Compositions: coating or plastic – Coating or plastic compositions – Molds and mold coating compositions
Patent
1993-01-22
1994-12-13
Group, Karl
Compositions: coating or plastic
Coating or plastic compositions
Molds and mold coating compositions
106 389, C04B 2826
Patent
active
053726367
ABSTRACT:
A composition for use in producing a foundry mold, a foundry mold of the composition and a method for making the foundry mold from the composition. The composition includes sodium smectite clay and at least one of a metal oxide, hydroxide or salt as a mineral clay component of the composition. This mineral clay component is present in the composition along with water and foundry sand. The metal of the oxide, hydroxide or salt may be aluminum, calcium, iron, potassium, magnesium, boron or zinc. The sodium smectite clay may be at least one of bentonite, hectorite or saponite.
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Gray Steven R.
Miles, Jr. William J.
Bentonite Corporation
Gallo Chris
Group Karl
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