Adhesive for bonding plasticized polyvinyl halide-containing resin surfaces and method of bonding such surfaces

Claim 1

THE METHOD OF EFFECTING A BOND BETWEEN A SURFACE OF A PLASTICIZED POLYVINYL HALIDE-CONTAINING RESIN AND ANOTHER SURFACE WHICH COMPRISES COATING ONE OF SAID SURFACES WITH A SOLUTION CONSISTING ESSENTIALLY OF FROM 7 TO 25 PER CENT BY WEIGHT OF A TRIPOLYMER CONSISTING OF ABOUT 85 PER CENT VINYL CHLORIDE, ABOUT 13 PER CENT VINYL ACETATE AND ABOUT 2 PER CENT MAELIC ACID, FROM 12 TO 25 PER CENT BY WEIGHT OF METHYL METHACRYLATE POLYMER, AND FROM 1 TO 5 PER CENT BY WEIGHT OF A POLYMERIZATION CATALYST, DISSOLVED IN FROM 80 TO 45 PER CENT BY WEIGHT OF MONOMERIC METHYL METHACRYLATE, SAID PERCENTAGES TOTALLING 100 PER CENT, PASSING THE TWO SURFACES TOGETHER WITH THE COATING OF SAID SOLUTION THEREBETWEEN, AND SIMULTANEOUSLY EFFECTING POLYMERIZATION OF THE POLYMERIZABLE PORTION OF SAID SOLUTION BY SUBJECTING THE ASSEMBLY TO AN ELEVATED TEMPERATURE.