公开(公告)号：EP1805328B1

公开(公告)日：2009-01-14

申请号：EP05803571.8

申请日：2005-10-08

Applicant: BASF SE

Inventor： RÜBA, Eva ,  ERHARDT, Rainer ,  REESE, Oliver ,  SOMOGYI, Laszlo ,  ZAMPONI, Andrea ,  KIESOW, Harald ,  PABST, Gunther ,  HÜFFER, Stephan ,  DANISCH, Peter ,  SCHROEDER, Stefan

IPC: C14C3/20

CPC classification number: C07C305/04 ,  C14C9/02

Abstract: A process is disclosed for producing leather by contacting pre-treated animal skins with at least one compound having at least one group of formula I, in which the variables are defined as follows: Ar

公开(公告)号：EP1670859B1

公开(公告)日：2010-03-17

申请号：EP04765382.9

申请日：2004-09-18

Applicant: BASF SE

Inventor： HÜFFER, Stephan ,  MIJOLOVIC, Darijo ,  DANISCH, Peter ,  KLÜGLEIN, Matthias ,  PABST, Gunther ,  WOLF, Gerhard

IPC: C08L23/22 ,  C08F290/04 ,  C14C11/00 ,  C14C9/00 ,  D06M15/227 ,  D06M15/27 ,  D21H19/20 ,  C04B41/48 ,  B27K3/15

CPC classification number: C14C9/02 ,  C08F290/042 ,  C14C3/22 ,  D06M15/227 ,  D06M15/27 ,  D21H17/35 ,  D21H17/43 ,  D21H17/72 ,  D21H21/16

公开(公告)号：EP1511865B1

公开(公告)日：2009-08-05

申请号：EP03752667.0

申请日：2003-05-19

Applicant: BASF SE

Inventor： TAEGER, Tilman, Lüdecke ,  PABST, Gunther ,  LAMALLE, Philippe ,  HÜFFER, Stephan ,  SCHROEDER, Stefan

IPC: C14C1/06

CPC classification number: C14C1/06

Abstract: Disclosed is a method for removing horn substance from skins, pelts, or furs of dead animals by treating said skins, pelts, or furs in an aqueous liquor comprising one or several compounds of general formula I or the corresponding alkaline salts, alkaline earth metal salts, ammonium salts, or phosphonium salts thereof, in which the variables are defined as follows: R is selected among hydrogen or C1-C12 alkyl, which is unsubstituted or substituted with one or several S-H group/s or O-H group/s; X to X are identical or different, being selected among hydrogen, C1-C4 alkyl, O-H, S-H, or N-HR ; R represents hydrogen, C1-C12 alkyl, or a C1-C4 alkyl C=O group. At least one radical X to X represents S-H if R contains at least one sulfur atom while at least two radicals X to X represent S-H if R contains no sulfur atom.

公开(公告)号：EP1663964B1

公开(公告)日：2008-07-02

申请号：EP04765052.8

申请日：2004-09-10

Applicant: BASF SE

Inventor： BÜHLER, Holger ,  TELES, Joaquim, Henrique ,  PABST, Gunther ,  TAEGER, Tilman, Lüdecke

IPC: C07C323/19 ,  C07D301/12

CPC classification number: C07D407/04 ,  C07C323/12

Abstract: The invention relates to a method for the production of bisepoxides, characterised in that a conjugated diene of formula (I) is reacted with at least one peroxide with the application of up to 4 equivalents of peroxide per C-C double bond, where R1 is selected from hydrogen and C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, in the presence of a catalyst, obtained by the bringing into contact of at least one manganese compound, selected from A2MnX4, AMnX3, MnY, MnX2 and MnX3 with at least one ligand L, of general formula (II), whereby the variables have the following definitions: X may be the same or different and is selected from monovalent anions, Y is a divalent anion, A is selected from alkali metals and optionally alkylated ammonium, R2 may be different or preferably the same and selected from C1-C20 alkyl and at least one co-ligand, derived from monocarboxylic acids, di- or poly-carboxylic acids or diamines.

