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:
May. 08, 2001
Filed:
Jul. 08, 1999
Tetsunori Matsushita, Shizuoka-ken, JP;
Naoto Yanagihara, Shizuoka-ken, JP;
Masanobu Takashima, Shizuoka-ken, JP;
Mitsuyuki Tsurumi, Shizuoka-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A pyrrolo[1,2-a]pyrimidine compound providing an excellent color-forming property is provided. Further, a novel cyan color-forming type diazo heat-sensitive recording material having excellent shelf life, image light-resistance and image fixing property is provided. The pyrrolo[1,2-a]pyrimidine compound is represented by following general formula (1). The heat-sensitive recording material comprises a substrate, and on the substrate, a heat-sensitive recording layer containing a diazonium salt compound and a coupler. The coupler contains at least one of pyrrolo[1,2-a]pyrimidine compounds represented by following general formula (1). In the formula, R,represents an aryl group or the like, R,represents an alkoxycarbonyl group or the like, R,and R,represent an acyl group or the like, and R,represents a hydrogen atom or the like.