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:
Dec. 25, 2018
Filed:
Oct. 14, 2015
Sumitomo Chemical Company, Limited, Tokyo, JP;
Noriyuki Hida, Osaka, JP;
Haruki Okawa, Niihama, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A compound having a maximum absorption in a wavelength range of 350 nm to 550 nm that functions as a dichroic dye is provided. In particular, a compound represented by formula (1) is provided. In the compound of formula (1), Rrepresents an alkyl group having 1 to 20 carbon atoms or the like; Rrepresents an acyl group having 1 to 20 carbon atoms or the like; Rrepresents a hydrogen atom or the like; and Y represents a group of formula (Y1). In the formula (Y1), * represents a bonding site with N, or a group of formula (Y2). In the formula (Y2), * represents a bonding site with N; Pand Peach independently represent —S— or the like; and Qand Qeach independently represent ═N— or the like.