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. 06, 2018
Filed:
Mar. 27, 2015
Wako Pure Chemical Industries, Ltd., Osaka-shi, Osaka, JP;
FUJIFILM WAKO PURE CHEMICAL CORPORATION, Osaka, JP;
Abstract
A coloring composition having higher heat resistance as compared with the conventional coloring composition, including a compound represented by general formula (1), and a polymer having a monomer unit derived from the compound. (wherein Rto Reach independently represent a hydrogen atom, an alkyl group; Rrepresents a hydrogen atom or a methyl group; Rand Reach independently represent a hydrogen atom or an alkyl group; Y represents a nitrogen atom or a group represented by formula (1-1): Arepresents an alkylene group having at least one group selected from —O—, —OCO—, —COO—, —NHCO—, —CONH—, —NHCONH— and an arylene group in the chain; Arepresents —NH— or —O—; Anrepresents an anion containing an aryl group having an electron-withdrawing substituent; n represents an integer of 0 to 3; Rand Rmay form a cyclic structure of a 5 to 6 membered ring together with —N—(CH)—Y— bonding thereto.)