Opacifying pigments and methods for making same

Details Opacifying pigments and methods for making same Opacifying pigments and methods for making same

1976-06-08

1977-03-29

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106 72, 209 5, C09C 136, C09C 128

Patent

active

040147096

ABSTRACT:
Described are novel inexpensive opacifying pigments having a color ranging from tan to light dun and useful, for example, in the manufacture of paints and plastics. The pigments are composed of a mixture of a major weight proportion of particles of iron-bearing titania concentrated from a sedimentary kaolin clay ore and a minor proportion of particles of thermally dehydrated kaolin clay. Also described are methods for manufacturing such pigments from the waste product of clay beneficiation, preferably "Ultraflotation" beneficiation.

REFERENCES:
patent: 3301695 (1967-01-01), Mercade
patent: 3337048 (1967-08-01), Mercade
patent: 3353668 (1967-11-01), Duke
patent: 3450257 (1969-06-01), Cundy

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