Stock material or miscellaneous articles – Composite – Of epoxy ether
Reexamination Certificate
2003-08-04
2008-11-11
Zimmer, Marc S (Department: 1796)
Stock material or miscellaneous articles
Composite
Of epoxy ether
C428S416000, C523S443000, C523S457000
Reexamination Certificate
active
07449241
ABSTRACT:
An organic coating composition is described, which can be used to enrich the surface region of a metal-based substrate with aluminum. The composition comprises an aluminum-based powder and at least one organic resin, e.g., alkyds, epoxies, or silicone materials. At least some of the aluminum-based powder is in the form of substantially spherical powder particles. The coating composition is substantially free of hexavalent chromium. It can be applied to the substrate by a variety of techniques, such as spraying. It is then heat-treated, to cause diffusion of aluminum into the surface region of the substrate, e.g., a turbine engine component. The composition exhibits good thermal and chemical stability for extended periods of time. Related articles are also described.
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Conversion table for mesh number to particle size as provided by the sigma aldrich internet site.
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Carr David
DiDomizio Richard
Gigliotti, Jr. Michael Francis X.
Kogan Anatoli
Kool Lawrence Bernard
Coppa Francis T.
General Electric Company
Zimmer Marc S
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