FOUNDRY MIXES AND THEIR USES

摘要

This invention relates to foundry mixes and their uses. The foundry mixes comprise (a) a foundry aggregate, and (b) a foundry binder comprising in admixture: (1) an acetoacetate ester; (2) an alpha , beta ethylenically unsaturated monomer; and (3) a liquid tertiary amine catalyst haivng a pK value of 12-14. The foundry mixes are used to prepare foundry shapes made from foundry mixes by a no-bake process.