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:
Nov. 08, 2022
Filed:
Jul. 23, 2018
Zeon Corporation, Tokyo, JP;
Shunpei Nakajima, Tokyo, JP;
Kei Sakamoto, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
Disclosed is a polymerizable liquid crystal material wherein an amount of a salt represented by the following formula (I) is less than 0.01 parts by mass per 100 parts by mass of a polymerizable liquid crystal compound, and an amount of a nitrogen-containing compound represented by the following formula (II) is 0.01 parts by mass or less per 100 parts by mass of the polymerizable liquid crystal compound. Rto Reach independently represent a hydrogen atom or a C1-C7 alkyl group, Rand Rrepresents a hydrogen atom, and X represents F, Br, Cl, I, HSO, 1/2(HPO), HPO, R—C(═O)—O, 1/2(O—(C═O)—R'—(C═O)—O) or R—SO, where R represents a hydrogen atom or a monovalent hydrocarbon group, and R′ represents a single bond or a divalent hydrocarbon group.