Hot melt adhesive compositions
AssigneeExxon Research & Engineering Co.
InventorsPawan K. Agarwal, Henry S. Makowski, deceased
Life of this patent
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Abstract
This invention relates to hot melt adhesive compositions which includes a neutralized sulfonated polystyrene resin wherein the neutralized sulfonated polystyrene resin has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated polystyrene resin and about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, aliphatic dienes and mono and diolefins, cyclic olefins of 5 or 6 carbon atoms and hydrogenated poly cyclics per 100 parts by weight of the neutralized sulfonated polystyrene resin. Additionally, an unsaturated hydrocarbon polymer such as polyisoprene and polybutadiene can be incorporated into the adhesive compositions.
Claims10
A hot melt adhesive composition which comprises:
- (a) a highly unsaturated polybutadiene or polyisoprene hydrocarbon rubber;
- (b) a neutralized sulfonated polystyrene resin said neutralized sulfonated polystyrene having about 80 to 250 meq. of neutralized sulfonated groups per 100 grams of said neutralized sulfonated polystyrene resin;
- and
- (c) about 25 to about 200 parts by weight of a hydrocarbon tackifying resin based on a petroleum or coal tar distillate per 100 parts by weight of said neutralized sulfonated polysytrene resin.
Dependencies are inferred from the claim text.