Patent ID: 6479153
Filing Date: 2002-11-12
Classification: D06N,Y10S,Y10T

Abstract:
A leather-like sheet obtained by the process comprising:impregnating a fibrous substrate with a thermally gellable composite resin emulsion obtained by emulsion polymerizing an ethylenically unsaturated monomer (B) in the presence of a polyurethane emulsion (A) such that the weight ratio of polyurethane in said polyurethane emulsion (A) to monomer (B) is from 90/10 to 10/90, solidifying said emulsion in the impregnated fibrous substrate by heating, and if said fibrous substrate comprises a microfine fiber-forming fiber, converting the microfine fiber-forming fiber into a microfine fiber bundle, thereby producing a leather-like sheet, wherein a 100 &mgr;m thick resin film, obtained by drying the composite resin emulsion at 50Â° C., has an elastic modulus at 90Â° C. of 5.0Ã—108 dyn/cm2 or less.