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US 2014/0175415 A1Published application
Polymer and organic electronic device
AssigneesSumitomo Chemical Company, Limited, Cambridge Display Technology Limited
InventorsAnnette Steudel, Florence Bourcet, Kiran Kamtekar
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Abstract
A composition comprising a polymer and a phosphorescent material wherein the polymer comprises repeat units of formula (I): wherein A is a heteroaryl group containing a nitrogen atom, and A may be unusubstituted or substituted with one or more substituents; R1 in each occurrence is independently a substituent; and n is 0, 1, 2, 3 or 4.
Claims20
A composition comprising a polymer and a phosphorescent material wherein the polymer comprises repeat units of formula (I):
- wherein A is a heteroaryl group containing a nitrogen atom, and A may be unusubstituted or substituted with one or more substituents;
- R1 in each occurrence is independently a substituent;
- and
- n is 0, 1, 2, 3 or 4.
1 more element
A polymer comprising a repeat unit of formula (III):
- wherein:
- R2 is H or a substituent;
- R1 in each occurrence is independently a substituent;
- and
- n is 0, 1, 2, 3 or 4.
2 more elements
Dependencies are inferred from the claim text.