Phenol-ketone resin component foundry aggregate binders

Details Phenol-ketone resin component foundry aggregate binders Phenol-ketone resin component foundry aggregate binders

C - Chemistry, Metallurgy

08

L

400/4205, 400/54

C08L 61/16 (2006.01) B22C 1/20 (2006.01) B22C 1/22 (2006.01) C08G 8/02 (2006.01) C08G 16/00 (2006.01) C08G 18/64 (2006.01)

Patent

CA 1163398

377103 ABSTRACT Novel resin binders for Foundry sand molds and cores are provided by reacting a polyol component comprising a phenol ketone resin, a reactive solvent and a crosslinking agent in a solution for these components with a solution of an organic polyisocyanate. The foundry binder cures rapidly at ambient temperature in the presence of a tertiary amine curing agent to provide strong foundry molds and cores. Polyether polyols may also be incorporated in the polyol component of the novel resin binder.

377103

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