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US 7,740,699 B2Granted
Orthoformate-protected polyols
AssigneeE.I. du Pont de Nemours and Company
InventorsAlexei A. Gridnev, Thomas Robert Darling
Life of this patent
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Abstract
Disclosed herein are coating compositions comprising a blocked polyol having a first hydroxyl group at position 1 carbon atom and a second hydroxyl group at position 2 or 3 carbon atom, wherein both the first and the second hydroxyl groups are blocked by a single hydrolyzable orthoformate group; and a polyisocyanate compound. Methods of producing and using said coating compositions are also disclosed.
Claims4
A coating composition comprising:
- (a) a blocked polyol of the formula:
- a combination thereof,
- wherein R2 or R2′ is alkyl of 1 through 10 carbon atoms;
- and
- (b) one or more polyisocyanate compounds;
- wherein said blocked polyol is free from hydroxyl groups that are reactive with said one or more polyisocyanate compounds.
3 more elements
Dependencies are inferred from the claim text.