Process for the manufacture of resin-coated refractory particles

Details Process for the manufacture of resin-coated refractory particles Process for the manufacture of resin-coated refractory particles

1974-03-18

1976-03-16

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

164 43, 260 57C, 260DIG40, C08L 6110

Patent

active

039445143

ABSTRACT:
A process for the manufacture of resin coated sand by mixing under agitation a mass of sand upon heated and with solid ammonia-catalyzed resol having methylol index 15 - 30 and softening point higher than 80.degree.C.

REFERENCES:
patent: 2997759 (1961-08-01), Froberger
T. S. Carswell, Phenoplasts, 1947, p. 14.

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