Resin coated sand for casting

Details Resin coated sand for casting Resin coated sand for casting

B - Operations, Transporting

22

C

22/164, 117/48

B22C 1/22 (2006.01) C08G 8/04 (2006.01) C08L 61/06 (2006.01)

Patent

CA 1211997

ABSTRACT A phenolic resin for application in foundry shell molding operations having improved properties is disclosed. The phenolic resin is prepared by reacting aldehydes and a mixture of bisphenol A and bisphenol F to prepared a phenolic resin for coating foundry aggregates or sand to prepare shell molds having low thermal expansion and improved shake out properties.

439818

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