Sdc Technologies, Inc.

Sdc Coatings, Inc.

Bryan S Lembo

Karl W Terry

The present invention discloses compositions as well as methods of making and using said compositions, having improved stability which, when applied to a variety of substrates and cured, form transparent coatings which have abrasion resistant properties, a matched refractive index to that of the substrate, and which can be tailored to control the extent of tint absorption (vide infra). The compositions comprise an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, and a disilane. The coating compositions may further include a mixture of hydrolysis products and partial condensates of one or more silane additives, a colloidal silica material, and a tetrafunctional silane.

Composition for providing an abrasion resistant coating on a substrate with a matched refractive index and controlled tintability

The present invention discloses articles containing a coating composition, as well as methods of making and using the compositions which, when applied to a substrate and cured, provide articles having transparent abrasion resistant coatings, wherein the coatings have a matched refractive index to that of the substrate and can be tailored to control the extent of tint absorption (vide infra). The coating compositions comprise an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, and a disilane. The coating compositions may further include a mixture of hydrolysis products and partial condensates of one or more silane additives, a colloidal silica material, and a tetrafunctional silane.

A process for providing a coating composition which, provides an abrasive resistant coating having a refractive index of the substrate and controlled tintability. The composition which, when applied to at least one surface of a substrate comprises an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, a disilane and an effective amount of a leveling agent for permitting the aqueous-organic mixture to spread on the substrate and thereby provide substantially uniform contact of the aqueous-organic mixture with the substrate. The coating compositions may further include a mixture of hydrolysis products and partial condensates of one or more silane additives, a colloidal silica material, and a tetrafunctional silane.

The present invention discloses compositions as well as methods of making and using said compositions, having improved stability which, when applied to a variety of substrates and cured, form transparent coatings having abrasion resistant properties and a matched refractive index to that of the substrate. The compositions comprise an aqueous-organic solvent mixture containing a mixture of hydrolysis products and partial condensates of an epoxy-functional silane, a carboxylic acid functional compound selected from the group consisting of carboxylic acids, multifunctional carboxylic acids, anhydrides, and combinations thereof, a metal oxide composite colloid, a colloidal silica material, and a tetrafunctional silane. The coating compositions of the present invention may further include a mixture of hydrolysis products and partial condensates of one or more silane additives.

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Newport Beach, CA, United States of America

Bryan S Lembo