C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
116/66
C04B 1/00 (1980.01)
Patent
CA 1165635
Abstract An asbestos-free mineral article useful as thermal insulation is described into which a visual identifying material is incorporated. The identifying material may be any of a variety of inorganic particulate materials such as particulate minerals, colored glass fibers or spheres, metal flakes or wires and the like. Preferred are mica flakes, present as 0.5% to 10% by weight of the article.
360311
Hutchison Ralph M.
Martin Phillip C.
Willingham Francis Y.
Johns-Manville Corporation
Macrae & Co.
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