Aluminum metal composition flake having reduced coating
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 2, 1996
Grant Date -
N/A
app pub date -
Apr 12, 1994
filing date -
Apr 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Infrared, visible or mm. radiation is screened by an aerosol comprising flakes (0.03-0.3.times.1.5-20 microns) of aluminum metal composition, having a mass extinction coefficient of at least 4.5 m.sup.2 /g in respect of infrared radiation and at least 3.5 m.sup.2 /g in respect of visible radiation. The invention includes also the flakes per se, and formulations containing them, the flakes being additionally characterized by the facts that the amount of manufacturing process additive with which they are coated has been reduced to between 0 and 2.5 weight percent, and that they have a bulk density at least 0.5, preferably at least 1.5 g/cc. The reduction in the coating additive may be achieved by modifying the amount of additive used in the manufacturing process, or by treating the conventionally manufactured flakes with solvents to reduce the amount of coating additive to the desired level. Compressing the thus-treated flakes increases bulk density, with no significant reduction in the mass extinction coefficient.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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