Pitch impregnated articles and process for making same

Details Pitch impregnated articles and process for making same Pitch impregnated articles and process for making same

1976-01-16

1977-12-27

Smith, Ronald H.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

427442, 427443, 428468, 428489, 428490, 428491, F16L 914, B05D 118

Patent

active

040655911

ABSTRACT:
Disclosed is a pitch impregnant composition comprising coal tar pitch, oxidized, or unoxidized petroleum pitch with stearic acid, and particulated metallic pigments including copper, aluminum, steel, silver, iron, tin, nickel and zinc metals and copper-zinc alloys. The process comprises forcing the molten impregnant composition into the surface of the porous article preferably by imposing pressure on the impregnant composition while the article to be treated is immersed therein. Articles so treated exhibit a metallic surface appearance.

REFERENCES:
patent: 1574615 (1926-02-01), Fleming
patent: 2332219 (1943-10-01), Harshberger
patent: 3090698 (1963-05-01), Wilson
patent: 3928680 (1975-12-01), Gannon

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