ADHESIVE FOR CIGARETTE TIP AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To provide an adhesive for cigarette tip excellent in its initial adhesiveness showing its adhesion force in a short time. SOLUTION: This aq. adhesive is obtd. by combining a plasticizer and an aq. polymer emulsion contg. a vinyl acetate polymer as a polymer particle using a modified polyvinyl alcohol contg. a carboxy group and a 5-15C alkyl group as an emulsifier, and it may contain a water-soluble polymer. The glass transition temp. (Tg) of the vinyl acetate polymer is about -30-70 deg.C and the average particle diameter is about 0.01-5μm. The content of the modified polyvinyl alcohol is about 1-20 pts.wt. of 100 pts.wt. of the polymer particle (or the total of its monomer) in the aq. polymer emulsion.