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1. 发明授权

US4156682A Fluoran compounds and recording sheet containing them 失效
标题翻译：含氟化合物和含有它们的记录片材
公开(公告)号：US4156682A
公开(公告)日：1979-05-29
申请号：US734668
申请日：1976-10-21
申请人： Seiji Hotta , Yukiaki Ito
发明人： Seiji Hotta , Yukiaki Ito
IPC分类号： B41M5/327 , C09B11/24 , C07D493/10
CPC分类号： C09B11/24 , B41M5/3275
摘要： A fluoran compound represented by the formula, ##STR1## WHEREIN R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, substituted or unsubstituted lower alkyl, lower alkenyl, or lower alkynyl, ##STR2## GROUP (WHEREIN X is hydrogen, halogen, lower alkyl, lower alkoxy, di-lower alkylamino or --COOR.sub.a group in which R.sub.a is lower alkyl, and l is an integer of 1 to 4), or R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4, taken together, may form a heterocyclic ring; Y is the same atom or group as X but independent of X; D is a benzene or naphthalene nucleus; Z is hydrogen or halogen; and m and n are each an integer of 1 to 4, is useful as a coloring material for record material systems such as pressure-sensitive copying paper or heat-sensitive copying paper, wherein colored images are formed by an electron donor-accepter color-forming reaction between a coloring material and an acidic material.
摘要翻译：由下式表示的荧蒽化合物，其中R 1，R 2，R 3和R 4各自为氢，取代或未取代的低级烷基，低级烯基或低级炔基， GROUP 其中X为氢，卤素，低级烷基，低级烷氧基，二低级烷基氨基或-COOR a基团，其中R a为低级烷基，l为1至4的整数），或R 1和R 2或R 3和R 4为一起可形成杂环; Y是与X相同的原子或基团，但与X无关; D是苯或萘核; Z是氢或卤素; m和n各自为1〜4的整数，可用作压敏复印纸或热敏复印纸等记录材料系统的着色材料，其中彩色图像由电子供体 - 受体颜色 - 在着色材料和酸性材料之间形成反应。

2. 发明授权

US4024157A Fluoran compounds and recording sheet containing them 失效
标题翻译：含氟化合物和含有它们的记录片材
公开(公告)号：US4024157A
公开(公告)日：1977-05-17
申请号：US510916
申请日：1974-10-01
申请人： Seiji Hotta , Yukiaki Ito
发明人： Seiji Hotta , Yukiaki Ito
IPC分类号： B41M5/145 , B41M5/327 , C07D493/10 , C09B11/24 , C09B11/28
CPC分类号： C09B11/24 , B41M5/1455 , B41M5/3275 , C07D493/10
摘要： A fluoran compound represented by the formula, ##STR1## WHEREIN R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each hydrogen, substituted or unsubstituted lower alkyl, lower alkenyl, or lower alkynyl, ##STR2## GROUP (WHEREIN X is hydrogen, halogen, lower alkyl, lower alkoxy, di-lower alkylamino or --COOR.sub.a group in which R.sub.a is lower alkyl, and l is an intger of 1 to 4), or R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4, taken together, may form a heterocyclic ring; Y is the same atom or group as X but independent of X; D is a benzene or naphthalene nucleus; Z is hydrogen or halogen; and m and n are each an integer of 1 to 4, is useful as a coloring material for record material systems such as pressure-sensitive copying paper or heat-sensitive copying paper, wherein colored images are formed by an electron donor-accepter and color-forming reaction between a coloring material and an acidic material.
摘要翻译：由下式表示的荧蒽化合物，其中R1，R2，R3和R4各自为氢，取代或未取代的低级烷基，低级链烯基或低级炔基， >（其中X是氢，卤素，低级烷基，低级烷氧基，二低级烷基氨基或-COOR a基团，其中R a是低级烷基，l是1至4的整数），或R 1和R 2，或R 3和 R4一起可以形成杂环; Y是与X相同的原子或基团，但与X无关; D是苯或萘核; Z是氢或卤素; m和n各自为1〜4的整数，可用作用于诸如压敏复印纸或热敏复印纸的记录材料系统的着色材料，其中彩色图像由电子供体 - 受体和颜色形成着色材料和酸性材料之间形成反应。

3. 发明授权

US3947471A Benz (c) fluoran compounds and recording sheet containing them 失效
标题翻译： Benz（c）荧光化合物和含有它们的记录片材
公开(公告)号：US3947471A
公开(公告)日：1976-03-30
申请号：US471698
申请日：1974-05-20
申请人： Takashi Akamatsu , Koichi Koga , Mitsuru Kondo , Makoto Miyake , Hiroshi Twasaki , Masatoshi Matsuo , Seiji Hotta , Isao Yuji , Yukiaki Ito
发明人： Takashi Akamatsu , Koichi Koga , Mitsuru Kondo , Makoto Miyake , Hiroshi Twasaki , Masatoshi Matsuo , Seiji Hotta , Isao Yuji , Yukiaki Ito
IPC分类号： B41M5/145 , B41M5/327 , C07D493/10 , C07D311/84
CPC分类号： C07D493/10 , B41M5/1455 , B41M5/3275
摘要： Novel benz[c]fluoran compounds such as 2-phenylamino-8-diethylamino-benz[c]fluoran, 2-(2',4',6'-trimethylphenylamino)-8-diethylamino-benz[c]fluoran and N-[8-diethylaminobenz[c]fluoran-2-yl]-N-[6-diethylaminofluoran-2-yl]amine, which are useful as a coloring material for record material systems such as pressure-sensitive copying paper or heat-sensitive copying paper, wherein colored images formed by an electron-donoracceptor color-forming reaction between coloring material and acidic material.
摘要翻译：新的苯并[c]荧烷化合物如2-苯基氨基-8-二乙基氨基 - 苯并[c]荧烷，2-（2'，4'，6'-三甲基苯基氨基）-8-二乙基氨基 - 苯并[c] [8-二乙基氨基苯并[c]荧烷-2-基] -N- [6-二乙基氨基荧烷-2-基]氨基，它们可用作记录材料系统的着色材料，例如压敏复印纸或热敏复印纸，其中通过着色材料和酸性材料之间的电子 - 受体形成反应形成的彩色图像。

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