发明授权
- 专利标题： Color-developing compositions and recording material containing same
- 专利标题（中）： 显色组合物和含有它们的记录材料
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申请号： US12990178申请日： 2009-05-01
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公开(公告)号： US08420568B2公开(公告)日： 2013-04-16
- 发明人: Satoshi Kodama , Toshiyuki Fukami , Hiroshi Fujii , Tadashi Kawakami , Toshio Aihara
- 申请人： Satoshi Kodama , Toshiyuki Fukami , Hiroshi Fujii , Tadashi Kawakami , Toshio Aihara
- 申请人地址： JP Tokyo
- 专利权人： Nippon Soda Co., Ltd.
- 当前专利权人： Nippon Soda Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenyon & Kenyon, LLP
- 优先权： JP2008-121604 20080507; JP2008-199680 20080801
- 国际申请： PCT/JP2009/001989 WO 20090501
- 国际公布： WO2009/136491 WO 20091112
- 主分类号： B41M5/333
- IPC分类号： B41M5/333
摘要：
Provided is a color-developing composition for recording materials having a superior heat resistance. The color-developing composition is a reaction composition containing a mixture of compounds represented by formula (III) obtained by reacting a dihydroxydiphenylsulfone derivative represented by formula (I) with a dihalide represented by formula (II) X—Y—X (II), wherein, in a composition where the content of a compound with n=1 in said reaction composition is from 5 to 80% by mass of the total solid content of the composition, at least 10% by mass of the compound with n=1 is a crystalline material.
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