Resin-coated sand composition and method for producing same

Details Resin-coated sand composition and method for producing same Resin-coated sand composition and method for producing same

1982-11-05

1984-06-05

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524509, 428407, C08K 502

Patent

active

044529260

ABSTRACT:
An improved resin binder for shell-molding operations having improved shake-out properties is disclosed. The resin binder utilizes a lubricant-containing phenolic resin of the novolac or resole type, or a mixture of novolac and resole types, incorporated therewith is an organic chloride. The organic chloride is characterized by having 20% by weight of the heating loss in the temperature range of 130.degree. to 550.degree. C. The organic chloride may be selected from chloride-containing polymers and cyclo-organic chlorides. Chlorinated polymeric material may be selected from polyvinyl chlorides, polyvinyldene chloride resins, chlorinated paraffins and chlorinated polyolefins.

REFERENCES:
patent: 4157993 (1979-06-01), Funabiki et al.
patent: 4290928 (1981-09-01), Funabiki et al.
patent: 4345003 (1982-08-01), Matsushima et al.

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