C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
6/194, 6/23, 167
C09C 1/00 (2006.01) A61K 8/11 (2006.01) A61Q 1/02 (2006.01) A61Q 1/10 (2006.01) C08K 9/02 (2006.01) C08K 9/04 (2006.01) C09C 1/62 (2006.01) C09D 5/36 (2006.01) C09D 11/00 (2006.01) C09D 11/02 (2006.01)
Patent
CA 1336638
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.
589332
Ishidoya Masahiro
Nakamichi Toshihiko
Souma Thoru
Takai Naoe
Gowling Lafleur Henderson Llp
Nippon Oil & Fats Co. Ltd.
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