Ashland Oil, Inc.

John J Gardikes

William R Dunnavant

Heimo J Langer

Robert Bernard Fechter

Richard H Toeniskoetter

Young D Kim

Certain carboxylic acids are used in polyurethane-forming binder compositions to extend the bench life of such compositions. The binder compositions are particularly useful for preparing sand castings used for making foundry parts.

Cold-box process for forming foundry shapes which utilizes certain

Polyurethane-forming binder compositions containing certain carboxylic

A binder containing a phenolic resin, a polyisocyanate, and an organohalophosphate and use thereof.

Phenolic resin-polyisocyanate binder systems containing an

A binder composition containing a phenolic resin, a polyisocyanate, a phosphorus based acid and optionally an acid halide and/or a base, and methods of making and using the same.

Phenolic resin-polyisocyanate binder systems containing a phosphorus

A binder composition containing a phenolic resin in an organic solvent, a polyisocyanate, wherein said organic solvent is substantially free from polar solvents, and methods of making and using the same.

Phenolic resin-polyisocyanate binder systems

A binder containing a phenolic resin; a polyisocyanate; a curing component, and a phosphorus halide and use thereof.

A composition containing furfuryl alcohol and an ester of a polyol and resin acid; and use thereof in foundry binders.

Composition containing furfuryl alcohol and use thereof in foundry

Dibasic esters and blends of dibasic esters, particularly diethyl malonate, dimethyl adipate, dimethyl glutarate and dimethyl succinate are used as part or all of the solvent in solvent systems for two-package resin compositions comprising a phenolic resin component and a polyisocyanate hardener package and, in three-package systems.

Phenolic resin-polyisocyanate binder systems containing dibasic ester

A binder containing a phenolic resin; a polyisocyanate; a curing component, and a drying oil; and use thereof.

Phenolic resin-polyisocyanate binder systems containing a drying oil and

Disclosed are foundry binder compositions comprising boronated aluminum phosphate and water, cured by contacting them with gaseous ammonia or an amine. Optionally, the composition may also include alkaline earth metals and oxides, and solid polyhydric alcohols or solid organic carboxylic acids.

Aluminum phosphate binder composition cured with ammonia and amines

Phenolic resin-polyisocyanate binder systems comprising aqueous emulsions of a phenolic resin and a liquid polyisocyanate and a tertiary amine or metal ion curing agent can be made and used free of organic solvents, thereby providing improved environmental conditions. These binders are useful as foundry core and mold binders in both cold box and no bake operations.

Phenolic resin-polyisocyanate binders

Disclosed are foundry binder compositions comprising boronated aluminum phosphate and water, cured by contacting them with gaseous ammonia or an amine. Optionally the composition may also include alkaline earth metals and oxides, and solid polyhydric alcohols or solid organic carboxylic acids.

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Worthington, OH, United States of America

John J Gardikes