Hardening catalysts and alkali metal silicate compositions conta

Details Hardening catalysts and alkali metal silicate compositions conta Hardening catalysts and alkali metal silicate compositions conta

1978-04-28

1980-07-22

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 383, 106 74, 106 84, B28B 734

Patent

active

042137853

ABSTRACT:
Catalysts for hardening aqueous alkali metal silicate solutions comprising mixtures of alkylene carbonate and methyl esters of organic acids are disclosed. The hardening catalysts are primarily useful in the production of high quality foundry molds and cores based on alkali metal silicate binders.

REFERENCES:
patent: 2662022 (1953-12-01), Dietz
patent: 3149985 (1964-09-01), Gandon
patent: 3306756 (1967-02-01), Miller
patent: 3317046 (1967-06-01), Barlow et al.
patent: 3493406 (1970-02-01), Fillet et al.
patent: 4056937 (1977-11-01), Suzuki

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