METHOD FOR HEAT SEALING WITH AN AQUEOUS POLYACRYLATE DISPERSION

摘要

A method for heat sealing, especially for heat sealing coated aluminum foils to polystyrene or polyvinyl chloride, employing hot melt adhesive which is an aqueous dispersion of a polyacrylate polymer comprising at least 70 percent by weight of lower alkyl methacrylates, said dispersion further containing polymerized acrylamide or methacrylamide or aminoalkyl acrylate or methacrylate, present as a separate polymer and/or copolymerized into said polyacrylate polymer.