EP 1651781 B1 20090617 - METHOD FOR THE PRODUCTION OF LEATHER BY USING POLYMERS
Title (en)
METHOD FOR THE PRODUCTION OF LEATHER BY USING POLYMERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON LEDER UNTER VERWENDUNG VON POLYMERISATEN
Title (fr)
PROCEDE DE PRODUCTION DE CUIR AU MOYEN DE PRODUITS DE POLYMERISATION
Publication
Application
Priority
- EP 2004007270 W 20040703
- DE 10333749 A 20030723
Abstract (en)
[origin: DE10333749A1] Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides; vinyl aromatic compound(s); alkoxylated unsaturated ether(s) (I); and optionally further monoethylenically unsaturated monomers. The copolymers (A) are new. Preparation of leather involves treating unhaired hide, pickled unhaired hide or semi-finished leather with a polymer (A) obtained by copolymerization of: (1) one or more of 3-8C monoethylenically unsaturated mono- or dicarboxylic acids or their anhydrides, (2) vinyl aromatic compound(s), (3) alkoxylated unsaturated ether(s) of formula (I) and optionally (4) further monoethylenically unsaturated monomers. [Image] R 1>- R 5>H or Me; R 6>H, SO 3M, PO 3M 2, CHO, (1-20C) alkylcarbonyl or (6-14C) arylcarbonyl; M : alkali metal, NH 4+>or Me; n : 3-100; y : 0-10. Independent claims are included for: (a) the polymers (A) as new; (b) the preparation of (A); and (c) aqueous dispersions containing up to 50 wt. % (A).
IPC 8 full level
C14C 3/22 (2006.01); C08F 220/06 (2006.01)
CPC (source: EP US)
C14C 3/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2007107135 A1 20070517; AR 046512 A1 20051214; AT E434058 T1 20090715; BR PI0412691 A 20061003; CN 1826415 A 20060830; CN 1826415 B 20100616; DE 10333749 A1 20050210; DE 502004009623 D1 20090730; EP 1651781 A1 20060503; EP 1651781 B1 20090617; WO 2005019480 A1 20050303
DOCDB simple family (application)
US 56551204 A 20040703; AR P040102599 A 20040722; AT 04740614 T 20040703; BR PI0412691 A 20040703; CN 200480021109 A 20040703; DE 10333749 A 20030723; DE 502004009623 T 20040703; EP 04740614 A 20040703; EP 2004007270 W 20040703