Polyurethane coatings for direct application to polyurethane pultrusion
AssigneeCovestro LLC
InventorsDavid P. Zielinski, Derick Henderson, Mark Conner
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Abstract
The present invention provides a polyurethane coating composition comprising a fluorosurfactant, a silane adhesion promoter, and a silane modified polyisocyanate, wherein the composition has excellent substrate wet-out and adhesion under direct wet-on-hot and cold spray applications. The coating composition is particularly well suited to use with polyurethane pultrusion composites.
Claims29
A polyurethane coating composition comprising:
- a fluorosurfactant, a silane adhesion promoter, and a silane modified polyisocyanate,
- wherein the composition has excellent substrate wet-out and adhesion under direct wet-on-hot and cold spray applications.
A method of making a polyurethane coating composition comprising:
- reacting a fluorosurfactant, a silane adhesion promoter, and a silane modified polyisocyanate.
A substrate coated with a polyurethane coating composition comprising:
- a fluorosurfactant, a silane adhesion promoter, and a silane modified polyisocyanate,
- wherein the composition has excellent substrate wet-out and adhesion under direct wet-on-hot and cold spray applications.
A polyurethane pultrusion composite coated with a polyurethane coating composition comprising:
- a fluorosurfactant, a silane adhesion promoter, and a silane modified polyisocyanate,
- wherein the composition has excellent substrate wet-out and adhesion under direct wet-on-hot and cold spray applications.
Dependencies are inferred from the claim text.