Green nacreous pigments having calcined Cr oxide and phosphate layer, their preparation, and use
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 3, 1984
Grant Date -
N/A
app pub date -
Sep 22, 1982
filing date -
Sep 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Nacreous pigments comprise a mica platelet coated with a first layer of a metal oxide and a second layer of chromium(III) oxide, wherein the chromium oxide layer further contains at least 0.05 mol % of phosphate ion based on the number of moles of chromium ion therein. Because of the phosphate ion, the chromium layer is continuous and essentially crack-free even at larger thicknesses, and contributes to the interference effect. The pigments are particularly useful as lustrous agents in cosmetics.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully