The Dow Chemical Company

James L Bertram

Louis L Walker

Fermin M Cortez

Edmund P Woo

Avis L McCrary

Joseph Gan

George A Doorakian

Zeng K Liao

John W Muskopf

Robert E Hefner, Jr

Jimmy D Earls

William Davis

Lawrence G Duquette

Pong S Sheih

Jody R Berman

Van I Stuart

William A Clay

Willie L Myles

Chun S Wang

Ha Q Pham

George E Ham

Ross C Whiteside, Jr

James A Clarke

Wuu-Nan Chen

Michael P Kubisiak

Guang-Ming Xia

Charlie Z Hotz

Lloyd A McCrary

A L McCrary

Craig E Schultz

Pong S Shih

Avis L McCruary

A process reaction between: (1) a compound that contains one or more epoxide moieties per molecule, and (2) a compound that contains one or more primary aliphatic hydroxyl groups per molecule; is catalyzed by: (3) a catalyst compound containing one or more trifluoromethanesulfonate moieties and one or more silyl moieties and run at a temperature of no more than 130.degree. C., such that the catalyst preferably catalyzes reaction at the primary aliphatic hydroxyl group, so that the resulting resin does not gel.

Process to react epoxide-containing compounds and aliphatic alcohols

A class of compounds which inhibits the reaction of a polyepoxide with a curing agent at low temperatures including an epoxy resin composition containing

Cure inhibited epoxy resin compositions and laminates prepared from the

Graft copolymer coating compositions

The invention pertains to a composition useful for curing a polyepoxide or advanced epoxy resin consisting essentially of (A) a curing agent capable of reacting with a polyepoxide at elevated temperatures; and (B) boric acid in an amount of from about 0.01 to about 2.0 parts of polyepoxide.

Curable compositions containing (A) one or more epoxy resins, one (B) or more curing agents and (C) one or more cure controlling catalysts wherein at least one of components (A) or (B) or both components (A) and (B) contain a mesogenic moiety are prepared. These curable compositions permit processing at higher temperatures and improved properties. They are useful in the preparation of coatings, castings, electrical or laminates or composites and the like.

Cure controlled catalyzed mixtures of epoxy resins and curing agents

Curable composition which comprises adducts of heterocyclic compounds

Laminates containing one or more plies of substrate material impregnated with a composition containing (A) one or more epoxy resins, (B) one or more curing agent and (C) about 0.00005 to about 0.1 mole per epoxide equivalent of cure controlling catalyst, wherein at least one of components (A) or (B) contain at least one mesogenic moiety, which, optionally, has been subjected to either (a) the application of an electric field, (b) the application of a magnetic field, (c) drawing or shear forces, or (d) any combination thereof, are prepared.

In summary, the invention is related to the discovery of a class of compounds which inhibits the reaction of a polyepoxide with a curing agent at low temperatures. More particularly the invention relates to an epoxy resin composition comprising

Glycidyl esters containing at least one glycidyl ester group and at least one organo siloxane moiety per molecule are prepared by reacting (1) at least one compound containing at least one glycidyl ester group per molecule and at least one unsaturated aliphatic or cycloaliphatic group per molecule; with (2) a compound containing at least one hydrosiloxane moiety per molecule.

Siloxane-containing glycidyl esters, curable compositions and cured

Products resulting from contacting (1) at least one compound selected from the group consisting of (a) at least one onium compound of the element nitrogen, phosphorus, sulfur or arsenic; (b) at least one amine compound; and (c) a mixture of any two or more of the (a) and (b) components; with (2) either (a) boric acid or (b) a mixture of boric acid and at least one acid having a weak nucleophilic anion are suitable catalysts for reacting vicinal epoxy-containing compounds with aromatic hydroxyl-containing compounds.

Latent catalysts, epoxy compositions incorporating same, and coating,

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

The products resulting from contacting an organic phosphine or arsine with an inorganic acid having a weak nucleophilic anion provide for relatively stable compositions when admixed with a compound containing an average of more than one vicinal epoxide group per molecule and which optionally contains a compound containing an average of more than one phenolic hydroxyl group per molecule.

Latent, curable, catalyzed mixtures of epoxy-containing and

Latent catalyst compounds for catalyzing the reaction between epoxide groups and aromatic hydroxyl groups are prepared by contacting a nitrogen-containing heterocyclic compound with an acid having a weak nucleophilic anion.

Growing community of inventors

Lake Jackson, TX, United States of America

James L Bertram