Process for producing resin-coated sand particles for use in she

Details Process for producing resin-coated sand particles for use in she Process for producing resin-coated sand particles for use in she

1974-02-08

1976-06-08

Lusignan, Michael R.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

264 51, 264 53, 264 54, 427221, 427314, B05D 700, B05D 302

Patent

active

039624919

ABSTRACT:
A process for producing resin-coated sand particles for use in shell moles wherein a phenolformaldehyde resin in an initial stage of condensation is sprayed into a hot zone to form droplets which gravitationally descend to a cold zone and solidify. The particles are mixed with sand, heated to a temperature above the melting point of the resin and coat the sand.

REFERENCES:
patent: 2797201 (1957-06-01), Veatch et al.
patent: 2806832 (1957-09-01), Drumm et al.
patent: 2888418 (1959-05-01), Albanese et al.
patent: 2913787 (1959-11-01), Cooper
patent: 2967789 (1961-01-01), Hoyt
patent: 2991267 (1961-07-01), Bean

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