Patent ID: 6305143
Filing Date: 2001-10-23
Classification: C08G,E04D

Abstract:
A method of adhering roofing material to a roof deck, comprising;A. applying a one-part, moisture curable, foaming, polyurethane adhesive composition, consisting essentially of;i. an isocyanate terminated prepolymer prepared from at least one organic polyisocyanate and at least one composition containing at least two isocyanate reactive moieties, andii. a reversibly blocked catalyst, consisting essentially of; the addition product of a sulfonyl isocyanate and a tertiary amine and/or a tin (II) or tin (IV) carboxylate composition; to a roof deck;B. positioning the roofing material on the deck with sufficient pressure to seat the roofing material in the polyurethane adhesive composition; andC. allowing the polyurethane composition to foam, fill and cure.