公开(公告)号：EP1478785B1

公开(公告)日：2011-11-09

申请号：EP03704668.7

申请日：2003-02-20

Applicant: BASF SE

Inventor： LUNKWITZ, Ralph ,  SEITZ, Andreas ,  PABST, Gunther

IPC: C14C9/02

CPC classification number: C14C9/02

Abstract: The invention relates to agents for stuffing especially Cr-free tanned leather and skins. Said agents contain A) at least one modified native oil, in addition to B) at least one stabiliser LnR, wherein L represents formula (I) and Ra = H or methyl, Rb = methyl, ethyl or tert-butyl, Rc = methyl, tert-butyl, cyclohexyl or methylcyclohexyl, R represents an n-valent, optionally substituted and/or heteroatom- containing, C3- - C30- hydrocarbon radical, and n is a whole number from 1 10. The stabiliser LnR comprises a total of at least 20 C-atoms, especially a total of at least 28 C-atoms, and in the case where n = 2: R also represents -S-, -0-, - N(H)-, -CH2-, -(CH2)2-, -CH(CH3)-, -(CH2)3 -, -CH(C2H5)- or -C(CH3)2. The invention also relates to the use of the inventive stuffing agents in the production and/or treatment of leather and to a method for producing and/or treating leather with aqueous dispersions of said stuffing agents.

公开(公告)号：EP1751318B1

公开(公告)日：2011-01-05

申请号：EP05752803.6

申请日：2005-05-13

Applicant: BASF SE

Inventor： ERHARDT, Rainer ,  PABST, Gunther ,  OETTER, Günter ,  SEITZ, Andreas ,  DANISCH, Peter

IPC: C14C9/02 ,  C07C43/11 ,  C08G71/00

CPC classification number: C14C9/02 ,  C08G71/00

Abstract: Compositions, containing the following components a) at least two alkoxylated alcohols, b) at least one hydrophobic component, selected from natural, modified natural and synthetic hydrophobic substances, c) at least 20 % water by weight in relation to the overall weight of the composition, characterized in that the compositions have an average hydrodynamic radius ranging from 1 to 200 nm, determined by dynamic light scattering.

公开(公告)号：EP1506319B1

公开(公告)日：2009-08-05

申请号：EP03749808.6

申请日：2003-05-02

Applicant: BASF SE

Inventor： HÜFFER, Stephan ,  PABST, Gunther ,  TAEGER, Tilman, Lüdecke ,  SCHROEDER, Stefan ,  WOLF, Gerhard

IPC: C14C3/16 ,  C07C45/72

CPC classification number: C07C45/72 ,  C14C3/16

Abstract: The invention relates to a tanning agent that is produced by reacting at least one aldehyde of general formula (I) with at least another identical or different aldehyde of formula (I), wherein the variables are defined as follows: Z is a single chemical bond, an optionally substituted C1-C12-alkyl, an optionally substituted C5-C12-cycloalkyl or an optionally substituted C6-C14-aryl, wherein the reaction is carried out in the presence of an acid catalyst and optionally in the presence of at least another carbonyl compound of formula (II), R to R represent, independent of one another, hydrogen, optionally substituted C1-C12-alkyl, optionally substituted C3-C12-cycloalkyl, optionally substituted C7-C13-aralkyl or optionally substituted C6-C14-aryl, provided that at least another aldehyde of formula (I) in which the radical of Z contains alpha hydrogen atoms or at least another carbonyl compound of formula (I) is present when Z is a single chemical bond or a radical without any hydrogen atoms. The invention also relates to a method for the production of said tanning agent, to the utilization thereof as curing agent, particularly for pretannage, tannage or retannage of animal skins using the inventive tanning agents. The invention further relates to a powder active agent containing one or more of said inventive tanning agents, to a method for the production of said powder active agents and to the use thereof as curing agent and to leather produced using the inventive tanning agents or the inventive method.