Two part hybrid adhesive
AssigneeHenkel US IP LLC
InventorsYongxia Wang, Charles W. Paul
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Abstract
Provided are two part hybrid adhesives that comprise an organoborane amine complex, a polyamine, a component polymerizable by free radical polymerization, and a polyisocyanate component. An isocyanate terminated prepolymer can advantageously be used in the practice of the invention. The adhesive is particularly well suited for low surface energy plastic bonding.
Claims8
A polymerizable adhesive composition comprising an organoborane amine complex and a polyamine with a nitrogen to boron atomic ratio of less than 4, an isocyanate-terminated prepolymer made from an excess of isocyanate with polyol or polyamine, a free radically polymerizable component, and substantially no polyol.
A polymerizable adhesive composition comprising an organoborane amine complex, a polyamine component, a free radically polymerizable component, an isocyanate-terminated prepolymer made from an excess of isocyanate with polyol or polyamine, said composition comprising more than 50 wt % of urea, and substantially no polyol.
(canceled)
A polymerizable adhesive composition comprising an organoborane amine complex, a polyamine component, a free radically polymerizable component, and an isocyanate-terminated prepolymer made from an excess of isocyanate with polyol or polyamine.
6-11. (canceled)
A polymerizable adhesive composition comprising an organoborane amine complex and a polyamine with a nitrogen to boron atomic ratio of less than 4, a polyisocyanate component, a free radically polymerizable component, and substantially no polyol.
Dependencies are inferred from the claim text.