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:
May. 03, 2016
Filed:
Jan. 28, 2011
Daisuke Fukushima, Ushiku, JP;
Brian Tierney, Cambridgeshire, GB;
Natasha Conway, Cambridgeshire, GB;
Mary Mckiernan, Reading, GB;
Daisuke Fukushima, Ushiku, JP;
Brian Tierney, Cambridgeshire, GB;
Natasha Conway, Cambridgeshire, GB;
Mary McKiernan, Reading, GB;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
It is an object of the invention to provide a polymer compound that, when used in a light-emitting device, results in excellent luminance life for the obtained light-emitting device. The invention provides a polymer compound comprising a constitutional unit represented by formula (1). [In formula (1), R, R, R, Rrepresent an unsubstituted alkyl group, Rand Rrepresented an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted aryl group, an unsubstituted or substituted aryloxy group, an unsubstituted or substituted heterocyclic group, an unsubstituted or substituted silyl group, a halogen atom, an alkoxycarbonyl group, a carboxyl or a cyano group, and Rand Rrepresent an unsubstituted or substituted alkyl group, an unsubstituted or substituted alkoxy group or an unsubstituted or substituted aryl group. The letters a, b, c and d each represent an integer of 0 to 3. When multiple R, R, Rand Rgroups are present, they may be the same or different.]