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.

Date of Patent:
Aug. 13, 2013

Filed:

Feb. 24, 2009
Applicants:

Poopathy Kathirgamanathan, Middlesex, GB;

Sivagnanasundram Surendrakumar, Middlesex, GB;

Inventors:
Assignee:

Merck Patent GmbH, Darmstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 35/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A compound of the formula R(CR═CR)nAr(CR═CR)Rwherein: n is 0 or 1; Ar represents aryl or heteroaryl having 1-5 aromatic rings which may be chain or fused or a combination of chain and fused, which may be substituted with alkoxy, fluoro, fluoroalkyl or cyano and which in the case of a 5-membered ring nitrogen heteroatom may be N-substituted with aryl or substituted aryl optionally further substituted with alkoxy, fluoro, fluoroalkyl or cyano; Rand Rindependently represent aryl or nitrogen, oxygen or sulphur-containing heteroaryl having two to four fused aromatic rings one of which may be 5-membered and optionally substituted by aryl or heteroaryl having 1-5 chain or fused aromatic rings which may be further substituted with alkoxy, fluoro, fluoroalkyl or cyano; and Rand Rindependently represent hydrogen, methyl, ethyl or benzyl.


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