Composition for providing an abrasion resistant coating on a substrate
AssigneeSDC Coatings, Inc.
InventorsJanet L. Havey, Tuan H. Ho, Allen M. Guest, Karl W. Terry, Mark S. Sollberger
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Abstract
Compositions having improved stability which, when applied to a variety of substrates and cured, form transparent coatings having superior abrasion resistant properties. The coating compositions are aqueous-organic solvent mixtures containing a mixture of hydrolysis products and partial condensates of an epoxy functional silane and a tetrafunctional silane and a multifunctional compound selected from the group consisting of multifunctional carboxylic acids, multifunctional anhydrides and combinations thereof.
Claims34
A process for providing a substantially transparent, abrasion resistant coating on a substrate, comprising:
- applying to at least one surface of a substrate an effective amount of an aqueous-organic solvent mixture to provide a substantially uniform coating on the substrate, the aqueous-organic solvent mixture comprising hydrolysis products and partial condensates of an epoxy functional silane, a tetrafunctional silane and a multifunctional compound wherein the multifunctional compound is selected from the group consisting of multifunctional carboxylic acids, multifunctional anhydrides and combinations thereof and wherein the epoxy functional silane is present in a molar ratio to the tetrafunctional silane of from about 0.1:1 to about 5:1;
- and
- curing the coating composition to produce a substantially transparent, abrasion resistant coating on the substrate.
Dependencies are inferred from the claim text.