Foundry binders

Details Foundry binders Foundry binders

B - Operations, Transporting

22

C

400/7428

B22C 1/22 (2006.01) C08G 18/32 (2006.01) C08G 18/66 (2006.01) C08G 18/80 (2006.01)

Patent

CA 1082833

ABSTRACT A foundry composition for use in forming foundry moulds or cores comprises an aggregate mixed with a binder which includes a polyisocyanate, a polyfunctional phenol and an aliphatic polyol with the weight of the phenol exceeding that of the polyol. The composition may be used in a "cold -box" process.

287225

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