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US 5,614,604 AGranted
Coating thickeners comprised of silane-modified polyurethanes
AssigneeThe Sherwin-Williams Company
InventorRandolph B. Krafcik
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Abstract
This invention relates to silicon-containing polyurethane thickeners having particular utility in paints and coatings comprising the reaction product of an isocyanate functional material, a polyether polyol, a monofunctional, active-hydrogen containing, hydrophobic endcapping material, a silane-functional material, and water.
Claims11
A thickener composition comprising the reaction product of:
- (a) an isocyanate functional material,
- (b) a polyether polyol,
- (c) a monofunctional, active-hydrogen containing, hydrophobic endcapping material selected from the group consisting of C1-C24 alcohols, alkyl and alkaryl polyether alcohols;
- phenolics;
- alcohol ethers;
- and mixtures thereof,
- (d) an aminoalkyl silane material, and
- (e) water.
5 more elements
Dependencies are inferred from the claim text.