Foundry compositions containing propylene glycol monoacetate

Details Foundry compositions containing propylene glycol monoacetate Foundry compositions containing propylene glycol monoacetate

1978-10-27

1980-04-22

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 3835, 1062891, C04B 1904

Patent

active

041993659

ABSTRACT:
The present invention relates to foundry compositions containing propylene glycol monoacetate, a silica base and a silicate. The use of propylene glycol monoacetate as ester hardeners imparts greater compressive strength to foundry cors and the strength is built up more rapidly than with conventional ester hardeners. This is believed to be due at least in part to the total miscibility of this ester with water and to the purity of the ester product.

REFERENCES:
patent: 2662022 (1953-12-01), Dietz
patent: 3138471 (1964-06-01), Wygant
patent: 3493406 (1970-02-01), Fillet et al.
patent: 3607319 (1971-09-01), Scott
patent: 3642503 (1972-02-01), Beaney
patent: 3970462 (1976-07-01), Stillman

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