Pigmented aluminum oxide powder and method of producing the same

Details Pigmented aluminum oxide powder and method of producing the same Pigmented aluminum oxide powder and method of producing the same

1983-06-30

1985-02-12

Cockeram, Herbert S.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106288B, 106308B, 106309, C04B 3102, C08K 304, C09C 144

Patent

active

044989318

ABSTRACT:
Pigmented aluminum oxide powders are provided herein obtained by adding at least 0.5 wt. % of carbon black to aluminum oxide powder, said carbon black having a mean particle size of less than about 100 mn and a specific surface area more than 30 m.sup.2 /g, and mixing the aluminum oxide powder-carbon black composition under an impact value of more than 1 G, preferably by use of a vibration mill. The present invention also provides a method of producing said pigmented aluminum oxide powder.

REFERENCES:
patent: 3488204 (1970-01-01), Jordan et al.
patent: 4076551 (1978-02-01), Bernhard et al.
patent: 4108679 (1978-08-01), Szczepanik et al.

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