The Dow Chemical Company

Avis L McCrary

James L Bertram

Louis L Walker

Fermin M Cortez

David A Wilson

John L Burba, Iii

Christopher P Christenson

Ha Q Pham

Thomas M Knobel

Jody R Berman

Wilfred C Meyer

Peter A Doty

Dennis L Steele

Arthur E Read, Jr

Steve A Sims

Michael G Stevens

Edgar F Hoy

Manuel C Tyler, Jr

Andrea H Hazlitt

Susan K Falcone

Stanley F Simpson

Betty J Smith

Coating formulations which behave as elastic solids having reversible stress-induced fluidity are prepared by creating a fluid having distributed therein effective amounts of ionic charge sites and countercharge sites. For instance, elastic solids having reversible stress-induced fluidity are prepared by combining liquid formulations with a dispersion of a small, but effective, amount of at least one crystalline mixed metal hydroxide conforming substantially to the formula

Coating composition comprising solids having reversible stress-induced

The 2-functional component of substituted phenol-aldehyde novolac resins is reduced. Epoxy novolac resins prepared from the novolac resin containing reduced quantities of 2-functional product exhibit increased Tg values when cured.

Substituted phenol-formaldehyde novolac resins containing reduced

Phenol-aldehyde novolac resins having reduced quantities of 2-functional material are prepared by removing all or part of the 2-functional material from this product resulting from reacting phenol with an aldehyde. Epoxy novolac resins prepared from the novolac resin containing less 2-functional product exhibit increased Tg values when cured.

Curable compositions containing epoxidized phenolformaldehyde resins

Compositions comprising (A) a halogenated phenoxy resin and (B) an advanced epoxy resin are useful in the preparation of electrical laminates when admixed with a suitable curing agent such as dicyandiamide.

Epoxy resin laminating varnish and laminates prepared therefrom

Phenol-formaldehyde resins containing reduced quantities of 2-functional

The 2-functional content of phenol-aldehyde novolac resins is reduced by water extraction. Epoxy novolac resins prepared from the novolac resin containing less 2-functional product exhibit increased Tg values when cured.

Method for reducing 2-functional components in novolac resins and epoxy

Compositions containing a relatively low equivalent weight epoxy resin and an advancement catalyst for reacting said epoxy resin with a polyhydric phenol are stable at high storage temperatures when the advancement catalyst is a phosphonium salt of phosphoric acid, phosphorous acid or polyphosphoric acid.

Stable precatalyzed epoxy resin compositions

High molecular weight epoxy resins containing hydrolyzed epoxy groups are prepared by reacting (A) a low molecular weight epoxy resin, and (B) a hydroxyl-containing compound in the presence of (C) a catalyst therefor and (D) an excess quantity of water and thereafter removing the excess water.

Method for preparing high molecular weight epoxy resins containing

A novel composition of matter comprising a color-inhibiting additive, such as sodium bisulfite, and cis-1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride or the cis-, trans- mixtures of 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride, is a non-yellowing antimicrobial formulation suitable for the preservation of aqueous organic mixtures such as emulsions, dispersions, latexes and solutions. The color-inhibiting agent may be added as a solid or as an aqueous solution wherein the weight ratio of adamantane to additive is from about 1:0.01 to about 1:4.

Non-yellowing compositions containing hexamethylenetetramine

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Lake Jackson, TX, United States of America

Avis L McCrary