Patent ID: 8574698
Filing Date: 2013-11-05
Classification: B32B,Y10T

Abstract:
1. A water-based heat-expandable adhesive panel, comprising a substrate layer functioning as a base layer, a primer layer coated on the substrate layer and a heat-expandable layer coated on the primer layer, characterized in that the primer layer is synthesized by performing emulsion polymerization on an ethylene-based emulsifier having a reactive functional group and acrylic monomers to form a water-based acrylic emulsion, adding a water-based cross-linking agent and a coupling agent to the water-based acrylic emulsion, and then drying the water-based acrylic emulsion; and wherein the heat-expandable layer comprises a blowing agent and a pressure-sensitive adhesive expandable when heated and is synthesized by performing emulsion polymerization on the ethylene-based emulsifier having a reactive functional group and the acrylic monomers to form the water-based acrylic emulsion, followed by blending the water-based acrylic emulsion, the blowing agent, and the water-based cross-linking agent together.