Polymer
AssigneesSumitomo Chemical Company, Limited, Cambridge Display Technology Limited
InventorsSophie Barbara Heidenhain, Mathew Roberts, Micheal Cass, Natasha M.J. Conway, Fredrik Jakobsson
Life of this patent
Estimating the term…
Abstract
A polymer comprising a repeat unit of formula (I): (I) wherein Ar6 and Ar7 each independently represent a substituted or unsubstituted aryl or heteroaryl group; Sp represents a spacer group comprising a chain of at least 2 aliphatic carbon atoms spacing Ar6 from Ar7; m is at least 1; and if m is greater than 1 then —(Ar7)m forms a linear or branched chain of Ar7 groups in which Ar7 in each occurrence may be the same or different.
Claims28
A polymer comprising a repeat unit of formula (I):
- wherein Ar6 and Ar7 each independently represent a substituted or unsubstituted aryl or heteroaryl group;
- Sp represents a spacer group comprising a chain of at least 2 aliphatic carbon atoms spacing Ar6 from Ar7;
- m is at least 1;
- and if m is greater than 1 then —(Ar7)m forms a linear or branched chain of Ar7 groups in which Ar7 in each occurrence may be the same or different.
(canceled)
(canceled)
(canceled)
A polymer according to 1 wherein m is 1 and Ar7 is a substituted or unsubstituted fluorene.
(canceled)
(canceled)
(canceled)
(canceled)
An organic electronic device comprising a polymer according to claim
(canceled)
Dependencies are inferred from the claim text.