Hot-box foundry mix

Details Hot-box foundry mix Hot-box foundry mix

1993-04-13

1995-10-10

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523145, 524424, 524425, 524433, 524456, B22C 118, C08K 326

Patent

active

054571421

ABSTRACT:
This invention relates to a hot-box foundry mix. The hot-box foundry mix comprises (a) an aggregate (b) a thermosetting resin; (c) a latent acid curing catalyst; and (d) an effective benchlife extending amount of a compound selected from the group consisting of an alkaline earth metal carbonate, an alkaline earth metal oxide, and mixtures thereof. The hot-box foundry mixes are used to prepare foundry molds and cores. The foundry molds and cores are used to cast metals.

REFERENCES:
patent: 3306864 (1967-06-01), Lang
patent: 3472429 (1969-10-01), Hayford
patent: 4600733 (1986-07-01), Ohashi
patent: 4766949 (1988-08-01), Jhaveri
patent: 4884620 (1989-12-01), Jhaveri

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