NOVEL PRESSURE SENSITIVE ADHESIVES COMBINING HIGH COHESIVE STRENGTH AND AGRESSIVE TACK

摘要

This invention relates to a pressure sensitive adhesive composition which includes a neutralized sulfonated copolymer of a conjugated diene/ a neutralized styrene sulfonate, wherein the neutralized sulfonated copolymer has 5 to 50 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having 5 to 6 carbon atoms, the hydrocarbon resin being composed of aliphatic dienes and mono-olefins per 100 parts by weight of the neutralized sulfonated copolymer.