EP 0204162 B1 19900314 - METHOD OF FAT LIQUORING LEATHER AND ITS USE IN DIRECT SPRAYING POLYURETHANE FOR LEATHER/POLYURETHANE BONDING
Title (en)
METHOD OF FAT LIQUORING LEATHER AND ITS USE IN DIRECT SPRAYING POLYURETHANE FOR LEATHER/POLYURETHANE BONDING
Publication
Application
Priority
DE 3517803 A 19850517
Abstract (en)
[origin: US4810251A] Aqueous fatliquoring solutions, dispersions or emulsions are made with (a) polyethers having at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (b) polyester containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (c) polycarbonates containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or mixtures thereof. These fatliquoring agents are used to treat tanned leathers until from 0.1 to 20 wt % has been taken up. The thus-treated leather is particularly useful in the production of leather-polyurethane compositions such as shoes without the use of an adhesive.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Citation (examination)
- NL 8304021 A 19841203 - AKZO NV
- FR 2317318 A1 19770204 - BAYER AG [DE]
- DE 3048159 A1 19810903 - TOYO BOSEKI [JP]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0204162 A2 19861210; EP 0204162 A3 19871028; EP 0204162 B1 19900314; AT E51031 T1 19900315; CA 1257453 A 19890718; DE 3517803 A1 19861120; DE 3669532 D1 19900419; JP H0631440 B2 19940427; JP S61266500 A 19861126; US 4810251 A 19890307
DOCDB simple family (application)
EP 86106114 A 19860505; AT 86106114 T 19860505; CA 509061 A 19860513; DE 3517803 A 19850517; DE 3669532 T 19860505; JP 10974686 A 19860515; US 85816086 A 19860501