Method for preparing binder for refractory powders

Details Method for preparing binder for refractory powders Method for preparing binder for refractory powders

1981-06-03

1983-04-05

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 383, 10628716, 10628734, B28B 734

Patent

active

043789960

ABSTRACT:
A method for preparing a hybrid binding liquid comprises coloidal silica derived from the hydrolysis of an alkyl silicate and from an acidic organo-aqueous silica sol. More than 50% by weight of silica is derived from the sol by the expedient of replacing part of the water in a commercially available silica sol either by a polyhydric alcohol or by silica.

REFERENCES:
patent: 2842445 (1958-07-01), Emblem et al.
patent: 3961968 (1976-06-01), Wales
patent: 4289803 (1981-09-01), Wales et al.

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