Global Patent Index - EP 0158077 A1

EP 0158077 A1 19851016 - Process for retanning mineral-tanned leather.

Title (en)

Process for retanning mineral-tanned leather.

Title (de)

Verfahren zum Nachgerben von mineralgegerbtem Leder.

Title (fr)

Procédé de retannage de cuir tanné au minéral.

Publication

EP 0158077 A1 19851016 (DE)

Application

EP 85102053 A 19850225

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.

Abstract (de)

Die vorliegende Erfindung betrifft Nachgerbemittel für mineralgegerbte Leder. Sie bestehen aus wäßrigen Lösungen carboxylgruppenhaltiger mit Chrom dotierter organishcer Polymerkomplexverbindungen. Diese Mittel zeichnen sich durch große Chromauszehrung und Nachgerbwirkung aus.

IPC 1-7

C14C 3/22; C14C 3/28

IPC 8 full level

C14C 3/06 (2006.01); C14C 3/22 (2006.01); C14C 3/28 (2006.01)

CPC (source: EP US)

C14C 3/22 (2013.01 - EP US); C14C 3/28 (2013.01 - EP US)

Citation (search report)

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