Invention Grant
- Patent Title: Heat-sensitive recording material and production method thereof
- Patent Title (中): 热敏记录材料及其制造方法
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Application No.: US13021090Application Date: 2011-02-04
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Publication No.: US08147905B2Publication Date: 2012-04-03
- Inventor: Yoshiaki Matsunaga , Shinji Takano , Kazuyuki Uetake
- Applicant: Yoshiaki Matsunaga , Shinji Takano , Kazuyuki Uetake
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2006-251298 20060915
- Main IPC: B41M3/12
- IPC: B41M3/12 ; B41M5/42

Abstract:
To provide a heat-sensitive recording material, including: a substrate; a heat-sensitive color developing layer on the substrate, the heat-sensitive color developing layer containing at least a leuco dye and a developer; and a protective layer on the heat-sensitive color developing layer, the protective layer containing at least a binder resin, wherein the binder resin in the protective layer contains diacetone-modified polyvinyl alcohol resin, the degree of polymerization of the binder resin in the protective layer is 1,000 to 1,800 and the degree of saponification of the binder resin is 90% or greater and less than 98%.
Public/Granted literature
- US20110135830A1 HEAT-SENSITIVE RECORDING MATERIAL AND PRODUCTION METHOD THEREOF Public/Granted day:2011-06-09
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