Foundry binder of polyurethane, phenolic resin, polyisocyanate a

Details Foundry binder of polyurethane, phenolic resin, polyisocyanate a Foundry binder of polyurethane, phenolic resin, polyisocyanate a

1997-11-28

1999-11-09

Sellers, Robert E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523455, 523463, B22C 122, C08K 501, C08L 6110

Patent

active

059816228

ABSTRACT:
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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