Particles covered with a cured infusible thermoset film and proc

Details Particles covered with a cured infusible thermoset film and proc Particles covered with a cured infusible thermoset film and proc

1982-02-16

1984-03-27

Lusignan, Michael R.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

427221, 427314, 427318, 4273855, 428407, 428446, 428451, 428454, B32B 2742

Patent

active

044394896

ABSTRACT:
An improved process is provided for preparing a product containing particles individually coated with a cured, thermoset phenolic resin. The process comprises mixing particulate matter with an uncured resin and a lubricant at a temperature which causes curing of the resin. The product obtained by this process shows superior properties as a propping agent for treating subterranean formations.

REFERENCES:
patent: 3026938 (1962-03-01), Huitt et al.
patent: 3929191 (1975-12-01), Graham et al.
patent: 3962491 (1976-06-01), Sato et al.
patent: 4175159 (1979-11-01), Raleigh
patent: 4202780 (1980-05-01), Brendle
patent: 4290928 (1981-09-01), Fungbiki et al.
patent: 4310045 (1982-01-01), Smillie
patent: 4333743 (1982-06-01), Nojima
Condensed Chemical Dictionary, 6th Ed., Rheinhold Pub., N.Y., pp. 870, 871 and 1019.

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