Electroluminescent devices having pendant...

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

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C428S917000, C313S504000, C313S506000, C427S066000, C252S301160, C257S040000

Reexamination Certificate

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11092473

ABSTRACT:
A naphthylanthracene-based polymer comprising a repeating unit of the formulawherein:Ar is an aryl or substituted aryl of from 6 to 60 carbon atoms; or a heteroaryl or substituted heteroaryl of from 4 to 60 carbon atoms;R1, R2, and R3are the same or different, and are each individually hydrogen, or alkyl, or alkenyl, or alkynyl, or alkoxy, or amino, or thioalkyl, or carboxyl, or carbonyl, wherein the alkyl, alkenyl, alkynyl, alkoxy, amino, thioalkyl, carboxy, or carbonyl can have from 1 to 40 carbon atoms; or aryl of from 6 to 60 carbon atoms; or heteroaryl of from 4 to 60 carbon atoms; or F, or Cl, or Br; or a cyano group; or a nitro group, or a sulfonate group; andL is a direct bond between naphthylanthracene and polymer backbone or a carbon linking group having 1 to 40 carbon atoms or a non-carbon linking group.

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