Skin polyurethane foam

Claim 1

A SKIN URETHANE FOAM, WHICH COMPRISES: A COVER LAYER OF AN ORGANIC SOLVENT SOLUBLE, SUBSTANTIALLY LINEAR POLYURETHANE OF AN AVERAGE THICKNESS OF 0.01-1.0 MM FORMED BY APPLYING A SOLUTION OF SAID SUBSTANTIALLY LINEAR POLYURETHANE WHICH IS FORMED BY REACTING A POLYOL HAVING A MOLECULAR WEIGHT OF 1,000-3,000 WITH AN ORGANIC POLYISOCYANATE AND WITH A CHAIN EXTENDER IN AMOUNTS SUCH THAT THE RATIO OF ISOCYANATE GROUPS TO ACTIVE HYDROGEN CONTAINING GROUPS IS 0.95-1.1, SAID POLYOL BEING SELECTED FROM THE GROUP CONSISTING OF POLYESTER POLYOL, POLYETHER POLYOL AND POLYESTER-POLYETHER POLYOL, SAID POLYISOCYANATE BEING SELECTED FROM THE GROUP CONSISTING OF 4,4''-DIPHEN METHANE DIISOCYNATE, TOLYLENE DIISOCYANATE, XYLENE DISSOCYANATE, HEXAMETHYLENE DIISOCYANATE, ISOPHORONE DIISOCYANATE, DICYYCLOHEXYLMETHANE DIISOCYANATE, SAID CHIN EXTENDER BEING SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, TRIMETHYLENE GLYCOL, 1,4-BUTYLENE GLYCOL, DIETHYLENE GLYCOL AND NEOPENTYL GLYCOL, TO THE CAVITY OF A MOLD AND DRYING THE APPLIED SOLUTION: AN INTERMEDIATE LAYER APPLIED ONTO THE COVER LAYER AND FORMED FROM A TWO COMPONENT-TYPE POLYURETHANE CONSISTING ESSENTIALLY OF A POLYURETHANE PREPOLYMER HAVING FREE ISOCYANATE GROUPS AND A HARDENER WHICH COMPRISES A MIXTURE OF A POLYOL HAVING A MOLECULAR WEIGHT OF 8003,000 PER HYDROXYL GROUP WITH A CROSS-LINKING AGENT HAV: ING A MOLECULAR WEIGHT LESS THAN 500; AND A URETHANE FOAM LAYER FORMED BY INTRODUCING A URETHANE FOAM-FORMING MIXTURE INTO THE CAVITY OF SAID MOLD ONTO SAID INTERMEDIATE LAYER BEFORE SAID INTERMEDIATE LAYER CURES COMPLETELY AND ALLOWING THE URETHAN FOAMFORMING MIXTURE TO FOAM, WHEREIN SAID COVER LAYER AND SAID FOAM ARE INTEGRALLY BOUND BY SAID INTERMEDIATE LAYER.