Invention Grant
US08216970B2 1,1-bis(4-hydroxyphenyl)-1-phenylethane and thermal recording material for recording the same
失效
1,1-双（4-羟基苯基）-1-苯基乙烷和用于记录的热敏记录材料
- Patent Title: 1,1-bis(4-hydroxyphenyl)-1-phenylethane and thermal recording material for recording the same
- Patent Title (中): 1,1-双（4-羟基苯基）-1-苯基乙烷和用于记录的热敏记录材料
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Application No.: US12374329Application Date: 2007-07-18
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Publication No.: US08216970B2Publication Date: 2012-07-10
- Inventor: Hiroaki Tsugawa , Soichi Uehori , Mituo Yoshifuji
- Applicant: Hiroaki Tsugawa , Soichi Uehori , Mituo Yoshifuji
- Applicant Address: JP Tokyo
- Assignee: Nipponkayaku Kabushikikaisha
- Current Assignee: Nipponkayaku Kabushikikaisha
- Current Assignee Address: JP Tokyo
- Agency: Peters Verny, LLP
- Agent David J. Aston
- Priority: JP2006-196891 20060719
- International Application: PCT/JP2007/064203 WO 20070718
- International Announcement: WO2008/010526 WO 20080124
- Main IPC: B41M5/333
- IPC: B41M5/333 ; C07C39/16 ; C09D11/00
Abstract:
This invention provides 1,1-bis(4-hydroxyphenyl)-1-phenylethane having a crystal form characterized by an X-ray diffraction pattern having one sharp and strong peak at 16.4° and three sharp peaks of intermediate intensity at each of 13°-16° and 17°-20.8° and at least three peaks of intermediate intensity at 22°-23° as a diffraction angle (2θ) in an X-ray diffractometry with Cu—K α-rays, and being capable of giving the storing stability of a colored image and a non-colored portion against heat, water or the like and the low-energy color-developing property suitable for high-speed color development.
Public/Granted literature
- US20090186760A1 1,1-BIS(4-HYDROXYPHENYL)-1-PHENYLETHANE AND THERMAL RECORDING MATERIAL FOR RECORDING THE SAME Public/Granted day:2009-07-23
Information query
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