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1. IN4180/DELNP/2013 - NON METAL TANNING

Office India
Application Number 4180/DELNP/2013
Application Date 10.05.2013
Publication Number 4180/DELNP/2013
Publication Date 21.11.2014
Grant Number 319274
Grant Date 28.08.2019
Publication Kind B
IPC
C14C 3/26
CCHEMISTRY; METALLURGY
14SKINS; HIDES; PELTS OR LEATHER
CTREATING SKINS, HIDES OR LEATHER WITH CHEMICALS, ENZYMES OR MICROORGANISMS, e.g. TANNING, IMPREGNATING OR FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
3Tanning; Compositions for tanning
02Chemical tanning
08by organic agents
26using other organic substances, containing halogen
C07D 251/68
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
251Heterocyclic compounds containing 1,3,5-triazine rings
02not condensed with other rings
12having three double bonds between ring members or between ring members and non-ring members
26with only hetero atoms directly attached to ring carbon atoms
40Nitrogen atoms
54Three nitrogen atoms
68Triazinylamino stilbenes
Applicants STAHL INTERNATIONAL B.V.
Inventors REINEKING Claus
GAMARINO Roberta
TRIMARCO Licia
QUAGLIERINI Maurizio
GISLER Markus
NUSSER Rainer
Priority Data 10014484.9 11.11.2010 EP
Title
(EN) NON METAL TANNING
Abstract
(EN)
1 81 41 4Tanned 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 C alkyl C alkyl carbonyl C alkyl sulphonyl or a radical of formula (la) or (lb) 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.

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