EP 0208989 A3 19890208 - PROCESS FOR CLEANING FURS AND LEATHER
Title (en)
PROCESS FOR CLEANING FURS AND LEATHER
Publication
Application
Priority
DE 3524534 A 19850710
Abstract (en)
[origin: EP0208989A2] Process for cleaning furs and leathers by treating these materials with pieces of open-celled polyurethane foam having a density of from 60 to 120 kg/m<3> which have been treated with halocarbons. A polyurethane foam suitable for this purpose is obtained by reacting mixtures of polyalkylene glycols having an equivalent weight of from 200 to 2000 and polyhydroxy compounds having an equivalent weight of from 30 to 100 with isocyanato-containing precursors of polyisocyanates and polyalkylene glycols having an equivalent weight of from 50 to 500, preferably 300. Polyurethane foams of this kind are very retentive of the solvent, which is released only gradually. This ensures very gentle cleaning.
IPC 1-7
IPC 8 full level
C11D 3/37 (2006.01); C14C 11/00 (2006.01); D06L 1/00 (2017.01); D06L 1/01 (2017.01); D06L 1/02 (2006.01); D06L 1/04 (2006.01)
CPC (source: EP)
C11D 3/3726 (2013.01); D06L 1/00 (2013.01); D06L 1/01 (2016.12); D06L 1/02 (2013.01)
Citation (search report)
- [Y] FR 2240287 A1 19750307 - LIEM ETS [FR]
- [Y] FR 2163692 A1 19730727 - DU PONT
- [Y] GB 939478 A 19631016 - WERNER HERMANN KREIDL
- [Y] FR 2015972 A1 19700430 - HENKEL & CIE GMBH
- [Y] SEIFEN, ÖLE, FETTE, WACHSE, Band 109, Nr. 14, September 1983, Seite 414, Augsburg, DE
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0208989 A2 19870121; EP 0208989 A3 19890208; EP 0208989 B1 19910327; AT E62031 T1 19910415; BR 8603215 A 19870224; DE 3524534 A1 19870122; DE 3678346 D1 19910502; JP S6215378 A 19870123
DOCDB simple family (application)
EP 86108982 A 19860702; AT 86108982 T 19860702; BR 8603215 A 19860709; DE 3524534 A 19850710; DE 3678346 T 19860702; JP 15989286 A 19860709