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AssigneeOlin Corporation
InventorsKiran B. Chandalia, Michael J. Morgan, James M. O'Connor, Stephen L. Goldstein
Estimating the term…
This invention relates to a process for coating a substrate comprising contacting the substrate with a low volatile organics, moisture curable, two-component coating composition comprising an admixture of an A-side and a B-side, said A-side comprising an aliphatic polyisocyanate having an isocyanate index relative to the number of isocyanate-reactive groups in said coating composition of at least about 200, preferably at least about 300, more preferably at least about 500, said B-side comprising a tertiary amine catalyst and optionally an isocyanate-reactive compound selected from the group consisting of monoahls, polyols, imines, oxazolidines, and combinations thereof, said coating composition optionally containing a solvent in an amount of less than about 45%, based upon the weight of the polyisocyanate in said coating composition, said coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds, said composition being essentially free of any volatile mono- and di-isocyanates, and said composition being moisture curable upon exposure to atmospheric moisture. Also claimed is the coating composition itself.
A process for coating a substrate comprising contacting the substrate with a low volatile organics, moisture curable, two-component coating composition comprising an admixture of an A-side and a B-side, said A-side comprising a polyisocyanate selected from the group consisting of aliphatic polyisocyanates, cycloaliphatic polyisocynates, and combinations thereof, and containing at least one moiety selected from the group consisting of biuret, isocyanurate, uretidione, urethane, and allophanate moieties, and combinations thereof, and having an isocyanate index relative to the number of isocyanate-reactive groups in said coating composition of at least about 200, said B-side comprising a tertiary amine catalyst and an isocyanate-reactive compound selected from the group consisting of monoahls, said coating composition containing a solvent in an amount of between 0% and 45%, based upon the weight of the polyisocyanate in said coating composition, said coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds, said composition being essentially free of any volatile mono- and di-isocyanates, and said composition being moisture curable upon exposure to atmospheric moisture.
A low volatile organics, moisture curable, two-component coating composition comprising an admixture of an A-side and a B-side, said A-side comprising a polyisocyanate selected from the group consisting of aliphatic polyisocyanates, cycloaliphatic polyisocynates, and combinations thereof, and containing at least one moiety selected from the group consisting of biuret, isocyanurate, uretidione, urethane, and allophanate moieties, and combinations thereof, and having an isocyanate index relative to the number of isocyanate-reactive groups in said coating composition of at least about 200, said B-side comprising a tertiary amine catalyst and an isocyanate-reactive compound selected from the group consisting of monoahls, said coating composition containing a solvent in an amount of between 0% and 45%, based upon the weight of the polyisocyanate in said coating composition, said coating composition having a viscosity as measured by ZAHN cup 2 of less than about 200 seconds, said composition being essentially free of any volatile mono- and di-isocyanates, and said composition being moisture curable upon exposure to atmospheric moisture.
Dependencies are inferred from the claim text.