Patent ID: 7763316

Claim:
A process for producing a free flowing resin coated industrial aggregate comprising (a) adding a solid polymer curing resin to a mass of aggregate particles carrying a molten novolac resin coating in an amount sufficient to completely cure the novalac resin, (b) mixing the mixture so formed at a temperature high enough so that the polymer curing resin coats the individual aggregate particles, (c) quenching the mixture before substantial crosslinking of the novalac resin occurs, and (d) drying the quenched mixture to produce the free-flowing resin coated industrial aggregate product, wherein the solid polymer curing resin when added in step (a) is in the form of granular particles having a particles size of about ¾ inch to 40 mesh, and further wherein the free flowing resin coated industrial aggregate product is made without addition of liquid hexamethylenetetramine.