Acrylate-free binders containing an epoxy resin and an alkyl...

Details Acrylate-free binders containing an epoxy resin and an alkyl... Acrylate-free binders containing an epoxy resin and an alkyl...

2006-03-28

2006-03-28

Yoon, Tae H. (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S145000, C523S147000, C164S075000

Reexamination Certificate

active

07019047

ABSTRACT:
This invention relates to foundry binder systems, which cure in the presence of sulfur dioxide and an oxidizing agent, comprising (a) an epoxy resin; (b) an alkyl silicate; (c) an ester of a fatty acid, (d) an effective amount of a oxidizing agent, and (e) no ethylenically unsaturated monomer or polymer. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings, particularly ferrous castings.

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