Iron oxide pigments with improved color strength
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 17, 1981
Grant Date -
N/A
app pub date -
Jun 29, 1979
filing date -
Jun 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Improved transparent iron oxide pigments having increased color strength are achieved through the incorporation of fluoride with the crystals or particles of the iron oxide. These pigments may be prepared by the process which comprises reacting an aqueous solution of a water-soluble iron salt with an alkaline precipitating agent wherein a fluoride salt is added to the solution or to the reaction product.
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