WATER DISPERSION TYPE PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND METHOD FOR PRODUCING THE SAME, AND ADHESIVE SHEET

摘要

PROBLEM TO BE SOLVED: To provide a water dispersion type pressure-sensitive adhesive composition which gives adhesive sheets which have excellent stability in the molecular weights of solvent insolubles and solvent solubles and in the terminal peeling resistance of the sheets with the passage of time. SOLUTION: This water dispersion type pressure-sensitive adhesive composition contains a polymer obtained by copolymerizing a monomer composition containing an alkyl (meth)acrylate as a main component and a silane-based monomer. The composition may be a water dispersion type pressure-sensitive adhesive composition which contains a polymer obtained by copolymerizing a monomer composition containing an alkyl (meth)acrylate as a main component and giving a resin composition having a solvent-insoluble content of <=5%, when polymerized in the state of a composition not containing a silane-based monomer, and the silane-based monomer in an amount of 0.005 to 1 pt.wt. per 100 pts.wt. of the monomer mixture under the same condition as above.