EP 0158077 B1 19870930 - PROCESS FOR RETANNING MINERAL-TANNED LEATHER
Title (en)
PROCESS FOR RETANNING MINERAL-TANNED LEATHER
Publication
Application
Priority
DE 3406912 A 19840225
Abstract (en)
[origin: ES8600775A1] The present invention concerns retanning agents for mineral tanned leathers. They comprise aqueous solutions of organic polymer complex compounds containing carboxyl groups doped with chromium III. The agents are characterized by high chromium depletion and retanning effects.
IPC 1-7
IPC 8 full level
C14C 3/06 (2006.01); C14C 3/22 (2006.01); C14C 3/28 (2006.01)
CPC (source: EP US)
Citation (examination)
- DE 1097681 B 19610119 - CIBA GEIGY
- Chemical Abstracts 77 (20), 1972, no. 127458a
Designated contracting state (EPC)
BE CH DE FR IT LI NL SE
DOCDB simple family (publication)
EP 0158077 A1 19851016; EP 0158077 B1 19870930; BR 8500409 A 19851203; DE 3406912 C1 19850905; DE 3560728 D1 19871105; ES 538491 A0 19851101; ES 8600775 A1 19851101; FI 79143 B 19890731; FI 79143 C 19891110; FI 850768 A0 19850225; FI 850768 L 19850826; JP S60190499 A 19850927; PT 79827 A 19850201; PT 79827 B 19880112; US 4750906 A 19880614
DOCDB simple family (application)
EP 85102053 A 19850225; BR 8500409 A 19850130; DE 3406912 A 19840225; DE 3560728 T 19850225; ES 538491 A 19841211; FI 850768 A 19850225; JP 2852685 A 19850218; PT 7982785 A 19850114; US 70355185 A 19850220