Abstract: A process for the production of fat-liquored, tanned leather or pelt is provided. The process comprises the steps of fat-liquoring and tanning, wherein an animal hide, skin or pelt is fat-liquored with a substituted acylaminopolyorganosiloxane (A) in the presence of a surfactant or surfactant mixture (B), which is an anionic or nonionic surfactant or mixture of anionic or/and non-ionic surfactants, before, during or/and after tanning, wherein the substituted acylaminopolyorganosiloxane (A) is a polyorganosiloxane containing substituted acylamino groups linked to silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo-[alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges. Also provided are tanned pelt or leather, certain substituted acylaminopolyorganosiloxanes (A?) and related processes and compositions.

Abstract: A substituted acylaminopolyorganosiloxane (A) is a polyorganosiloxane containing substituted acylamino groups linked to silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo-[alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges. The alkylene contains 2-4 carbon atoms and the substituted acylamino groups are at least in part of formula and for the remaining part are selected from substituted acylamino groups of the formulae in which: X1 signifies hydrogen or the group —SO3?M+, X2 signifies hydrogen or the group —SO3?M+, with the proviso that one of X1 and X2 is —SO3?M+ and the other is hydrogen, R signifies C2-6-alkylene or cyclohexylene, and M+ signifies an alkali metal or ammonium cation. The substituted acylaminopolyorganosiloxane (A) and compositions thereof, in the presence of non-ionic or/and anionic surfactants (B), can be used as fat liquoring agents for fat-liquoring of animal hides, skins or pelts.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being a sulfo-group-containing dichloro-diazine selected from compounds of formula (I), (II), (III) and mixtures of two or more thereof, wherein R1 signifies hydrogen, methyl, methoxy, benzoyl, naphthoyl, mono- or di(C1-4-alkyl)-aminocarbonyl, C1-8-alkoxy-carbonyl or oxy-mono- or oligo-C2-3-alkyleneoxy)-carbonyl, R2—(SO3M)n signifies a radical of formula (a) or (b), wherein R3 signifies hydrogen, C1-8-alkyl or C1-8-alkoxy, m is 1 or 2, n is 1 or 2, and M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or belt with a tanning agent (A) of at least a mixture of compounds of formula (I) and formula (II), wherein Hal signifies fluorine or chlorine, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of formula (III), —(—C2-3 alkylene-O—)q—H (III); R2 signifies a) phenyl, mono- or di-substituted with SO3M or COOM and optionally substituted also with hydroxyl, C1-4-alkyl C1-4-alkoxy; b) naphthyl, mono- or di- or tri-substituted with SO3M and optionally substituted also with hydroxyl; c) C1-8-alkylene, substituted with (SO3M) or (COOM); d) aradical of formula (IV), —(—C2-3 alkylene-O—)p—Y (IV) or e) a radical of formula (IVa) —(C2-3 alkylene-O)p—C2-3 alkylene-SO2CH2CH2O—Y (IVa), M signifies 1 or 2, p signifies 0 or 1, Y signifies hydrogen or —SO3M, q signifies 1 to 10, M signifies hydrogen, an alkali metal cation or an ammonium cation being aprotonated tertiary amine or a quaternary ammonium

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein Hal signifies chlorine or fluorine, X signifies N or CR, Y signifies hydrogen, C1-8-alkyl, C1-4-alkyl-carbonyl, C-1-4-alkyl-sulphonyl or a radical of formula (Ia), or (Ib) —(—C2-3 alkylene-O—)q—H (Ib), R signifies hydrogen or chlorine, q is 1 to 10 and M signifies hydrogen, an alkali metal cation or an ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath having a pH of from 6 to 10 at the beginning of the tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of a formula (I), wherein X signifies fluorine or chlorine, and/or (+NR3)0-1, wherein R is a substituted or unsubstituted C1 to C6 alkyl group, a substituted or unsubstituted C6 to C10 aryl or a C5 to C6heteroaryl group, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of a formula (Ia), -(—C2-3 alkylene-O—)q—H (Ia), R2 signifies hydrogen or hydroxyl, m, signifies 1, 2 or 3, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of a formula (I), wherein X signifies fluorine or chlorine, and/or (+NR3)0-1, wherein R is a substituted or unsubstituted C1 to C6 alkyl group, a substituted or unsubstituted C6 to C10 aryl group or a C5 to C6 heteroaryl group, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of a formula (Ia), —(—C2-3 alkylene-O—)q—H (Ia), R2 signifies substituted or unsubstituted C2 to C8 alkylenesulphonic acid, substituted or unsubstituted C2 to C8 alkylenecarboxylic acid or an alkyleneoxy radical of formula (Ib), —(—C2-3 alkylene-O—)m—Y (Ib) or an alkylene sulfonyl alkyleneoxy radical of formula (Ic), —(—C2-3 alkylene-O—)p—C2-3 alkylene- SO2CH2O—Y (Ic), m signifies 1 or 2, p signifies 0 or 1, q is of from 1 to 10, Y signifies hydrogen or —SO3M, M signifies hydrogen or an alkali metal cation or an ammonium cation,

