EP 1216322 A1 20020626 - METHOD FOR PRODUCTION OF SYNTHETIC LEATHER
Title (en)
METHOD FOR PRODUCTION OF SYNTHETIC LEATHER
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES SYNTHETISCHEN LEDERS
Title (fr)
PROCEDE POUR PRODUIRE UN CUIR SYNTHETIQUE
Publication
Application
Priority
- DE 19944441 A 19990916
- EP 0009042 W 20000915
Abstract (en)
[origin: DE19944441A1] The invention relates to a method for producing synthetic leather from a non-woven containing microfibers. According to the invention, the production method involves processing a thermoplastic microfiber with a titer of 0.05 to 1.0 dtex and hot-water soluble fibers with a titer of 4 to 6 dtex in a weight % ratio of 90:10 to 30:70 to form a non-woven having a surface area weight of 80 to 1000 g/m<2>. Said non-woven is impregnated with an aqueous binding agent-dispersion of a viscoelastic substance with a weight ratio of 25:75 to 75:25 of non-woven viscoelastic substance whereby fixation of said viscoelastic substance is achieved by cross-linking or vulcanization and the hot-water soluble fibers are subsequently extracted from said non-woven.
IPC 1-7
IPC 8 full level
D04H 1/4291 (2012.01); D04H 1/4334 (2012.01); D04H 1/435 (2012.01); D04H 1/4382 (2012.01); D04H 1/492 (2012.01); D04H 1/58 (2012.01); D04H 1/587 (2012.01); D06N 3/00 (2006.01)
CPC (source: EP KR US)
D04H 1/4291 (2013.01 - EP KR); D04H 1/4334 (2013.01 - EP KR); D04H 1/435 (2013.01 - EP KR); D04H 1/43828 (2020.05 - EP KR US); D04H 1/4383 (2020.05 - EP KR US); D04H 1/43832 (2020.05 - EP KR US); D04H 1/43838 (2020.05 - EP KR US); D04H 1/49 (2013.01 - KR); D04H 1/492 (2013.01 - EP KR); D04H 1/587 (2013.01 - EP KR); D04H 1/64 (2013.01 - EP KR); D06N 3/0004 (2013.01 - EP KR); D06N 3/0052 (2013.01 - EP KR)
Citation (search report)
See references of WO 0120072A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19944441 A1 20010329; BR 0014045 A 20020521; CA 2385307 A1 20010322; CN 1375025 A 20021016; EP 1216322 A1 20020626; JP 2003509596 A 20030311; KR 20020041440 A 20020601; MX PA02002834 A 20040727; WO 0120072 A1 20010322
DOCDB simple family (application)
DE 19944441 A 19990916; BR 0014045 A 20000915; CA 2385307 A 20000915; CN 00812899 A 20000915; EP 0009042 W 20000915; EP 00966028 A 20000915; JP 2001523436 A 20000915; KR 20027003530 A 20020316; MX PA02002834 A 20000915