Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1991-06-10
1992-02-25
Zimmerman, John
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106404, C09C 162
Patent
active
050910108
ABSTRACT:
A titanium oxide-coated chromatic-color metal flake pigment is prepared by hydrolyzing an organic titanate ester compound, e.g., tetraisopropoxy titanium, in the presence of the base metal flakes suspended in an organic medium having a pH of 4 to 8. The pigment exhibits iridescent color tones of great aesthetic value delicately varying depending on the thickness of the titanium oxide coating layer. The pigment has high chemical stability, for example, against acids, by virtue of the very uniform and dense coating layer of titanium oxide so that the inventive pigment is useful as a coloring agent in a water-borne composition. Application fields of the inventive pigment include colored coating compositions, ink compositions, cosmetic preparations, molding compounds of plastic resins and so on.
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Ishidoya Masahiro
Nakamichi Toshihiko
Souma Thoru
Takai Naoe
Nippon Oil and Fats Company Limited
Zimmerman John
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