Composite zinc oxide coating on an inert pigment core

Details Composite zinc oxide coating on an inert pigment core Composite zinc oxide coating on an inert pigment core

1977-12-12

1980-06-10

Herbert, Jr, Thomas J.

Stock material or miscellaneous articles

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

Particulate matter

106288B, 106296, 106308B, 427215, 427217, 428539, B32B 904

Patent

active

042073774

ABSTRACT:
This invention relates to a novel composite pigment and method for its manufacture which comprises a finely-divided inert pigment as a core which has deposited on its surface a non-photoconductive grade of zinc oxide, the weight ratio of zinc oxide ranging from about 30% to about 80% of the total weight of the composite pigment and the composite pigment characterized by a specific surface in excess of about 10 square meters/gram. In rubber compounding, the composite pigment reduces the cost of the zinc essential to produce quality products and the composite pigment because it is itself photoconductive is of utility in photoconductive end uses.

REFERENCES:
patent: 3004857 (1961-10-01), Merson et al.
patent: 3028250 (1962-04-01), Dunn et al.
patent: 3072495 (1963-01-01), Petrot

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