The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2007
Filed:
May. 16, 2001
Georg Bogner, Lappersdorf, DE;
Herbert Brunner, Regensburg, DE;
Klaus Hoehn, Taufkirchen, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
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.