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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.:

US 10961456 B1

PDFFull Text
Date of Patent:
Mar. 30, 2021

Filed:

Oct. 14, 2015

Dichroic dye compound, polarizing film, and uses thereof

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Noriyuki Hida, Osaka, JP;

Haruki Okawa, Niihama, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Panitch Schwarze Belisario & Nadel LLP

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/38 (2006.01); C07D 513/04 (2006.01); C09B 31/062 (2006.01); C09B 31/043 (2006.01); C09K 19/30 (2006.01); C09K 19/60 (2006.01); C07C 245/08 (2006.01); C09K 19/20 (2006.01); G02B 5/30 (2006.01); C09B 56/00 (2006.01); G02F 1/1335 (2006.01); H01L 51/52 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/38 (2013.01); C07C 245/08 (2013.01); C07D 513/04 (2013.01); C09B 31/043 (2013.01); C09B 31/062 (2013.01); C09B 56/00 (2013.01); C09K 19/2014 (2013.01); C09K 19/3068 (2013.01); C09K 19/3852 (2013.01); C09K 19/60 (2013.01); C09K 19/601 (2013.01); G02B 5/3016 (2013.01); G02B 5/3033 (2013.01); G02F 1/133528 (2013.01); H01L 51/5281 (2013.01); C09K 2019/0448 (2013.01); H01L 51/5262 (2013.01);
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 represented by formula (1), Rrepresents a hydrogen atom 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 group of formula (Y1), * represents a bonding site with N, or a group of formula (Y2); and in the group of 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.

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