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    94.
    发明专利
    未知

    公开(公告)号：NO984092D0

    公开(公告)日：1998-09-04

    申请号：NO984092

    申请日：1998-09-04

    Applicant: BASF AG

    Inventor： GEBHARDT NORBERT ,  ZELLER DIETER ,  NILZ CLAUDIA ,  STEUERLE ULRICH ,  JOHANSEN CHARLOTTE

    IPC: A01N25/10 ,  A01N25/04 ,  A01N33/04 ,  A01N37/18 ,  A01N37/34 ,  A01N43/50 ,  A01N61/00 ,  A01N

    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.

    95.
    发明专利
    未知

    公开(公告)号：ES2112050T3

    公开(公告)日：1998-03-16

    申请号：ES95912254

    申请日：1995-03-20

    Applicant: BASF AG

    Inventor： NILZ CLAUDIA ,  WINTER MANFRED ,  KRONER MICHAEL ,  STANGE ANDREAS ,  SCHUHMACHER RUDOLF

    IPC: C08F8/12 ,  D21H17/34 ,  D21H21/18 ,  D21H21/20

    Abstract: PCT No. PCT/EP95/01030 Sec. 371 Date Sep. 30, 1996 Sec. 102(e) Date Sep. 30, 1996 PCT Filed Mar. 20, 1995 PCT Pub. No. WO95/26989 PCT Pub. Date Oct. 12, 1995Solutions of polymers containing vinylamine units, which solutions have a long shelf life, are prepared by hydrolyzing polymers containing N-vinylcarboxamide units with acids in an aqueous medium and removing the carboxylic acids eliminated from the polymers as esters from the aqueous polymer solution after the hydrolysis by adding at least stoichiometric amounts of at least one C1-C6-alcohol and distilling off the esters from the reaction mixture, and said aqueous solutions are used as dry and wet strength agents in papermaking.

    USE OF POLYMERS AS BIOCIDE
    96.
    发明专利
    USE OF POLYMERS AS BIOCIDE 未知

    公开(公告)号：CA2248154A1

    公开(公告)日：1997-09-12

    申请号：CA2248154

    申请日：1997-03-04

    Applicant: BASF AG

    Inventor： GEBHARDT NORBERT ,  STEUERLE ULRICH ,  ZELLER DIETER ,  NILZ CLAUDIA ,  JOHANSEN CHARLOTTE

    IPC: A01N25/04 ,  A01N25/10 ,  A01N33/04 ,  A01N37/18 ,  A01N37/34 ,  A01N43/50 ,  A01N61/00 ,  A01N37/02 ,  A01N37/06 ,  A01N47/28

    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.

    100.
    发明专利
    未知

    公开(公告)号：ES2096437T3

    公开(公告)日：1997-03-01

    申请号：ES94900084

    申请日：1993-10-29

    Applicant: BASF AG

    Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  NILZ CLAUDIA

    IPC: C08F8/00 ,  B01D15/04 ,  B01J20/26 ,  B01J39/20 ,  C08F226/02

    Abstract: PCT No. PCT/EP93/03019 Sec. 371 Date Apr. 25, 1995 Sec. 102(e) Date Apr. 25, 1995 PCT Filed Oct. 29, 1993 PCT Pub. No. WO94/11408 PCT Pub. Date May 26, 1994Abstract of the Disclosure: Insoluble, only slightly swellable polymers containing amino groups, which can be obtained from popcorn polymers containing units of the structure (I) where R and R1 are H or C1-C4-alkyl, by eliminating the group R-CO- from at least 2% of the incorporated units of the structure I, with the formation of units of the structure II (II) a process for the preparation of the amino-containing popcorn polymers by polymerizing N-vinylcarboxamides and, if desired, other monoethylenically unsaturated monomers copolymerizable therewith with from 0.1 to 10% by weight, based on the monomers used in the polymerization, of a compound containing at least two ethylenically unsaturated non-conjugated double bonds as crosslinking agent, with exclusion of oxygen and polymerization initiators, to form popcorn polymers, and elimination of formyl groups from at least 2% of the copolymerized N-vinylcarboxamides, and the use of the resulting insoluble, only slightly swellable polymers containing amino groups as ion exchangers or adsorber resins for metal ions are described.

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