Chromium-free conversion coating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 2002
Grant Date -
N/A
app pub date -
Feb 22, 2000
filing date -
Feb 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A corrosion-resistant coating for aluminum alloys preferably includes lithium molybdate and cerium. A conversion coating has been developed for aluminum surfaces that can substitute for the conventional chromate containing conversion coating. This new coating contains compounds such as lithium molybdate and cerium. The initial process consisted of two steps. Coated surface was tested to ASTM B117 requirement for 168 hours, showing little corrosion. Paint adhesion tests were also conducted with good results. Subsequent tests indicated that one step is adequate, but additional tests are needed.
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