One part moisture curable urethane composition
AssigneeMinnesota Mining and Manufacturing Company
InventorJames J. Fong
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Abstract
The present invention relates to one-part, moisture-curable, urethane compositions suited as a coating for wood. The composition comprises trisocyanate prepolymer, an epoxy silane, and compatible solvent.
Claims6
One-part moisture-curable polyurethane composition, consisting essentially of triisocyanate prepolymer, an amount of an epoxy silane compund effective to crosslink said prepolymer and sufficient compatible liquid vehicle to make the composition suitable for application, said epoxy silane compund being sufficiently free of active hydrogen-containing functional groups to avoid premature gelation of the prepolymer when combined therewith.
One-part moisture-curable polyurethane composition, consisting essentially of triisocyanate prepolymer, a sufficient amount of diisocyanate prepolymer to improve the flexibility of the cured composition, an amount of an epoxy silane compund effective to cross-link said prepolymers and sufficient compatible liquid vehicle to make the composition suitable for application, said epoxy silane compound being sufficiently free of active hydrogen-containing functional groups to avoid premature gelation of the prepolymers when combined therewith.
Dependencies are inferred from the claim text.