Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-02-14
2006-02-14
Dye, Rena (Department: 1774)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C252S301160, C257S040000
Reexamination Certificate
active
06998487
ABSTRACT:
Disclosed are double-spiro organic compounds and an organic electroluminescence (EL) device using the same. The double-spiro organic compounds are configured to have at least three planar and substantially linear moieties, such that one planar moiety is located between two neighboring planar moieties and that the intervening planar moiety shares an atom with each of the two neighboring planar moieties. The double-spiro compounds generally have high melting point above about 300 degree C. and low crystallinity, which provide thermal stability to the organic EL devices. These organic compounds have good sublimability. They also have light-emitting, hole-injecting, hole-transporting, electron injection, electron-transporting properties and characteristics, which are favorable in the organic EL devices.
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Communication from European Patent Office dated Feb. 16, 2005.
Bae Jae soon
Im Sung Gap
Kim Jieun
Kim Kong Kyeom
Lee Jae Chol
Dye Rena
LG Chem Ltd.
McKenna Long & Aldridge LLP
Thompson Camie S.
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