Molding material and mold

Details Molding material and mold Molding material and mold

1987-03-23

1988-08-30

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523144, 523146, C08K 334

Patent

active

047678011

ABSTRACT:
Molding material composed of casting sand coated with a thermosetting resin and hydrous magnesium silicate clay mineral which may be impregnated with an acid and/or coated with a thermosetting resin, and a shell mold produced from the molding material. This material and mold minimize generation of smoke and irritating gases at the time of mold making and casting.

REFERENCES:
patent: 4048134 (1977-09-01), Courtenay et al.
patent: 4216133 (1980-08-01), Johnson et al.

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