EP 2257650 A1 20101208 - METHOD FOR MANUFACTURING LEATHER
Title (en)
METHOD FOR MANUFACTURING LEATHER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON LEDER
Title (fr)
PROCÉDÉ DE FABRICATION DE CUIR
Publication
Application
Priority
- EP 2009053071 W 20090316
- EP 08153056 A 20080320
- EP 09722872 A 20090316
Abstract (en)
[origin: WO2009115487A1] The present invention relates to a method for manufacturing leather, characterized in that the pre-tanning, main-tanning or post-tanning is carried out in the presence of (a) at least one compound of the general formula (I) (b) and oxalic acid or the corresponding ammonium or alkali metal salts thereof, respectively, where R1 is selected from methyl, ethyl, phenyl, benzyl, hydroxymethyl, isopropyl, isobutyl and sec.-butyl.
IPC 8 full level
C14C 3/10 (2006.01); C14C 3/20 (2006.01); C14C 3/28 (2006.01)
CPC (source: EP)
C14C 3/10 (2013.01); C14C 3/20 (2013.01); C14C 3/28 (2013.01)
Citation (search report)
See references of WO 2009115487A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009115487 A1 20090924; BR PI0909178 A2 20150825; CN 101978077 A 20110216; EP 2257650 A1 20101208
DOCDB simple family (application)
EP 2009053071 W 20090316; BR PI0909178 A 20090316; CN 200980110016 A 20090316; EP 09722872 A 20090316