Ppg Industries, Inc.

Mark A Harley

John F Grunewalder

Wen-Hsuan Chang

Edward E McEntire

Alan J Kaylo

Paul J Prucnal

A stable aqueous dispersion having a particle size in the range of about 10 to 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is used in a process for treating a cellulosic substrate resulting in a treated product. The aqueous dispersions used in treating the cellulosic substrate are stable for at least 20 days without externally added surfactant.

Process for treating cellulosic materials with stable aqueous

New organic silanes are claimed carrying at least one water-solubilizing moiety and at least one hydrophobic group suitable for preparing stable solutions or dispersions containing in excess of about five weight percent of such silanes.

Silanes carrying water-solubilizing and hydrophobic moieties

A stable aqueous dispersion having a particle size in the range of about 10 to about 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is claimed along with the process for treating a cellulosic substrate and the treated cellulosic product resulting therefrom. The aqueous dispersions are stable for at least 20 days without externally added surfactant.

Stable aqueous dispersions containing siloxanes for treating cellulosic

Adhesion of fluoropolymer capstock layer to thermoplastic substrates such as polyvinyl chloride is achieved without the need for an intermediate adhesive layer while maintaining adequate impact resistance and processing properties by blending with the fluoropolymer a selected combination of acrylic polymers. The fluoropolymer-acrylic polymer blend includes a first acrylic polymer having a major methyl methacrylate monomeric component and a second acrylic polymer having a major ethyl methacrylate component.

Fluoropolymer blend for coextrusion onto thermoplastic substrates

Disclosed is a method for providing a wood substrate with durability against weathering comprising at least two steps (A) and (B). Step (A) consists of appying to the wood substrate a transparent treatment comprising an organosilicon-containing compound having at least one hydrolyzable silyl group in a carrier for said compound. Step (B) consists of thereafter coating the wood substrate with a transparent, film-forming, coating composition. The coating composition is characterized in that a transparent free film from the coating composition retains an elongation of at least 20 percent after at least 1,000 hours exposure in a Xenon Weatherometer.

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Oakmont, PA, United States of America

Mark A Harley