Ester hardeners for phenolic resin binder systems

Details Ester hardeners for phenolic resin binder systems Ester hardeners for phenolic resin binder systems

C - Chemistry, Metallurgy

08

L

22/158, 400/5413

C08L 61/06 (2006.01) B22C 1/22 (2006.01) C08J 3/09 (2006.01) C08K 5/04 (2006.01) C08K 5/10 (2006.01)

Patent

CA 1339905

A hardener composition for alkaline phenolic resole resin binders which comprises a solution of a benzylic ether resole resin in an ester. Binder compositions comprising this hardener with alkaline phenolic resole resins are further provided as are foundry molding compositions and methods for making foundry cores and molds using the molding compositions.

615394

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