Method to improve flowability of resin coated sand

Details Method to improve flowability of resin coated sand Method to improve flowability of resin coated sand

1989-04-27

1991-02-26

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, 524144, 524156, 524165, 524376, 428404, C08K 5524, C08K 541, C08K 506, C08L 6106

Patent

active

049962493

ABSTRACT:
A process for improving the flowability of resin coated sand which comprises the use of a fluorosurfactant with the mixture of sand and resin. Also provided is a resin binder containing a fluorosurfactant and a foundry mix comprising foundry sand, a resin binder and a fluorosurfactant. The resins used are alkaline phenolic resole resins and acid-curable resins.

REFERENCES:
patent: 3644274 (1972-02-01), Maurukas
patent: 4236569 (1980-12-01), Epstein et al.
patent: 4468359 (1984-08-01), Lemon et al.
patent: 4474904 (1984-10-01), Lemon et al.
patent: 4495316 (1985-01-01), Armbruster

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