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    83.
    发明专利
    未知

    公开(公告)号：DE502004002810D1

    公开(公告)日：2007-03-15

    申请号：DE502004002810

    申请日：2004-09-14

    Applicant: BASF AG

    Inventor： KLUEGLEIN MATTHIAS ,  LEHMANN BERNHARD ,  HUEFFER STEPHAN ,  GOFFING FRIEDRICH ,  SCHNEIDER TANJA ,  GUEMBEL HELMUT

    IPC: C08F8/12 ,  C08F222/08 ,  C08F267/00 ,  C08F267/04 ,  C08F283/06 ,  C08G65/329 ,  C08L51/00 ,  C08L51/08 ,  C11D3/37 ,  C14C3/22

    Abstract: A process for preparing copolymers which comprises copolymerizing (A) at least one ethylenically unsaturated dicarboxylic anhydride derived from at least one dicarboxylic acid having 4 to 8 carbon atoms, (B) at least one vinylaromatic compound, and (C) optionally at least one non-(A) ethylenically unsaturated comonomer containing at least one heteroatom, (D) reacting the copolymer with at least one compound of the formula I a or I b where A 1 is C 2 -C 20 alkylene, identical or different, R 1 is C 1 -C 30 alkyl, linear or branched, and n is an integer from 1 to 200, hydrolyzing the product with water or an aqueous alkaline solution, and subsequent to hydrolysis adding further free-radical initiator.

    84.
    发明专利
    未知

    公开(公告)号：DE102005032585A1

    公开(公告)日：2007-01-25

    申请号：DE102005032585

    申请日：2005-07-11

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  SCHROEDER STEFAN ,  LAMALLE PHILIPPE ,  BACH VOLKER

    IPC: C14C3/08 ,  C14C9/00

    Abstract: Process for the production of leather, wherein, after liming, deliming and, if appropriate, pickling, animal hides are pretanned or tanned with a mixture of compounds comprising (a) at least one organic tanning agent and (b) a mixture of (b1) at least one C3-C12-dicarboxylic acid (b2) and at least one further acidic compound selected from C1-C3-mono- or C3-C12-dicarboxylic acids, or salts thereof.

    85.
    发明专利
    未知

    公开(公告)号：BRPI0412691A

    公开(公告)日：2006-10-03

    申请号：BRPI0412691

    申请日：2004-07-03

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  WOLF GERHARD ,  KLUEGLEIN MATTHIAS ,  BECKER STEFAN

    IPC: C14C3/22 ,  C08F220/06

    Abstract: Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides; vinyl aromatic compound(s); alkoxylated unsaturated ether(s) (I); and optionally further monoethylenically unsaturated monomers. The copolymers (A) are new. Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: (1) one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides, (2) vinyl aromatic compound(s), (3) alkoxylated unsaturated ether(s) of formula (I) and optionally (4) further monoethylenically unsaturated monomers. [Image] R 1>- R 5>H or Me; R 6>H, SO 3M, PO 3M 2, CHO, (1-20C) alkylcarbonyl or (6-14C) arylcarbonyl; M : alkali metal, NH 4+>or Me; n : 3-100; y : 0-10. Independent claims are included for: (a) the polymers (A) as new; (b) the preparation of (A); and (c) aqueous dispersions containing up to 50 wt. % (A).

    Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water
    87.
    发明专利
    Producing aqueous copolymer dispersions, e.g. useful for treating leather, comprises copolymerizing an ethylenically unsaturated dicarboxylic acid anhydride and an alkene oligomer and adding water 未知

    公开(公告)号：DE10353557A1

    公开(公告)日：2005-06-16

    申请号：DE10353557

    申请日：2003-11-14

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  MIJOLOVIC DARIJO ,  VILL KARL ,  KLUEGLEIN MATTHIAS ,  WOLF GERHARD

    IPC: C08F222/02 ,  C08F222/04 ,  C14C9/00

    Abstract: Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol (Ia) or alkoxylated amine (Ib), and adding water. Producing aqueous copolymer dispersions with a water content of 30-99.5 wt.% comprises radical copolymerization of an ethylenically unsaturated dicarboxylic acid anhydride having 4-8 carbon atoms, an oligomer of an alkene having 3-10 carbon atoms, where the oligomer has a molecular weight of 300-5000 or is produced by oligomerising at least 3 equivalents of the alkene, and optionally an ethylenically unsaturated comonomer, optionally reacting the product with an alkoxylated alcohol of formula (Ia) or alkoxylated amine of formula (Ib), and adding water. HO(A 1>O) nR 1> (Ia) H 2N(A 1>O) nR 1> (Ib) A 1>2-20C alkylene; R 1>1-30C alkyl, phenyl or H; n : 1-200. Independent claims are also included for: (1) aqueous copolymer dispersions produced as above; (2) treatment of fibrous substrates using the dispersions; (3) fibrous substrates treated as above; (4) copolymers produced by radical copolymerization of an anhydride, oligomer and optional comonomer as above, reaction with (Ia) or (Ib) and optional hydrolysis; (5) impregnating flat substrates with dispersions or copolymers as above.

    90.
    发明专利
    未知

    公开(公告)号：DE10336452A1

    公开(公告)日：2005-03-03

    申请号：DE10336452

    申请日：2003-08-06

    Applicant: BASF AG

    Inventor： WOLF GERHARD ,  HUEFFER STEPHAN ,  DECKER JUERGEN ,  SCHERR GUENTER ,  REESE OLIVER

    IPC: C08G59/10 ,  C14C11/00 ,  C08G73/02

    Abstract: An epichlorohydrinamine polymer has a ratio of amine units to epichlorohydrin units of from 0.8:1.2 to 1.0:1.0, dimethylaminopropylamine and benzylamine preferably being used as amine and/or ammonium units. The novel epichlorohydrinamine polymer is used, for example, for the surface treatment of semifinished leather products and textile materials.

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