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:
Jul. 26, 2022
Filed:
Aug. 31, 2020
Fujifilm Corporation, Tokyo, JP;
Naozumi Shiraiwa, Kanagawa, JP;
Naoyuki Morooka, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention provides a cured product obtained by curing a curable composition including a compound represented by General Formula 1, in which a birefringence Δn (587 nm) is 0.00≤Δn (587 nm)≤0.01.Pol-Sp-L-Ar-L-Sp-Pol  (General Formula 1) In the formula, Ar represents a divalent group containing a ring structure selected from the group consisting of a quinoxaline ring and a quinazoline ring; Land Leach represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Spand Speach represent a single bond or a divalent linking group; Poland Poleach represent a hydrogen atom or a polymerizable group; and the compound represented by General Formula 1 has at least one polymerizable group. The cured product of the present invention has a small Abbe number (νd) and a large partial dispersion ratio (θg, F), and is therefore useful for production of optical members.