Amine cured foundry binder systems containing an acrylate...

Details Amine cured foundry binder systems containing an acrylate... Amine cured foundry binder systems containing an acrylate...

B - Operations, Transporting

22

C

B22C 1/22 (2006.01) B22C 9/02 (2006.01) B22D 15/00 (2006.01)

Patent

CA 2325162

The subject invention relates to a two component foundry binder system that cures in the presence of an amine curing catalyst, preferably a volatile amine. One component of the binder system comprises (1) an effective amount of an oxidizing agent, and preferably (2) an epoxy component. The other component comprises (1) an organic polyisocyanate, (2) and (2) an acrylate monomer having at least two acrylate functional groups selected from the group consisting of ketal, acetal and formal acrylate monomers. The foundry binders are used for making foundry mixes. The foundry mixes are used to make foundry shapes, such as molds and cores, which are used to make metal castings.

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