Ppg Industries, Inc.

John F Grunewalder

John S Ostrowski

Mark A Harley

Nicholas T Castellucci

Wen-Hsuan Chang

Edward E McEntire

Alan J Kaylo

Paul J Prucnal

William A Essary

Mark A Voelker

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

A treating composition for a porous substrate such as wood is provided in the form of an oil-in-water dispersion comprising a dispersed phase of an organic solvent in relatively low amounts to reduce V.O.C., a water repellent, and a stabilizing surfactant. Optionally, preservatives and resins may be included. Penetration with relatively low organic solvent content is achieved by producing a dispersion having a maximum mean particle size of 3000 .ANG.. Also disclosed is a method of preparing the dispersion with a microfluidizer.

Water-borne treatment compositions for porous 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.

Transparent coating system for providing long term exterior durability

Disclosed is a method of imparting water solubility or dispersibility to the reaction product of a polyepoxide and a mercapto-substituted triazole, a mercapto substituted tetrazole or a mixture thereof, by admixture with a base in an amount at least sufficient to water solubilize the azole-functional reaction product. Also disclosed is a method of using the above water solubilized reaction product in an electrodeposition process.

Base solubilization of an azole-functional resin and electrodeposition

Water repellent treating compositions are based upon olefin and paraffin materials containing a substantial proportion of compounds containing from 20 to 24 carbon atoms. The treating compositions are especially useful for application to wood. Additives such as wood preservatives, alkyd resins and, in especially preferred compositions, organic ionizable compounds are included. The preferred compositions are useful for application to wood substrates which are subsequently electrostatically sprayed with a topcoating.

Treatment of wood with water repellent compositions

Water repellent compositions for the treatment of wood

The invention is directed to an article comprising a thin film of silver and/or copper contacted with a compound selected from the group consisting of a thiadiazole substituted by a mercapto group and/or an amino group and a triazole substituted by a mercapto and optionally an amino group. The invention is also directed to a method of protecting a silver and/or copper metallic film by contacting the film with a compound selected from the above group.

Silver and copper coated articles protected by treatment with mercapto

The invention is directed to curable compositions comprising an azole-functional resin and a labile metal-ligand complex. The azole-functional resin is the reaction product of a monomeric or polymeric resin and a reactive N-heterocyclic compound containing at least two nuclear nitrogen atoms in a 5-membered ring structure capable of forming stable metal-ligand complexes. Mixtures of azole-functional resins also may be used with the labile-metal ligand complexes in the compositions of the invention.

Curable compositions comprising an azole-functional resin and a

The invention is directed to resins which are the reaction product of an amino or mercapto substituted azole and a polyepoxide wherein the ratio of equivalents of the azole to the polyepoxide is from about 0.5:1.0 to about 1.5:1.0, preferably from about 0.9:1.0 to about 1.1:1.0. The resins can be acid or base solulized depending on whether amino or mercapto substituted azoles were used in their preparation. The invention is also directed to storage stable compositions which cure at relatively low temperatures in short periods of time comprising specified amounts of the resin containing azole-functionality, polyepoxides, organic solvents, and optionally pigments and additives.

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Glenshaw, PA, United States of America

John F Grunewalder