Copolymer

Details Copolymer Copolymer

2005-02-22

2005-02-22

Garrett, Dawn (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S040000, C528S394000, C528S401000, C528S422000

Reexamination Certificate

active

06858324

ABSTRACT:
A copolymer for use in an electroluminescent device comprising a first repeat unit, a second repeat unit comprising a group having a general formula (I) and optionally, a third repeat unit comprising a group having a general formula (II) which may be substituted or unsubstituted where T is a trifluoromethyl substituted benzene; Ar, Ar′ and Ar″ each independently comprise a substituted or unsubstituted aryl or heteroaryl group and m is 1 or 2

REFERENCES:
patent: 5900327 (1999-05-01), Yu et al.
patent: 5968675 (1999-10-01), Enokida et al.
patent: 11087066 (1999-03-01), None
patent: 99 32537 (1999-07-01), None
patent: 99 54385 (1999-10-01), None
“Materials and Fabrication of Organic Bilayer EL Device Preparation of Aromatic Tertiary Amines as Hole Transport Agent and Their Current-Voltage Characteristics”, Abe et al., Nippon Kagaku Kaishi, (1997), (2), p. 134-138.*
International Search Report, PCT/GB01/01037, ISA/EPO, Jun. 25, 2001.

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