EP 0963445 A1 19991215 - BIOLOGICALLY DEGRADABLE LEATHER
Title (en)
BIOLOGICALLY DEGRADABLE LEATHER
Title (de)
BIOLOGISCH ABBAUBARES LEDER
Title (fr)
CUIR BIODEGRADABLE
Publication
Application
Priority
- DE 19707578 A 19970226
- DE 19736309 A 19970820
- EP 9800804 W 19980213
Abstract (en)
[origin: WO9838340A1] The invention relates to a method for producing leather which is both completely biologically degradable and fully wear resistant by means of: I) (pre)tanning using tanning agents containing aldehydes or carbomoyle sulfanate groups, II) optionally (re)tanning with polyasparaginic acids and/or polyasparaginic acid amides, III) bottoming with polyurethane and natural auxiliary agents, finish consisting of polyurethane and/or polyester amide and IV) optionally, after-treatment with leather conservation products.
IPC 1-7
IPC 8 full level
C08G 18/80 (2006.01); C14C 3/08 (2006.01); C14C 3/18 (2006.01); C14C 3/28 (2006.01); C14C 9/00 (2006.01); C14C 11/00 (2006.01)
CPC (source: EP US)
C08G 18/8083 (2013.01 - EP US); C14C 3/08 (2013.01 - EP US); C14C 3/18 (2013.01 - EP US); C14C 3/28 (2013.01 - EP US); C14C 9/00 (2013.01 - EP US); C14C 11/003 (2013.01 - EP US); C08G 2230/00 (2013.01 - EP US)
Citation (search report)
See references of WO 9838340A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9838340 A1 19980903; AU 6398498 A 19980918; EP 0963445 A1 19991215; JP 2001513129 A 20010828; US 6254644 B1 20010703
DOCDB simple family (application)
EP 9800804 W 19980213; AU 6398498 A 19980213; EP 98909457 A 19980213; JP 53724098 A 19980213; US 36799299 A 19990823