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公开(公告)号：BR0309772A
公开(公告)日：2005-03-22
申请号：BR0309772
申请日：2003-05-02
Applicant: BASF AG
Inventor： HUFFER STEPHAN , PABST GUNTHER , TAEGER TILMAN LUDECKE , SCHROEDER STEFAN , WOLF GERHARD
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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.
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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
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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公开(公告)号：DE10231293A1
公开(公告)日：2003-11-20
申请号：DE10231293
申请日：2002-07-10
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , PABST GUNTHER , LUEDECKE TILMAN , SCHROEDER STEFAN , WOLF GERHARD
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公开(公告)号：BR0313072A
公开(公告)日：2007-07-17
申请号：BR0313072
申请日：2003-08-08
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , SCHROEDER STEFAN , WAGNER EINHARD , RODLER THORSTEN , VILL KARL
Abstract: Use is claimed as a tanning agent (or an intermediate for a tanning agent) of a clay mineral which, after 30 minutes intensive stirring in water at 50degreesC, gives a laser and light scattering-determined ISO 13320-1 number average particle diameter (D) below 2 mu or a bimodal distribution of (i) 10-90 wt.% of a fraction with D below 0.5 mu and (ii) a coarser fraction of D below 5 mu. An Independent claim is also included for a formulation for use in chromium-free or chrome tanning comprising (a) a clay mineral as above and (b) one or more of an organic polymer, an aldehyde-, sulfone- , resin-, phenol- or vegetable-tanning agent, dubbing material, dye or pigment.
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Patent Agency Ranking
公开(公告)号：AR039980A1
公开(公告)日：2005-03-09
申请号：ARP030101611
申请日：2003-05-08
Applicant: BASF AG
Inventor： TAEGER TILMAN LUEDECKE , PABST GUNTHER , LAMALLE PHILIPPE , HUEFFER STEPHAN , SCHROEDER STEFAN
IPC: C14C1/06
Abstract: Procedimiento para eliminar sustancias córneas de pieles o pellejos animales muertos por tratamiento de las pieles o pieles de pellejo en un bano acuoso con uno o varios compuestos de la fórmula general (1) o sus correspondientes sales de metal alcalino o alcalinotérreo o sales de amonio o fosfonio, teniendo las variables las definiciones siguientes: R1 es seleccionado de entre hidrógeno o alquilo C1-12, no sustituido o sustituido por uno o varios grupos S-H u O-H; X1a X4 son radicales iguales o diferentes y son seleccionados de entre: hidrógeno, alquilo C1-4, O-H, S-H o N-HR2; R2 significa hidrógeno o alquilo C1-12 o un grupo alquilo C1-4, -C=O, siendo preciso, que cuando R1 contiene por lo menos un átomo de azufre, por lo menos uno de los radicales X1 a X4 signifique S-H; Y que cuando R1 no contiene ningún átomo de azufre, por lo menos dos de los radicales X1 a X4 signifiquen S-H. Pieles en tripa de animales obtenidas mediante el procedimiento descripto y cueros fabricados por curtición de dichas pieles en tripa. Banos residuales, que contienen ni Na2S ni NaHs y que contienen como compuestos de azufre orgánicos únicamente aquellos de la fórmula general (1), así como sus productos de reacción y derivados resultantes de la eliminación de las sustancias córneas y compuestos de azufre de pieles o pieles de pellejo de animales muertos.
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公开(公告)号：BR0308353A
公开(公告)日：2005-01-25
申请号：BR0308353
申请日：2003-03-12
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , PABST GUNTHER , TAEGER TILMAN LUEDECKE , SCHROEDER STEFAN , LAMALLE PHILIPPE
Abstract: A process for the production of semifinished products and intermediates in the production of leather using one or more organic polyelectrolytes comprises at least one of the following steps: (a) Addition of one or more polyelectrolytes and from 0 to 0.7% by weight, based on the salted weight, of lime immediately before or during liming, (b) addition of one or more polyelectrolytes before or during deliming, (c) addition of one or more polyelectrolytes before or during bating, (d) addition of one or more polyelectrolytes and a total of from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt immediately before or in the pickle.
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公开(公告)号：DE10303311A1
公开(公告)日：2004-07-29
申请号：DE10303311
申请日：2003-01-28
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , REESE OLIVER , GRAMLICH WALTER , SCHROEDER STEFAN , SCHERR GUENTER , BACH VOLKER
IPC: C07D307/32 , C07D309/30 , C14C3/18 , C14C9/02 , C07D307/30 , A61L2/16
Abstract: Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) in the presence of water and an acid catalyst and (partly) removing the hydroxy, thio or amine compound during or at the end of heating. Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) of formula (I) in the presence of water and an acid catalyst and (partly) removing H-X-R3 during or at the end of heating. X = O, S or N-R6; R3, R6 = R, formyl or CO-R or may be combined to a ring if X is N-R6' R = 1-12 C alkyl or an optionally substituted 3-23 C cycloalkyl, 7-13 C aralkyl or 6-14 C aryl group; R1, R2, R4 = H or R or 2 adjacent groups may be combined to a ring; n = 1-4; and R5 = H or R or R4 and R5 or 2 adjacent R5 groups may be combined to a ring. Independent claims are also included for the following: (A) aqueous formulations prepared by this process; and (B) mixtures of dimers, oligomers and polymers of dicarbonyl compound(s) of formula (III).
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公开(公告)号：DE10255095A1
公开(公告)日：2004-06-03
申请号：DE10255095
申请日：2002-11-26
Applicant: BASF AG
Inventor： HUEFFER STEPHAN , SCHROEDER STEFAN , CARLE JUERGEN , RAEDLER THORSTEN , BACH VOLKER , TAEGER TILMAN LUEDECKE
Abstract: A semifinished leather product is produced from an animal hide by pretanning with the use of a chromium-free tanning agent and of a clay mineral which, after stirring for 30 minutes in water at 50° C. at a circumferential rotor speed of from 5 to 25 m/s, has a number average particle diameter of less than 2 μm or a bimodal particle size distribution with a first, finely divided fraction whose number average particle diameter is less than 0.5 μm and a second, coarser fraction whose number average particle diameter is less than 5 μm, determined in each case by the method according to ISO 13320-1, by combined laser light diffraction and light scattering, a proportion of the first, finely divided fraction being from 10 to 90% by weight, and drying of the pretanned animal hide to a water content of from 5 to 45%, based on the total weight of the semifinished leather product.
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公开(公告)号：AU2003260394A1
公开(公告)日：2004-03-29
申请号：AU2003260394
申请日：2003-08-08
Applicant: BASF AG
Inventor： SCHROEDER STEFAN , WAGNER EINHARD , RADLER THORSTEN , VILL KARL , HUFFER STEPHAN
Abstract: Use is claimed as a tanning agent (or an intermediate for a tanning agent) of a clay mineral which, after 30 minutes intensive stirring in water at 50degreesC, gives a laser and light scattering-determined ISO 13320-1 number average particle diameter (D) below 2 mu or a bimodal distribution of (i) 10-90 wt.% of a fraction with D below 0.5 mu and (ii) a coarser fraction of D below 5 mu. An Independent claim is also included for a formulation for use in chromium-free or chrome tanning comprising (a) a clay mineral as above and (b) one or more of an organic polymer, an aldehyde-, sulfone- , resin-, phenol- or vegetable-tanning agent, dubbing material, dye or pigment.
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