Binders for foundry mixes comprising polyisocyanate and styrene-

Details Binders for foundry mixes comprising polyisocyanate and styrene- Binders for foundry mixes comprising polyisocyanate and styrene-

1978-06-21

1979-03-13

Person, Sandra M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

164 43, 260 332R, 260 37N, 260859R, 528 75, C08K 506, C08K 510

Patent

active

041442156

ABSTRACT:
A foundry core composition comprising a foundry aggregate, a resin base such as styrene-allyl alcohol copolymer or alkylene oxide derivative thereof, a polyisocyanate, and a catalyst therefor; the compositions being suitable for use in cold box, no-bake, and rapid no-bake processes.

REFERENCES:
patent: 3403721 (1968-10-01), Robins et al.
patent: 3428110 (1969-02-01), Walker et al.
patent: 3925320 (1975-12-01), Morgan
patent: 3969569 (1976-07-01), Vasta

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