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US 8,507,050 B2Granted
Methods for depositing ultra thin coatings exhibiting low haze and methods for the preparation of such coatings
AssigneePPG Industries Ohio, Inc.
InventorsDennis L. Faler, Shawn A. DeSaw
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Abstract
Disclosed are methods for depositing an ultra thin coating that exhibits both low haze (high transparency) and strong color (high optical density at a given film thickness). Also disclosed are methods for making radiation curable coating compositions comprising polymer-enclosed particles that are suitable for producing ultra thin coatings.
Claims17
A method for coating a non-cellulose based substrate, comprising:
- (a) depositing a composition on the substrate, the composition comprising:
- (i) at least 20 percent by weight, based on the total solids weight of the composition, of organic pigment nanoparticles;
- and
- (ii) a binder in which the nanoparticles are dispersed;
- and
- (b) curing the binder to form a cured ultra-thin coating that has low haze and a dry film thickness of no more than 2 microns, wherein the cured ultra-thin coating comprises at least 20 percent by weight, based on the total solids weight of the coating, of organic pigment nanoparticles.
3 more elements
Dependencies are inferred from the claim text.