Epoxy-resin systems, which are resistant to aging, moulding materials, components produced therefrom and the use thereof
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United States of America Patent
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-
Feb 27, 2007
Grant Date -
Jul 31, 2003
app pub date -
May 16, 2001
filing date -
May 31, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Epoxy-resin systems resistant to aging, molded materials and components generated from them, and their utilization.An epoxy-resin system especially suitable in the application of casting-resin methods comprising an epoxide-containing A component based on a glycidyl ether or glycidyl ester and a B component containing anhydride as a hardener is proposed, where a sterically hindered amine is added to the A component as a stabilizer to prevent aging of molded materials. Light-emitting components potted with it exhibit increased aging stability, especially as with respect to light yield over time. The epoxy-resin system can also be used for encapsulants and molding compositions, and can be blended with acrylates, for all applications, particularly in the exterior.
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