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.

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.

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.

公开(公告)号：DE10300479A1

公开(公告)日：2004-07-22

申请号：DE10300479

申请日：2003-01-09

Applicant: BASF AG

Inventor： PABST GUNTHER ,  LAMALLE PHILIPPE ,  FUENGERLINGS THOMAS ,  OETTER GUENTER ,  ERHARDT RAINER ,  SCHERR GUENTER ,  STREY REINHARD ,  SOTTMANN THOMAS ,  ENGELSKIRCHEN SANDRA

IPC: C14C1/08 ,  C14C5/00

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.

公开(公告)号：DE10134441A1

公开(公告)日：2003-02-06

申请号：DE10134441

申请日：2001-07-20

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 ,  C11D1/825

Abstract: The invention relates to a degreasing agent for treating skins, fur, limed skins and other intermediate products in leather and fur production, and for treating wool or related protein substances, based on non-ionic surfactants of the alcohol alcoxylate type. Alcohol alcoxylates are used which are obtained by reaction with at least one alcohol ROH with n mols of at least one alkylene oxide per mol of alcohol ROH, wherein R represents an alkyl radical containing between 5 and 30 carbon atoms, and having a main chain which contains between 4 and 29 carbon atoms and is branched in the centre thereof with at least one C1 - C10 alkyl radical; the alkylene oxide comprises between 2 and 6 carbon atoms; and n represents a whole number between 1 and 100. The invention also relates to a method for degreasing skins, fur, limed skins and other intermediate products in leather and fur production, and for treating wool or related protein substances, a degreasing agent according to the present invention being used. The invention further relates to the use of said degreasing agent.

公开(公告)号：BRPI0612827B1

公开(公告)日：2016-12-13

申请号：BRPI0612827

申请日：2006-07-06

Applicant: BASF AG

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

IPC: C14C3/16

Abstract: processo para a produção de couro, formulação, uso das formulações, produto semi-acabado e couro, e, processo para a preparação de formulações. a invenção refere-se a um processo para a produção de couro, caracterizado pelo fato de que depois do tratamento com cal, descalcificação e, se apropriado, piquelagem, as peles de animal são pré-curtidas ou curtidas com uma mistura de compostos que compreende (a) pelo menos um agente orgânico de curtimento e (b) uma mistura de (b1) pelo menos um ácido c3-c12-dicarboxílico (b2) e pelo menos um outro composto ácido selecionado entre os ácidos c1-c3-mono- ou c3-c12-dicarboxílicos ou sais dos mesmos.

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.

公开(公告)号：DE10333319A1

公开(公告)日：2005-02-10

申请号：DE10333319

申请日：2003-07-22

Applicant: BASF AG

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

IPC: C08F2/00 ,  C08F2/10 ,  C08F2/38 ,  C08F2/18

公开(公告)号：DE10319240A1

公开(公告)日：2004-11-18

申请号：DE10319240

申请日：2003-04-28

Applicant: BASF AG

Inventor： LEMAIRE HANS-GEORG ,  TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  BREUER MICHAEL ,  KROEGER BURKHARD ,  SUBKOWSKI THOMAS

IPC: C14C1/06

Abstract: Removal of keratin from animal skins involves treatment in an aqueous liquor containing, with respect to salted weight, 0.05-5 %, by weight mercaptan(s) (I) or the corresponding alkali(ne earth) metal, ammonium or phosphonium salt(s) and also compound(s) catalyzing hydrolysis of peptide bonds. Removal of keratin from animal skins involves treatment in an aqueous liquor containing, with respect to salted weight, 0.05-5 %, by weight mercaptan(s) of formula (I) or the corresponding alkali(ne earth) metal, ammonium or phosphonium salt(s) and also compound(s) catalyzing hydrolysis of peptide bonds: [Image] R1>H or 1-12 C alkyl, optionally with 1 or more S-H or O-H groups; X1>->4>S-H in at least one case, otherwise H, 1-4 C alkyl, O-H or NHR2>; and R2>H, 1-12 C alkyl or 1-4 C alkyl-C=O. If R1> contains no O-H or S-H, at least one other X1>->4> is S-H, OH or NHR2>. Independent claims are also included for: (1) unhaired hides produced by this process; (2) residual liquor from the process, containing melanine or its degradation products; (3) working up this residual liquor by optionally separating lime, then neutralizing with acid and separating proteins.