Foundry mold and core composition

Details Foundry mold and core composition Foundry mold and core composition

1982-01-25

1985-06-11

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 389, 164528, B28B 734

Patent

active

045226512

ABSTRACT:
A combination of foundry aggregate, binder and hardener for the foundry aggregate wherein a linear metal polyphosphate or ammonium polyphosphate is used as the binder, and the hardener is phosphoric acid or a mixture of phosphoric acid and a source of polyvalent metal cations.

REFERENCES:
patent: 3044851 (1962-07-01), Young
patent: 3316106 (1967-04-01), Montague et al.
patent: 3333925 (1967-08-01), Young
patent: 3441374 (1969-04-01), Shen
patent: 3547670 (1970-12-01), Fuchs et al.
patent: 3923525 (1975-12-01), Toeniskoetter et al.
patent: 4126665 (1978-11-01), Ropp
patent: 4162300 (1979-07-01), Adrian et al.
N. H. Ray, Inorganic Polymers, pp. 27-33, Academic Press, 1978.

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