High gloss acrylic coatings with improved impact resistance
AssigneeShell Oil Company
InventorsLichang Zhou, Oliver Wendell Smith, Thomas Clayton Forschner, Wyndham Henry Boon, David Eric Gwyn, Shelby Freland Thames
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Abstract
Disclosed is an acrylic polyurethane coating composition characterized by improved impact resistance and high gloss and produced by reacting a polyol, optionally a catalyst, and a polyisocyanate crosslinking agent, wherein the polyol is substituted with 2 to 50% by weight of a polytrimethylene carbonate diol or triol.
Claims25
Acrylic polyurethane coating compositions characterized by improved impact resistance made by combining the following materials together at the same time:
- a) a polyol having an equivalent weight of about 300-1300;
- b) said polyol having incorporated therein 2 to 50% by weight of a polytrimethylene carbonate polyol;
- and
- c) a polyisocyanate crosslinking agent.
An acrylic polyurethane coating composition characterized by high impact resistance and high gloss made by combining the following materials together at the same time:
- a) An acrylic polyol having an equivalent weight in the range of 300 to 1300 dissolved in a suitable solvent to 40-70% solids;
- b) Said acrylic polyol having substituted therein 5 to 20% by weight of a polytrimethylene carbonate polyol selected from a polytrimethylene carbonate diol and polytrimethylene carbonate triol;
- and
- c) A trifunctional isocyanate.
Dependencies are inferred from the claim text.