Cold-box process for forming foundry shapes which utilizes certa

Details Cold-box process for forming foundry shapes which utilizes certa Cold-box process for forming foundry shapes which utilizes certa

1988-05-16

1989-08-01

Jacobs, Lewis T.

Metal founding

Process

Shaping a forming surface

164526, 523143, B22C 900

Patent

active

048526290

ABSTRACT:
Certain carboxylic acids are used in polyurethane-forming binder compositions to extend the bench life of such compositions. The binder compositions are particularly useful for preparing sand castings used for making foundry parts.

REFERENCES:
patent: 3409579 (1968-11-01), Robins
patent: 4590229 (1986-05-01), Gardikes

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