Foundry mixes and their uses

Details Foundry mixes and their uses Foundry mixes and their uses

1994-10-21

1995-10-17

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523141, 523146, 523147, 523148, 524407, 524413, 524437, 524493, 524700, 524729, 525272, 525392, B22C 100, C08K 310, C08K 302

Patent

active

054591783

ABSTRACT:
This invention relates to foundry mixes and their uses. The foundry mixes comprise (a) a foundry aggregate, and (b) a foundry binder comprising in admixture; (1) an acetoacetate ester; (2) an .alpha., .beta. ethylenically unsaturated monomer; and (3) a liquid tertiary amine catalyst having a pK value of 12-14. The foundry mixes are used to prepare foundry shapes made from foundry mixes by a no-bake process.

REFERENCES:
patent: 4366269 (1982-12-01), Ohkawa et al.
patent: 4568728 (1986-02-01), Kopac et al.
patent: 5017649 (1991-05-01), Clemens
patent: 5288804 (1994-02-01), Kim et al.
patent: 5321118 (1994-06-01), Hubbs et al.

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