Invention Grant
- Patent Title: Photothermographic material and method for forming images
- Patent Title (中): 光热成像材料和形成图像的方法
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Application No.: US09809178Application Date: 2001-03-16
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Publication No.: US07229753B2Publication Date: 2007-06-12
- Inventor: Toyohisa Oya , Kouta Fukui , Yasuhiro Yoshioka , Kazunobu Katoh
- Applicant: Toyohisa Oya , Kouta Fukui , Yasuhiro Yoshioka , Kazunobu Katoh
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2000-076273 20000317; JP2000-283931 20000919; JP2001-002670 20010110
- Main IPC: G03C1/498
- IPC: G03C1/498

Abstract:
A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following general formula (1), and (d) a binder: Q1—NHNH—R1: Formula (1) wherein, in the general formula (1), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—R1 at a carbon atom, and R1 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group, provided that when R1 is propylcarbamoyl group, Q1 is not 2,3,5,6-tetrachloro-4-cyanophenyl group. According to the present invention, there is provided a novel photothermographic materials showing high sensitivity, high development speed and little fluctuation of performance due to heat development temperature variation.
Public/Granted literature
- US20020048732A1 Photothermographic material and method for forming images Public/Granted day:2002-04-25
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