier comprising block copolymers of the type AB or ABA or comb copolymers constructed from A and B, where A is a hydrophobic polymer block having a molecular weight of >500 g/mol and B is a hydrophilic polymer block having a molecular weight of >500 g/mol, to stabilize the water-in-oil monomer emulsion, azeotropic distillative removal of the water from the water-in-oil polymer suspension, and isolation of the polymers, processes for preparing said agglomerated, finely divided, crosslinked vinylimidazole copolymers, and use of the copolymers in detergents to inhibit the transfer of dye during the wash.

    136.
    发明专利
    未知

    公开(公告)号:DK0731813T3

    公开(公告)日:1997-12-08

    申请号:DK95901415

    申请日:1994-11-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03868 Sec. 371 Date May 20, 1996 Sec. 102(e) Date May 20, 1996 PCT Filed Nov. 23, 1994 PCT Pub. No. WO95/15345 PCT Pub. Date Jun. 8, 1995Polymers of alkyl-1-vinylimidazoles, a process for preparing polymers of alkyl-1-vinylimidazoles by free-radical polymerization of a monomer mixture comprising (a) 10-100% by weight of at least one alkyl-1-vinylimidazole and (b) 0-90% by weight of 1-vinylpyrrolidone, 1-vinylcaprolactam, 1-vinyltriazole, 1-vinylimidazole, 1-vinyloxazolidinone or mixtures thereof, (c) 0-30% by weight of other monoethylenically unsaturated monomers and (d) 0-10% by weight of a monomer containing at least 2 monoethylenic double bonds in water, at least one C1-C4-alcohol or mixtures thereof, and the use of polymers which comprise at least 10% by weight of an alkyl-1-vinylimidazole as copolymerized unit as additive to detergents to inhibit transfer of dyes during the washing process.

    137.
    发明专利
    未知

    公开(公告)号:ES2102068T3

    公开(公告)日:1997-07-16

    申请号:ES93923472

    申请日:1993-10-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/02851 Sec. 371 Date Apr. 21, 1995 Sec. 102(e) Date Apr. 21, 1995 PCT Filed Oct. 15, 1993 PCT Pub. No. WO94/10281 PCT Pub. Date May 11, 1994There are described the use of copolymers obtainable by free-radically initiated copolymerization of monomer mixtures comprising (a) 60-99% by weight of 1-vinylpyrrolidone, 1-vinylimidazole or mixtures thereof, (b) 1-40% by weight of nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of salts or in quaternized form, and optionally (c) up to 20% by weight of other monoethylenically unsaturated monomers, as detergent additives for inhibiting dye transfer during the wash, detergents which contain such polymers, and polymers which are obtainable by free-radically initiated polymerization of (a) 1-vinylpyrrolidone, 1-vinylimidazole, 1-vinylimidazolium compounds, or mixtures thereof, and optionally (b) other nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of the salts or in quaternized form, and/or (c) other monoethylenically unsaturated monomers, in an aqueous medium in the presence of water-soluble proteins and a process for the preparation of the polymers by polymerising the monomers (a) and optionally (b) and/or (c) in an aqueous medium in the presence of water-soluble proteins using from 0.5 to 400 parts by weight of protein per 100 parts by weight of monomer used in the polymerization.

    139.
    发明专利
    未知

    公开(公告)号:AT154385T

    公开(公告)日:1997-06-15

    申请号:AT93923472

    申请日:1993-10-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/02851 Sec. 371 Date Apr. 21, 1995 Sec. 102(e) Date Apr. 21, 1995 PCT Filed Oct. 15, 1993 PCT Pub. No. WO94/10281 PCT Pub. Date May 11, 1994There are described the use of copolymers obtainable by free-radically initiated copolymerization of monomer mixtures comprising (a) 60-99% by weight of 1-vinylpyrrolidone, 1-vinylimidazole or mixtures thereof, (b) 1-40% by weight of nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of salts or in quaternized form, and optionally (c) up to 20% by weight of other monoethylenically unsaturated monomers, as detergent additives for inhibiting dye transfer during the wash, detergents which contain such polymers, and polymers which are obtainable by free-radically initiated polymerization of (a) 1-vinylpyrrolidone, 1-vinylimidazole, 1-vinylimidazolium compounds, or mixtures thereof, and optionally (b) other nitrogen-containing, basic ethylenically unsaturated monomers in the form of the free bases, in the form of the salts or in quaternized form, and/or (c) other monoethylenically unsaturated monomers, in an aqueous medium in the presence of water-soluble proteins and a process for the preparation of the polymers by polymerising the monomers (a) and optionally (b) and/or (c) in an aqueous medium in the presence of water-soluble proteins using from 0.5 to 400 parts by weight of protein per 100 parts by weight of monomer used in the polymerization.

    WATER-SOLUBLE COPOLYMERS CONTAINING POLYMERIZED-IN CROSS-LINKING AGENTS, PROCESS FOR THEIR PREPARATION AND THEIR USE

    公开(公告)号:CA2217336A1

    公开(公告)日:1996-11-28

    申请号:CA2217336

    申请日:1996-05-21

    Applicant: BASF AG

    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 R1, R2 and R3 are identical or different and stand for H, C1 to C4 alkyl, monomers of formula (II), in which R4 and R5 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, Nvinyloxazolidone, 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 nonconjugated 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.

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