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Patents

Two-part polyurethane adhesive

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

Two-part polyurethane adhesive
Patent No. U.S. 7,205,374 B2
BFS Diversified Products has obtained a patent for a method for preparing two-part polyurethane adhesives for bonding insulation boards to a roof deck. The method is comprised of combining an isocyanate prepolymer with at least one trimerization catalyst including a potassium, sodium, or lithium p-nonylphenoxide, where the step of combining takes place at a temperature of from approximately 40-100° F.

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