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:
Mar. 03, 2020
Filed:
Nov. 21, 2017
Applicants:
Sumimoto Chemical Company Limited, Tokyo, JP;
Cambridge Display Technology Limited, Cambridgeshire, GB;
Inventors:
Ruth Pegington, Godmanchester, GB;
Sophie Barbara Heidenhain, Lower Cambourne, GB;
Mary J. McKiernan, Pangbourne, GB;
Assignees:
Sumitomo Chemical Company Limited, Tokyo, JP;
Cambridge Display Technology Limited, Godmanchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 211/61 (2006.01); C08G 61/12 (2006.01); H01L 51/00 (2006.01); C09K 11/06 (2006.01); C08G 73/02 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0043 (2013.01); C07C 211/61 (2013.01); C08G 61/12 (2013.01); C08G 73/026 (2013.01); C09K 11/06 (2013.01); H01L 51/0039 (2013.01); H01L 51/5056 (2013.01); H01L 51/5203 (2013.01); C07C 2603/18 (2017.05); C08G 2261/135 (2013.01); C08G 2261/148 (2013.01); C08G 2261/1412 (2013.01); C08G 2261/314 (2013.01); C08G 2261/3142 (2013.01); C08G 2261/3162 (2013.01); C08G 2261/3245 (2013.01); C08G 2261/411 (2013.01); C08G 2261/512 (2013.01); C08G 2261/76 (2013.01); C08G 2261/95 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1416 (2013.01); C09K 2211/1433 (2013.01); C09K 2211/185 (2013.01);
Abstract
A polymer comprising one or more optionally substituted repeat units of formula (I): wherein each Arindependently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Arindependently represents a substituted or unsubstituted aromatic or heteroaromatic group; n and m in each occurrence is at least 1; and Rand Rare substituents wherein Rand Rare different.