Title (en)

Pickling and tanning process and pickling composition.

Title (de)

Gerb- und Pickelverfahren und Pickelzusammnesetzungen.

Title (fr)

Procédé de picklage et tannage et compositions de picklage.

Publication

EP 0064761 A1 19821117 (EN)

Application

EP 82104070 A 19800509

Priority

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

Abstract (en)

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 (search report)

• [A] DE 879453 C 19530611 - BASF AG
• [A] CHEMICAL ABSTRACTS, vol. 76, 1972, page 112, no. 128854t, Columbus, Ohio, USA & SU - A - 323 444 (G.F. KOL'TSOV et al.) 10-12-1971
• [A] DAS LEDER, vol. 30, no. 4, April 1979, page 62 & SU - A - 533 636 (LEATHER SHOE IND.) 29-11-1976
• [A] CHEMICAL ABSTRACTS, vol. 76, 1972, page 76, no. 60988g, Columbus, Ohio, USA & SU - A - 314 797 (YA.A. PURIM et al.) 21-09-1971

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