EP 0757108 B1 19990929 - Method for waterproofing leather
Title (en)
Method for waterproofing leather
Title (de)
Verfahren zum Hydrophobieren von Leder
Title (fr)
Procédé d'imperméabilisation du cuir
Publication
Application
Priority
US 183295 P 19950803
Abstract (en)
[origin: EP0757108A2] The present invention provides an aqueous composition for use in waterproofing leather containing an aqueous dispersion of a silicone oil emulsified with a water-insoluble amphiphilic copolymer formed from 50 weight percent to 90 weight percent of at least one ethylenically-unsaturated hydrophobic monomer and from 10 weight percent to 50 weight percent of at least one copolymerizable water-soluble ethylenically-unsaturated acidic or basic hydrophilic comonomer; where the copolymer has a weight average molecular weight of from 2000 to 100,000; and where the ratio of silicone oil to amphiphilic copolymer by weight is from 1:5 to 8:1. A method for waterproofing leather using the aqueous composition is also provided.
IPC 1-7
IPC 8 full level
C14C 9/00 (2006.01)
CPC (source: EP KR)
C14C 9/00 (2013.01 - EP KR)
Designated contracting state (EPC)
DE ES GB IT NL
DOCDB simple family (publication)
EP 0757108 A2 19970205; EP 0757108 A3 19980318; EP 0757108 B1 19990929; AU 6061896 A 19970206; AU 713882 B2 19991216; BR 9603228 A 19980929; CN 1140635 C 20040303; CN 1146490 A 19970402; DE 69604461 D1 19991104; DE 69604461 T2 20000525; ES 2138294 T3 20000101; KR 970010978 A 19970327; MX 9603158 A 19970731
DOCDB simple family (application)
EP 96305508 A 19960726; AU 6061896 A 19960722; BR 9603228 A 19960730; CN 96109277 A 19960801; DE 69604461 T 19960726; ES 96305508 T 19960726; KR 19960031849 A 19960731; MX 9603158 A 19960801