The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2006
Filed:
Sep. 25, 2001
Richard O'dell, Taufkirchen, DE;
Carl Robert Towns, Stansted, GB;
Mary Joyce Mckiernan, Cambridgeshire, GB;
Richard O'Dell, Taufkirchen, DE;
Carl Robert Towns, Stansted, GB;
Mary Joyce McKiernan, Cambridgeshire, GB;
Cambridge Display Technology Limited, Cambridge, GB;
Abstract
A polymer including a region having a conjugated backbone capable of transporting negative charge carriers, which region includes a plurality of repeat units each including a core group which includes an [Ar'] group substituted with at least one pendant group X and the [Ar′] groups form at least a part of the backbone, wherein each Ar′ includes an aromatic or heteroaromatic group and each X includes NArin which each Ar is the same or different and independently includes a substituted or unsubstituted aromatic or heteroaromatic group and N is conjugated with the backbone.