BINDER COMPOSITIONS FOR FOUNDRY MIXES,FOUNDRY MIXES OBTAINED THEREWITH AND METHOD OF MOULDING SUCH MIXES AND ADDITIVES FOR USE THEREIN

摘要

A binder composition for making molded products in conjunction with an aggregate includes in admixture a resin component comprising an organic solvent solution of a non-aqueous phenolic resin, a hardener component comprising a liquid polyisocyanate containing at least two isocyanate groups, the resin component and hardener component being curable by a curing agent, and an additional component comprising an oil-soluble phenolic resin dissolved in a drying oil and partially cross-linked therewith.