Preparation of flaky mica pigments coated with metal oxides, and use of these pigments
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United States of America Patent
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Aug 17, 1982
Grant Date -
N/A
app pub date -
Jul 24, 1981
filing date -
Aug 8, 1980
priority date (Note) -
Expired
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Abstract
Flaky mica pigments coated with metal oxides are prepared by oxidizing vaporizable metal carbonyls to metal oxides with oxygen at an elevated temperature in the presence of mica flakes which are kept in motion. The amount of carbonyls introduced into the reaction zone does not exceed 5% by volume of the amount of other gases introduced. The coated mica pigments are employed as pigments in surface coatings, plastics and glasses.
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