102.
    发明专利
    未知

    公开(公告)号:FI964647A0

    公开(公告)日:1996-11-21

    申请号:FI964647

    申请日:1996-11-21

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/01818 Sec. 371 Date Nov. 21, 1996 Sec. 102(e) Date Nov. 21, 1996 PCT Filed May 13, 1995 PCT Pub. No. WO95/32227 PCT Pub. Date Nov. 30, 1995A process for the preparation of a stable water-in-oil emulsion of a hydrolyzed polymer of an N-vinyl amide of the formula (I) in which R and R1 denote H or C1-C6 alkyl, by the polymerization of a compound of the formula I alone or in admixture with another ethylenically unsaturated monomer in the presence of a polymerization initiator and emulsifier in the form of a water-in-oil emulsion, to form a water-in-oil polymeric emulsion, followed by hydrolysis of the polymer in the form of the water-in-oil polymeric emulsion in the presence of an acid or base and from 1 to 30 wt %, based on the polymer, of an emulsifier, the emulsifier used being a mixture of (a) from 5 to 95 wt % of a block or graft copolymer of the structure (A-B)m, (A)-B or (B)-A, in which in each case (a) from 5 to 95 wt % of a block or graft copolymer of the structure (A-B)m, (A)nB or (B)nA, in which in each case A is a hydrophobic homopolymer or copolymer having a degree of polymerization of at least 3, B is a hydrophilic homopolymer or copolymer having a degree of polymerization of at least 3, m is equal to or greater than 1, and n is equal to or greater than 2, and (b) from 5 to 95 wt % of another water-in-oil emulsifier having a molar mass below 1000 g/mol.

    USE OF POLYMERS AS BIOCIDES
    106.
    发明专利

    公开(公告)号:HU227055B1

    公开(公告)日:2010-05-28

    申请号:HU9902557

    申请日:1997-03-04

    Applicant: BASF AG

    Abstract: The use of polymers (I) as biocides is new, where (I) comprises: (a) 0.1-100 mol. % vinylamine (VA) or ethyleneimine units; (b) 0-99.9 mol.% units derived from at least one monomer selected from N-vinylcarboxamides of formula CH2=CH-N(R1)-CO-R2 (II), vinyl formate, vinyl acetate, vinyl propionate, vinyl alcohol, (1-6C) alkyl-vinyl ethers, monoethylenically unsaturated 3-8C carboxylic acids, or their esters, nitriles, amides and anhydrides, N-vinylurea, N-vinylimidazoles and N-vinylimidazolines; and (c) 0-5 mol.% units derived from monomers with at least two ethylenically unsaturated double bonds. The sum of (a)-(c) is 100 mol.%. R1, R2 = H or 1-6C alkyl.

    USE OF POLYMERS AS BIOCIDE
    107.
    发明专利

    公开(公告)号:CA2248154C

    公开(公告)日:2006-07-11

    申请号:CA2248154

    申请日:1997-03-04

    Applicant: BASF AG

    Abstract: The invention concerns the use as biocides of polymers which contain the following incorporated by polymerization: (a) between 0.1 and 100 mol % vinyl amine units or ethylene imine units; (b) between 0 and 99.9 mol % units of at least one monomer selected from the group comprising open-chain N-vinyl carboxylic acid amides, vinyl formiate, vinyl acetate, vinyl propionate, vinyl alcohol, C1 to C6 alkyl vinyl ether, monoethylenically unsaturated C3 to C8 carboxylic acids, their esters, nitriles, amides and anhydrides, N-vinyl urea, N-vinyl imidazoles and N-vinyl imidazolines; and (c) between 0 and 5 mol % units of monomers having at least two ethylenically unsaturated double bonds. The total of (a), (b) and (c) in mol % is always 100.

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