Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-08-14
2007-08-14
Dye, Rena (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C252S301350
Reexamination Certificate
active
10206880
ABSTRACT:
Provided is a polymeric fluorescent substance comprising a copolymer which has a substituent containing a specific aromatic amine structure below in the side chain,wherein X1is a divalent hydrocarbon group; Ar2is an arylene group or the like; Ar3and Ar4independently represent an aryl group or the like. The polymeric fluorescent substance is preferably used for a light emitting layer of a polymer LED having high luminance and high light emitting efficiency.
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Bernius M., Inbasekaran, M., Woo, E., Wu, W. Wujowski, L., “Light-emitting diodes based on fluoene polymers”, Thin Solid Films, vol. 363, 2000, pp. 55-57.
Doi Shuji
Noguchi Takanobu
Tsubata Yoshiaki
Dye Rena
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
Thompson Carrie S.
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