Waterborne anti-chip primer coating composition
AssigneePPG Industries Ohio, Inc.
InventorsPaul H. Lamers, Christopher A. Verardi, Michele L. Meli, Carolyn A.K. Novak
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Abstract
The present invention is directed to towards a waterborne anti-chip primer coating composition comprising a polyester polyol having a molecular weight ≧1500 wherein the polyester polyol comprises ≧30 weight % of the total resin solids of the waterborne anti-chip primer coating composition; and wherein after application to a substrate as a coating and after curing has a dry film thickness ranging from 2 μm to 8 μm.
Claims21
A waterborne anti-chip primer coating composition comprising a polyester polyol having a molecular weight ≧1500 wherein the polyester polyol comprises ≧30 weight % of the total resin solids of the waterborne anti-chip primer coating composition;
- and wherein after application to a substrate as a coating and after curing has a dry film thickness ranging from 2 μm to 8 μm.
A method of coating a substrate comprising:
- applying a waterborne anti-chip primer coating composition onto at least a portion of the substrate, wherein the waterborne anti-chip primer coating composition comprises a polyester polyol having a molecular weight ≧1500, and wherein the polyester polyol comprises ≧30 weight % of the total resin solids of the waterborne anti-chip primer coating composition;
- and
- curing said waterborne anti-chip primer coating composition such that the waterborne anti-chip primer coating composition has a dry film thickness ranging from 2 μm to 8 μm.
A substrate comprising a coating system wherein the coating system comprises an anti-chip primer coating layer having a dry film thickness ranging from about 2 μm to 8 μm, and wherein the anti-chip primer coating layer results from a waterborne anti-chip coating composition comprising a polyester polyol wherein the polyester polyol has a molecular weight ≧1500, and wherein the polyester polyol comprises ≧30 weight % of the total resin solids of the waterborne anti-chip primer coating composition.
A waterborne anti-chip primer coating composition comprising the reaction product of a polyester polyol having a molecular weight ≧1500 and a polymerizable ethylenically unsaturated monomer, wherein the reaction product comprises ≧30 weight % of the total resin solids of the waterborne anti-chip primer coating composition;
- and wherein after application to a substrate as a coating and after curing has a dry film thickness ranging from 2 μm to 8 μm.
Dependencies are inferred from the claim text.