Patent ID: 8092907

Claim:
A pressure-sensitive adhesive composition, which comprises a (meth)acryl-based polymer containing, as a main component, a (meth)acryl-based monomer having an alkyl group of a carbon number of 6 to 14, wherein the pressure-sensitive adhesive composition contains an ethylene oxide group-containing compound and an alkali metal salt, and the alkali metal salt is contained at an amount of less than 1 part by weight relative to 100 parts by weight of the (meth)acryl-based polymer, wherein the (meth)acryl-based polymer has a weight average molecular weight of 100,000 to 5,000,000 and the ethylene oxide group-containing compound has a number average molecular weight of 10,000 or less, and wherein the (meth)acryl-based polymer has an acid value of 29 or less.