Ppg Industries, Inc.

Naomi R Suss

Samuel Porter, Jr

Marvis E Hartman

Leon A Perez

A method of forming a multilayered coating on a substrate involves the steps of:

Method for preparing multi-layered coated articles and the coated

Disclosed is a method for coating a substrate comprising the steps of: (A) coating the substrate with one or more applications of a basecoating composition comprising (1) an organic film-forming resin, (2) an organo-modified clay stably dispersed in the basecoating composition, (3) a solvent system for the film-forming resin, and (4) pigment particles, to form a basecoat; and (B) coating the basecoat with one or more applications of a topcoating composition comprising (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat.

Color plus clear coating system utilizing organo-modified clay

Disclosed is a method for coating a substrate comprising the steps of: (A) coating the substrate with one or more applications of a basecoating composition comprising (1) an organic film-forming resin, (2) a solvent system for the film-forming resin, (3) an organo-modified clay and organic polymer microparticles both of which are undissolved in the solvent system for the film-forming resin and are stably dispersed in the basecoating composition, and (4) pigment particles, to form a basecoat, and; (B) coating the basecoat with one or more applications of a topcoating composition comprising (1) an organic film-forming resin, and (2) a solvent system for the organic film-forming resin of the topcoating composition, to form a transparent topcoat.

Color plus clear coating system utilizing organo-modified clay in

Disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin having a weight average molecular weight of from 300 to 15,000; (B) an organo-modified clay dispersed in the coating composition; and (C) a solvent system for the crosslinkable resin. Also disclosed is an essentially solvent-based, organic, high-solids coating composition containing (A) a film-forming binder system containing a crosslinkable resin; (B) an organo-modified clay dispersed in the coating composition; (C) a solvent system for the crosslinkable resin; and (D) organic polymeric microparticles which are insoluble in the solvent system for the crosslinkable resin and which have a diameter in the range of from about 0.01 to about 10 microns.

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Pittsburgh, PA, United States of America

Naomi R Suss