Casting material for producing casting molds for casting...

Details Casting material for producing casting molds for casting... Casting material for producing casting molds for casting...

2007-02-06

2007-02-06

Sanders, Kriellion (Department: 1714)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S430000, C524S433000, C106S038900, C164S035000, C164S529000

Reexamination Certificate

active

10496359

ABSTRACT:
The casting-mold material designed to manufacture casting molds used in casting high melting-point substances. The casting mold formed from a powder component containing magnesium oxide and aluminum oxide and a liquid component. The powder component additionally contains a calcium aluminate and an alkali fluoride or an earth alkali fluoride and the liquid component contains a polyelectrolyte and a basic component, the latter determining the liquid component pH value between 10 and 14. A fluid slip is prepared by mixing the powder and liquid components and is dried, hardened and sintered to produce a hollow mold.

REFERENCES:
patent: 4097935 (1978-07-01), Jarcho
patent: 4207306 (1980-06-01), Jarcho

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