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    42.
    发明专利
    未知

    公开(公告)号：BR0315272A

    公开(公告)日：2005-08-23

    申请号：BR0315272

    申请日：2003-10-14

    Applicant: BASF AG

    Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEPHAN ,  SCHROEDER STEFAN

    IPC: C14C1/06 ,  C14C3/16 ,  C14C1/08

    Abstract: Leather is produced by a process comprising at least two of the following process steps A) to D): A) use of one or more polyelectrolytes in the production of semifinished products or intermediate products, comprising the addition of one or more polyelectrolytes in at least one of the steps (a) to (d) (a) together with from 0 to 1.5% by weight, based on the salted weight, of lime, immediately before or during liming, (b) before or during deliming, (c) before or during bating, (d) together with, altogether, from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt, immediately before or during pickling; B) treatment of the hides during liming in an aqueous liquor with one or more compounds of the formula B.1 or the corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salts thereof, R 10 and X 1 to X 4 having the meanings stated in the description, with the proviso that at least two mercapto groups are present in the compound or the compounds B.1; C) use of degreasing agents of the formula C.1 for degreasing pelts, hides or other intermediate stages and semifinished products in leather production, n and R 16 to R 21 having the meanings stated in the description; D) tanning with the use of a tanning agent which can be prepared by reacting at least one aldehyde of the formula D.1, with at least one further identical or different aldehyde of the formula D.1 in the presence of an acidic catalyst and optionally in the presence of at least one further carbonyl compound of the formula D.2 Z and R 22 to R 25 having the meanings stated in the description, with the proviso that, when Z corresponds to a single chemical bond or a radical without alpha-hydrogen atoms, at least one further aldehyde of the formula D.1, in which Z contains alpha-hydrogen atoms, or at least one further carbonyl compound of the formula D.2 is present.

    43.
    发明专利
    未知

    公开(公告)号：DE10353746A1

    公开(公告)日：2005-06-09

    申请号：DE10353746

    申请日：2003-11-17

    Applicant: BASF AG

    Inventor： BUEHLER HOLGER ,  TELES JOAQUIM HENRIQUE ,  SUELING CARSTEN ,  TAEGER TILMAN LUEDECKE ,  PABST GUNTHER

    IPC: C07C321/14 ,  C07C323/12 ,  C07C323/15 ,  C07C323/16 ,  C07C323/17 ,  C14C1/06

    Abstract: horny substances are removed from hides of dead animals by a process wherein the hides of dead animals are treated with at least one substance of the formula I or at least one corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salt, where R 1 and R 4 are identical or different and are selected from hydrogen, C 6 -C 14 -aryl and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more SH or OH groups, R 2 and R 3 are identical or different and are selected from hydrogen, C 6 -C 14 -aryl and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more SH or OH groups, at least one radical R 2 or R 3 not being hydrogen or R 1 and R 4 not being hydrogen, and it being possible in each case for two vicinal radicals R 1 to R 4 together to be C 3 -C 10 -alkylene, R 5 is selected from hydrogen, C 1 -C 12 -alkyl, H-C-O or C 1 -C 4 -alkyl-C-O, X 1 , X 2 , X 3 and X 4 are selected from OH, SH and NHR 5 , where, if R 1 to R 4 contain at least one sulfur atom, at least one radical X 1 to X 4 is SH, and, if R 1 to R 4 contain no sulfur atom, at least two radicals X 1 to X 4 are SH.

    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
    44.
    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：DE10345094A1

    公开(公告)日：2005-04-21

    申请号：DE10345094

    申请日：2003-09-26

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  MIJOLOVIC DARIJO ,  DANISCH PETER ,  KLUEGLEIN MATTHIAS ,  PABST GUNTHER ,  WOLF GERHARD

    IPC: C08F290/04 ,  C14C3/22 ,  C14C9/02 ,  D06M15/227 ,  D06M15/27 ,  C08F210/14 ,  C04B41/49 ,  C08L67/06 ,  C09D167/06 ,  D06M15/263

    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.

