Ashland Oil, Inc.

Young D Kim

William R Dunnavant

Heimo J Langer

Robert Bernard Fechter

John J Gardikes

Gary R Hysell

Richard F Hanesworth

Gary A Tolhurst

The subject invention relates to modifiers for aqueous basic solutions of phenolic resins. The modifiers are open-chain ether alcohols or ketone alcohols. They assist in stabilizing the aqueous basic solutions of phenolic resole resins and improve the tensile strength of foundry shapes prepared from foundry mixes made with the aqueous basic solutions.

Modifiers for aqueous basic solutions of phenolic resole resins

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

Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.

Cost reduction of acid curing foundry binders with alkylated aromatic

A process for preparing a water-compatible furan polymer which includes subjecting a composition containing at least one saturated aliphatic monohydric alcohol; water; furfuryl alcohol; aldehyde; and nitrogen-containing compound to condensation reaction at an acidic pH; and the product obtained thereby.

Preparation of furan polymers

A process for preparing a water-compatible furan polymer which includes subjecting a composition containing at least one saturated aliphatic monohydric alcohol; water; furfuryl alcohol; aldehyde; phenolic compound; and nitrogen-containing compound to condensation reaction at basic pH, and then subjecting the composition to a condensation reaction at an acidic pH; and the product obtained thereby.

Furan resin compositions containing aromatic polyester polyols exhibit improved performance as foundry hot box binders.

Furan binder composition

Disclosed is a phenol-formaldehyde resin for foundry core making having a free formaldehyde content of less than one percent and a water content of 10 to 12 percent.

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Columbus, OH, United States of America

Young D Kim