Foundry core composition of aggregate and a binder therefor

Details Foundry core composition of aggregate and a binder therefor Foundry core composition of aggregate and a binder therefor

1976-10-26

1977-09-27

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 22TN, 260 328R, 260 328EP, C08L 6110

Patent

active

040510921

ABSTRACT:
A new foundry core composition comprises foundry aggregate, a resin base such as an aqueous resole resin, a polyisocyanate, and a selected solvent therefor. The solvent is an acetal or ketal such as butyl acetal. The compositions are suitable for use in cold box, no-bake, and rapid no-bake processes.

REFERENCES:
patent: 3268467 (1966-08-01), Rye et al.
patent: 3409579 (1968-11-01), Robins
patent: 3428110 (1969-02-01), Walker et al.
patent: 3702316 (1972-11-01), Robins et al.
patent: 3904559 (1975-09-01), Furness
patent: 3905934 (1975-09-01), Gardikes

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