    46.
    发明专利
    未知

    公开(公告)号：BR0311165A

    公开(公告)日：2005-03-15

    申请号：BR0311165

    申请日：2003-05-19

    Applicant: BASF AG

    Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEFAN ,  SCHROEDER STEFAN

    IPC: C14C1/06

    Abstract: Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts, the variables being defined as follows: R 1 is selected from hydrogen and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more S-H or O-H groups; X 1 to X 4 are identical or different and are selected from hydrogen, C 1 -C 4 -alkyl, O-H, S-H and N-HR 2 , R 2 is hydrogen or C 1 -C 12 -alkyl or a C 1 -C 4 -Alkyl-C-O group, at least one radical X 1 to X 4 being S-H when R 1 contains at least one sulfur atom and at least two radicals X 1 to X 4 being S-H when R 1 contains no sulfur atom.

    47.
    发明专利
    未知

    公开(公告)号：BR0211297A

    公开(公告)日：2004-09-14

    申请号：BR0211297

    申请日：2002-07-01

    Applicant: BASF AG

    Inventor： LAMALLE PHILIPPE ,  FUENGERLINGS THOMAS ,  SCHOLTISSEK MARTIN ,  TROPSCH JUERGEN ,  RULAND ALFRED ,  BOEHN ROLAND ,  OETTER GUENTER ,  HACKMANN CLAUS ,  PABST GUNTHER

    IPC: C11D1/72 ,  C14C1/08 ,  C14C5/00

    Abstract: The invention relates to a degreaser for treating hides, skins, pelts and other intermediates in leather and fur manufacture and also wool or related proteinaceous materials that is based on nonionic surfactants of the type of alcohol alkoxylates, comprising alcohol alkoxylates obtained by reaction of at least one alcohol ROH with n mol of at least one alkylene oxide per mole of alcohol ROH, where R is an alkyl radical of 5 to 30 carbon atoms which has a main chain, of 4 to 29 carbon atoms that has at least one C 1 - to C 10 -alkyl branch attached in the chain middle; the alkylene oxide has 2 to 6 carbon atoms, and n is an integer from 1 to 100. The invention further relates to a process for degreasing hide, skins, pelts and other intermediates of leather and fur manufacture and wool or related proteinaceous materials, which comprises using a degreaser according to the present invention, and to the use of the degreasers.

    49.
    发明专利
    未知

    公开(公告)号：DE10249077A1

    公开(公告)日：2004-04-29

    申请号：DE10249077

    申请日：2002-10-21

    Applicant: BASF AG

    Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEPHAN ,  SCHROEDER STEFAN

    IPC: C14C1/06 ,  C14C13/02 ,  C14C1/00 ,  C14C3/00 ,  C14C5/00

    Abstract: Leather is produced by a process comprising at least two of the following process steps A) to D): A) use of one or more polyelectrolytes in the production of semifinished products or intermediate products, comprising the addition of one or more polyelectrolytes in at least one of the steps (a) to (d) (a) together with from 0 to 1.5% by weight, based on the salted weight, of lime, immediately before or during liming, (b) before or during deliming, (c) before or during bating, (d) together with, altogether, from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt, immediately before or during pickling; B) treatment of the hides during liming in an aqueous liquor with one or more compounds of the formula B.1 or the corresponding alkali metal, alkaline earth metal, ammonium or phosphonium salts thereof, R 10 and X 1 to X 4 having the meanings stated in the description, with the proviso that at least two mercapto groups are present in the compound or the compounds B.1; C) use of degreasing agents of the formula C.1 for degreasing pelts, hides or other intermediate stages and semifinished products in leather production, n and R 16 to R 21 having the meanings stated in the description; D) tanning with the use of a tanning agent which can be prepared by reacting at least one aldehyde of the formula D.1, with at least one further identical or different aldehyde of the formula D.1 in the presence of an acidic catalyst and optionally in the presence of at least one further carbonyl compound of the formula D.2 Z and R 22 to R 25 having the meanings stated in the description, with the proviso that, when Z corresponds to a single chemical bond or a radical without alpha-hydrogen atoms, at least one further aldehyde of the formula D.1, in which Z contains alpha-hydrogen atoms, or at least one further carbonyl compound of the formula D.2 is present.

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