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of a formula (I), wherein X signifies fluorine or chlorine, and/or (+NR3)0-1, wherein R is a substituted or unsubstituted C1 to C6 alkyl group, a substituted or unsubstituted C6 to C10 aryl or a C5 to C6 heteroaryl group, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of a formula (Ia), —(—C2-3 alkylene-O—)q—H (Ia), R2 signifies hydrogen, hydroxyl, C1-4-alkyl or C1-4-alkoxy, m, signifies 1 or 2, n signifies 0 to 2, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step, wherein the bated hide or skin or pelt is subjected to tanning with (A) without previous pickling.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning with a tanning agent (A) of a formula (I), Wherein Hal signifies fluorine or chlorine, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of a formula (Ia), —(—C2-3alkylene-O—)q—H (Ia), R2 signifies C-1-4-alkyl or C-1-4-alkoxy, m, signifies 1 or 2, n signifies 0 or 1, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step, the invention relates to the defined tanning process, particular tanning agent compositions, the use of the tanned leather, skins or pelts for further processing and the produced tanned and optionally further processed leather, skins or pets.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (1), R—NH—Y—SO2—Z (1), wherein R is a radical of formula wherein Hal is fluorine or chlorine, X is N or CR1, Y is an aliphatic, aromatic or aromatic hydrocarbonic bridge which may be optionally be interrupted by a heteroatom or heteroatomic group, Z is vinyl, ?-chloroethyl, ?-phosphatoethyl or ?-sulphatoethyl, R1 is hydrogen or Cl, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least a mixture of compounds of formula (I) and formula (II), wherein Hal signifies fluorine or chlorine, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of formula (III), —(—C2-3 alkylene-O—)q—H??(III) R2 signifies a) phenyl, mono- or di-substituted with SO3M or COOM and optionally substituted also with hydroxyl or C1-4-alkyl or C1-4-alkoxy, or b) naphthyl, mono- or di- or tri-substituted with SO3M and optionally substituted also with hydroxyl, or c) C1-8-alkylene, substituted with (SO3M) or (COOM), or d) a radical of formula (IV), —(—C2-3 alkylene-O—)p—Y??(IV) e) or a radical of formula (IVa), —(C2-3 alkylene-O)p—C2-3 alkylene-SO2CH2CH2O—Y??(IVa) m signifies 1 or 2, p signifies 0 or 1, Y signifies hydrogen or —SO3M, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an am

