Cold-setting compositions for foundry sand cores and molds

Details Cold-setting compositions for foundry sand cores and molds Cold-setting compositions for foundry sand cores and molds

1985-11-27

1987-02-17

Jacobs, Lewis T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523145, 523147, C08K 334, B22C 1122

Patent

active

046440224

ABSTRACT:
A cold-setting foundry binder composition, which provides foundry cores and molds with improved curing speed, comprising a particulate refractory material, a resin binder, an acid curing catalyst, and an accelerator. The accelerator is selected from the group: dihydroxybenzenes, derivatives of dihydroxybenzenes, trihydroxybenzenes, and their mixtures.

REFERENCES:
patent: 2489336 (1949-11-01), Spahr et al.
patent: 3525379 (1970-08-01), Johnson et al.
patent: 3549584 (1970-12-01), Sekera
patent: 3551365 (1970-12-01), Matalon
patent: 3644274 (1972-02-01), Maurukas
patent: 3839251 (1974-10-01), Bornstein
patent: 3903041 (1975-09-01), Bornstein
patent: 4055528 (1977-10-01), Kim
patent: 4089837 (1978-05-01), Lettinger et al.
patent: 4287092 (1981-09-01), Stewart et al.
patent: 4336179 (1982-06-01), Iyer
patent: 4495316 (1985-01-01), Armbruster

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