Urethane foundry binders resistant to water-based coatings

Details Urethane foundry binders resistant to water-based coatings Urethane foundry binders resistant to water-based coatings

C - Chemistry, Metallurgy

08

L

C08L 75/04 (2006.01) B22C 1/02 (2006.01) B22C 1/22 (2006.01) B22C 1/24 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2171055

Compositions and methods for improving the characteristics of foundry cores which includes adding to a foundry aggregate mixture polyurethane resin binder comprising epoxy resin and, preferably, paraffinic oil.

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