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US 4,361,672 AGranted
Hot melt adhesive compositions
AssigneeExxon Research & Engineering Co.
InventorsPawan K. Agarwal, Vincent L. Hughes, Robert D. Lundberg
Life of this patent
Estimating the term…
Abstract
This invention relates to hot melt adhesive compositions which includes a hydrogenated block copolymer block such as Kraton G, about 25 to about 250 parts by weight of a hydrocarbon resin made from a petroleum or coal tar distillate, aliphatic dienes and mono and diolefins, cyclic olefins of 5 to 6 carbon atoms and hydrogenated polycyclics per 100 parts by weight of the hydrogenated block copolymer, and about 25 to about 200 parts by weight of a polybutene or polyisobutylene per 100 parts of the hydrogenated block copolymer.
Claims3
A hot melt adhesive composition which comprises:
- (a) a hydrogenated block copolymer of polystyrene and a hydrogenated polydiene, said diene being selected from the group consisting of polybutadiene and polyisoprene;
- (b) about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate per 100 parts by weight of said hydrogenated block copolymer;
- and
- (c) about 25-200 parts by weight of polybutene or polyisobutylene per 100 parts of said hydrogenated block copolymer.
1 more element
Dependencies are inferred from the claim text.