Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-01-13
2008-03-25
Cano, Milton I. (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257SE51026, C257SE51027, C257SE51028, C257SE51029, C257SE51032, C257SE51033, C257SE51036, C257SE51046, C257SE51049, C528S010000, C528S025000, C528S040000, C528S380000, C528S397000, C528S417000, C556S406000, C556S431000, C585S026000
Reexamination Certificate
active
07348073
ABSTRACT:
A spiro-based compound containing cyclopentaphenanthrene and fluorene, which is used for an organoelectroluminescent device and an organoelectroluminescent device having the spiro-based compound. The spiro-based compound containing cyclopentaphenanthrene and fluorene can be easily manufactured to have high solubility, high color purity, and good thermal stability. The spiro-based compound containing cyclopentaphenanthrene and fluorene is suitable as a substance for an organic film, in particular, an emission layer of an organoelectroluminescent device. Further, the spiro-based compound containing cyclopentaphenanthrene and fluorene can be used as an organic dye, or an electron material such as a non-linear optical material.
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Han Ouck
Kim Jong-Seob
Kim Kyu-Sik
Paek Woon-Jung
Pu Lyong-Sun
Bushness, Esq. Robert E.
Cano Milton I.
Crouse Brett A
Samsung SDI & Co., Ltd.
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