Foundry mold and core wash additives

Details Foundry mold and core wash additives Foundry mold and core wash additives

1978-01-03

1980-03-25

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3822, 106236, 106237, 106241, 427134, B28B 738

Patent

active

041949153

ABSTRACT:
Additives useful in producing foundry mold and core washes comprise either: a mixture of 66.75% to 80.05% of an organophilic clay and 19.95% to 33.25% of an alcohol soluble, hexane insoluble thermoplastic resin skin-forming agent; or 7.15% to 15.25% of an organophilic clay, 2.85% to 4.75% of the skin forming agent, and 80% to 90% of a refractory material having a particle size fo 200 mesh or finer.

REFERENCES:
patent: 2270770 (1939-11-01), Ray
patent: 3027265 (1962-03-01), Miericke
patent: 3403037 (1968-09-01), Cowan et al.

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