Stock material or miscellaneous articles – Composite – Of quartz or glass
Reexamination Certificate
2008-07-22
2008-07-22
Pezzuto, Helen L. (Department: 1796)
Stock material or miscellaneous articles
Composite
Of quartz or glass
C428S461000, C428S521000, C526S285000
Reexamination Certificate
active
11035577
ABSTRACT:
The present invention is generally directed to a hole transport polymer comprising a polymeric backbone having linked thereto a plurality of substituents comprising fused aromatic ring groups, with the proviso that the polymer does not contain groups selected from triarylamines and carbazole groups. It further relates to devices that are made with the polymer.
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Jaycox Gary Delmar
Periyasamy Mookkan
Yu Gang
E.I. du Pont de Nemours and Company
Pezzuto Helen L.
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