Methods for producing coated leather and the products thereof

Claim 1

A PROCESS FOR PRODUCING A COATED LEATHER COMPRISING APPLYING TO THE SURFACE OF A LEATHER AN AQUEOUS DISPERSION OF POLYVALENT METAL IONS, A NON-IONIC DESOERSING AGENT AND FROM 1% TO 60% BY WEIGHT OF A WATER INSOLUBLE COPOLYMER OF MONOETHYLENICALLY UNSATURATED MONOMERIC UNITS COMPRISING 3 TO 12 MOLE PERCENT OF UNITS CONTAINING -COOH GROUPS, THE POLYVALENT METAL IONS BEING SUFFICIENT TO NEUTRALIZE IN THE COPOLMER ON DRYING AT LEAST 3 MOLE PERCENT OF UNITS CONTAINING COOH, DRYING THE DISPERSION ON THE LEATHER AT A TEMPERATURE SUFFICIENTLY HIGH TO EFFECT COALESCENCE OF THE COPOLYMER PARTICULES CROSSLINKED BY THE POLYVALENT METAL INTO A COATING ON THE LEATHER, SUNSEQUENTLY APPLYING S DISPERSION IN AN ORGANIC SOLVENT COMPRISING A FILM-FORMATING A DISPERSION IN AN ORGANIC FORMED EXCLUSIVELY OF AT LEAST ONE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE, VINYL ACETATE, VINYL PROPIONATE, VINYLIDENE CHLORIDE, ACRYLONITRILE, MATHACRYLONITRILE, AND ALKYL ESTERS OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS, AND A POLYISOCYANATE, THE CONCENTRATION OF THE ORGANIC SOLVENT DISPERSION BEING FROM 2% TO 20% AND THE AMOUNT OF POLYISOCRYANATE BEING FROM 1% TO 65% BY WEIGHT OF THE ADDITION POLYMER, AND DRYING THE LATTER COATING, AT LEAST ONE OF SAID DISPERSIONS CONTAINING A PIGMENT SUSPENDED THEREIN, THE PROPORTION OF PIGMENT WHEN IN THE AQUEOUS DISPERSION, BEING FROM ABOUT 10% TO 150% BY WEIGHT OF THE COPOLYMER AND WHEN IN THE ORGANIC SOLVENT DISPERSION BEING FROM 5% TO 100% BY WEIGHT OF THE ADDITION POLYMER THEREIN