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. 20, 2022
Filed:
Jun. 01, 2018
Applicant:
Nippon Soda Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
NIPPON SODA CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/333 (2006.01); B41M 5/155 (2006.01); C07C 275/34 (2006.01); C07C 309/73 (2006.01); B41M 5/327 (2006.01);
U.S. Cl.
CPC ...
B41M 5/3333 (2013.01); B41M 5/155 (2013.01); C07C 275/34 (2013.01); C07C 309/73 (2013.01); B41M 5/3275 (2013.01); B41M 5/3335 (2013.01); B41M 2205/04 (2013.01); B41M 2205/28 (2013.01);
Abstract
An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol-based compound good in color developing performance and the like. A compound represented by the following formula (I) is used as the color-developing agent: (wherein X represents CHor the like; Rto Reach independently represent a hydrogen atom, a halogen atom or the like; n1 and n3 each independently represent any integer of 1 to 5; two groups represented by Radjacent to each other on a benzene ring optionally bond to each other to form an optionally substituted 6-membered ring; and n2 represents any integer of 1 to 4).