Title (en)

PICKLING AND TANNING PROCESS AND PICKLING COMPOSITION

Publication

EP 0064761 B1 19851113 (EN)

Application

EP 82104070 A 19800509

Priority

• EP 80301529 A 19800509
• JP 5132380 A 19800417
• JP 5848879 A 19790511

Abstract (en)

[origin: EP0064761A1] A tanning process comprising pickling a hide which has previously subjected to beamhouse works such as depilation if necessary, decalcification and beating, in the presence of urotropin and at least one tanning improver selected from chromium and aluminum salts as well as from phenolic compounds, organic compounds containing nitrogen and sulphur or halogen atoms, organic carboxylic acids, organotin compounds, copper compounds and arsenic compounds.

IPC 1-7

C14C 1/08

IPC 8 full level

C14C 1/08 (2006.01); C14C 3/06 (2006.01)

CPC (source: EP)

C14C 1/08 (2013.01); C14C 3/06 (2013.01)

Citation (examination)

EP 0014721 A1 19800903 - SEITETSU KAGAKU CO LTD [JP]

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0064761 A1 19821117; EP 0064761 B1 19851113; DE 3071238 D1 19851219

DOCDB simple family (application)

EP 82104070 A 19800509; DE 3071238 T 19800509