Patent ID: 7332219
Filing Date: 2008-02-19
Classification: C08L,C09J,H01B,Y10T

Abstract:
1. A tape-shaped insulating material, comprising an insulating substrate and a pressure-sensitive adhesive layer provided on one side or both sides of the substrate, wherein the pressure-sensitive adhesive layer is made of an aqueous dispersion type acrylic pressure-sensitive adhesive containing a crosslinking agent and a polymer emulsion that is a product of emulsion polymerization of monomer subunits in the presence of an emulsifying agent, wherein the monomer subunits of said polymer emulsion contain an alkyl (meth)acrylate ester monomer wherein the alkyl group has 4 to 12 carbon atoms, and a carboxylic acid monomer, wherein the crosslinking agent is an oxazoline crosslinking agent; and the tape-shaped insulating material has an electrolytic corrosion coefficient of 0.98 or more, wherein the carboxyl group-containing monomer has a distribution index of 1 or more, wherein the distribution index represents a weight ratio of a toluene solution of the carboxyl group-containing monomer to a water solution of the carboxyl group-containing monomer after the toluene, the water and the carboxyl group-containing monomer each having the same weight are mixed.