Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2006-05-09
2006-05-09
Yamnitzky, Marie (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257SE51031, C526S294000, C528S086000, C528S380000, C528S397000, C528S403000, C528S417000, C528S423000
Reexamination Certificate
active
07041388
ABSTRACT:
The present invention describes poly(arylenevinylenes) comprising poly(arylphenylenevinylene) units whose phenylene unit bears a further aryl substituent in the para or meta position relative to the first aryl radical (formula (I)), as a result of which the operating life in EL elements can be increased and high EL efficiencies can be maintained.
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Becker Heinrich
Spreitzer Hubert
Stössel Philipp
Connolly Dove Lodge & Hutz
Semiconductors GmbH
Yamnitzky Marie
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