Metal silico-phosphate binders and foundry shapes produced there

Details Metal silico-phosphate binders and foundry shapes produced there Metal silico-phosphate binders and foundry shapes produced there

1982-01-25

1983-06-28

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 389, 164 37, 164528, B28B 734

Patent

active

043903703

ABSTRACT:
A binder and a hardener therefor for a foundry aggregate. The binder is a resin obtained by reacting phosphoric acid with a mineral silicate. The hardener is a linear alkali metal polyphosphate, ammonium polyphosphate, a source of polyvalent cations, potassium olivine phosphate and other metal silico-phosphates or aluminum dihydrogen phosphate or mixtures thereof. A process for manufacturing molds and cores from a mixture of said binder and hardener and foundry aggregate.

REFERENCES:
patent: 3316106 (1967-04-01), Montague et al.
patent: 3923525 (1975-12-01), Toeniskoetter et al.
patent: 4209056 (1980-06-01), Gardikes et al.
patent: 4247333 (1981-01-01), Ledder
patent: 4357165 (1982-11-01), Helferich et al.

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