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. 10, 2024
Filed:
Oct. 19, 2022
Fujifilm Corporation, Tokyo, JP;
Kazufumi Omura, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An object of the present invention is to provide a lactone compound having excellent water stability. Provided is a lactone compound represented by Formula (I). In Formula (I), Rand Reach independently represent a substituent which does not have a dissociative proton and has a Hammett's substituent constant σp value of −0.90 or more and −0.03 or less. Rrepresents a substituent which does not have a dissociative proton and has a Hammett's substituent constant σp value of −0.90 or more and −0.03 or less, or a hydrogen atom. Y represents a substituent and n represents an integer of 1 to 4. In a case where n is an integer of 2 to 4, a plurality of Y's may be the same substituent or substituents different from each other.