Treatment process for titanium dioxide pigments, novel titanium dioxide pigment and its use in paper manufacture
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1997
Grant Date -
N/A
app pub date -
Nov 8, 1995
filing date -
Nov 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps: an aqueous suspension of titanium dioxide pigments is formed, in a first step, a layer of alumina phosphate is precipitated on the surface of the pigment, in a second step, a layer of alumina is precipitated over the first layer of alumina phosphate, the pigment is recovered from the suspension; and titanium dioxide pigment, characterized in that it comprises a titanium dioxide core coated successively with a layer of alumina phosphate, then with a layer of alumina and then with a layer of magnesium oxide.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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