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein Hal signifies chlorine or fluorine, X signifies N or CR Y signifies hydrogen, C1-8-alkyl, C1-4-alkyl-carbonyl, C1-4-alkyl-sulphonyl or a radical of formula (Ia), or (Ib) —(—C2-3 alkylene-O—)q—H??(Ib) R signifies hydrogen or chlorine, q is 1 to 10 and M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of the tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), R—NH—Y—SO2—Z??(I), wherein R signifies a radical of formula wherein Hal signifies fluorine or chlorine, X signifies N or CR1, Y signifies an aliphatic, araliphatic or aromatic hydrocarbonic bridge which may optionally be interrupted by a heteroatom or heteroatomic group, Z signifies vinyl, ?-chloroethyl, ?-phosphatoethyl or ?-sulphatoethyl R1 signifies hydrogen or Cl, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being a sulpho-group— containing dichloro-diazine selected from compounds of formula (I) of formula (II) and of formula (III) and mixtures of two or more thereof, wherein R1 signifies hydrogen, methyl, methoxy, benzoyl, naphthoyl, mono- or di(C1-4-alkyl)aminocarbonyl, C1-8-alkoxy-carbonyl or oxy-mono- or oligo-(C2-3-alkyleneoxy)-carbonyl R2-(SO3M)n signifies a radical of formula R3 signifies hydrogen, C1-8-alkyl or C1-8-alkoxy, m is 1 or 2, n is 1 or 2 and M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein X signifies fluorine, chlorine and/or (+NR3)0-1, wherein R is a substituted C1 to C6 alkyl group or an unsubstituted C1 to C6 alkyl group, an unsubstituted C6 to C10 aryl group or a substituted C6 to C10 aryl group or a C5 to C6 heteroaryl group, R1 signifies hydrogen, C1-8 alkyl or an alkyleneoxy radical of formula (Ia), —(—C2-3alkylene-O—)q—H??(Ia) R2 signifies substituted or unsubstituted C2 to C8 alkylenesulphonic acid, substituted or unsubstituted C2 to C8 alkylenecarboxylic acid or an alkyleneoxy radical of formula (Ib), —(—C2-3alkylene-O—)m—Y??(Ib) or an alkylene sulfonyl alkyleneoxy radical of formula (Ic), —(C2-3alkylene-O)p—C2-3alkylene-SO2CH2CH2O—Y??(Ic) m signifies 1 or 2, p signifies 0 or 1, q is of from 1 to 10, Y signifies hydrogen or —SO3M, M signifies

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein X signifies fluorine, chlorine and/or (+NR3)0-1, wherein R is a substituted C1 to C6 alkyl group or an unsubstituted C1 to C6 alkyl group, an unsubstituted C6 to C10 aryl group or a substituted C6 to C10 aryl group or a C5 to C6 heteroaryl group, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of formula (Ia), -(—C2-3alkylene-O—)q-H??(Ia) R2 signifies hydrogen or hydroxy, m signifies 1, 2 or 3, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein X signifies fluorine or chlorine, and/or (+NR3)0-1, wherein R is a substituted C1 to C6 alkyl group or an unsubstituted C1 to C6 alkyl group, an unsubstituted C6 to C10 aryl group or a substituted C6 to C10 aryl group or a C5 to C6 heteroaryl group.

Abstract: Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning with a tanning agent (A) of formula (I), wherein Hal signifies fluorine or chlorine, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of formula (Ia), —(—C2-3 alkylene-O—)q—H ??(Ia) R2 signifies C1-4-alkyl or C1-4-alkoxy, m signifies 1 or 2, n signifies 0 or 1, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step, the invention relates to the defined tanning process, particular tanning agent compositions, the use of the tanned leather, skins or pelts for further processing and the produced tanned and optionally further processed leather, skins or pelts.

Abstract: The invention relates to wet degreasing of pelts, skins, hides, leather intermediate products or non-finished leather, with emulsion degreasing agents (D) comprising a mixture (E) of ethoxylation and optionally propoxylation products of a mixture (A) of oxo-alcohols of formula CnH(2n+1)—CH2OH??(I), in which n is a number from 9 to 15, and the alkyl radical CnH(2n+1)— is linear, wherein (A) comprises a mixture of positional isomers for at least one of the significances of n, and the proportion of primary linear component in (A) in which the alkyl radical CnH(2n+1)— is a normal primary radical is in the range of 25 to 70% by weight of the mixture (A), and in (E) the average degree of ethoxylation is in the range of 5 to 12, and if the products (E) are also propoxylated the average degree of ethoxylation is superior to the average degree of propoxylation, in the presence of at least one further non-ionic emulsifier which is (F) at least one ethoxylation and optionally propoxylation product of (B) an aliphati

Abstract: Chiral diphosphines constituted by an aromatic pentatomic biheterocyclic system, suitable to act as chiral ligands, complexes between said diphosophines and transition metals, and their utilization as chiral catalysts in sterocontrolled reactions, such as diastereo- and enantioselective reduction reactions. Process for the preparation of said chiral diphosophines and process for the preparation of said complexes and for their utilization as chiral catalysts in sterocontrolled reactions.