Gellable binders

Details Gellable binders Gellable binders

1977-03-23

1978-07-25

Smith, Ronald H.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106383, 106 385R, 106 57, 106 58, 106 65, 164 12, 264 63, 427133, 427204, 427205, 427343, 427344, B28B 734

Patent

active

041026918

ABSTRACT:
The present invention provides a method of producing a shaped object by coating a pattern with a slurry of a refractory powder in a binder. The binder comprises an acidic zirconium salt and also a gellation delaying agent. The slurry is caused to gell by contacting it with ammonia vapor.

REFERENCES:
patent: 2323387 (1943-07-01), Edelstein
patent: 3232771 (1966-02-01), Pearce
patent: 3607319 (1971-09-01), Scott
patent: 3860476 (1975-01-01), Moore

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