Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2006-06-06
2006-06-06
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C568S058000, C585S400000
Reexamination Certificate
active
07057074
ABSTRACT:
Provided are bisphenylene-spirobifluorene compounds, a method for synthesizing the same, and EL material and device having the same. The bisphenylene-spirobifluorene compound is defined by the following formula:wherein R1and R2are identical or different and are independently a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, X1and X2independently contains one or more elements selected from the group consisting of C, O, N, S, Si and Ge, and m and n are integers from 1 to 4.
REFERENCES:
patent: 11-273863 (1999-10-01), None
Chu Hye Yong
Do Lee-Mi
Kim Seong Hyun
Lee Hyo-young
Lee Jeong Ik
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Saeed Kamal A.
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