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1. 发明申请

US20050171384A1 Process for producing dihydroxydiphenyl sulfone 失效
标题翻译：生产二羟基二苯砜的方法
公开(公告)号：US20050171384A1
公开(公告)日：2005-08-04
申请号：US10511823
申请日：2003-04-24
申请人： Fumio Oi , Norio Yanase , Takayuki Kitahara , Nobuyuki Nate
发明人： Fumio Oi , Norio Yanase , Takayuki Kitahara , Nobuyuki Nate
IPC分类号： C07C315/06 , C07C317/22
CPC分类号： C07C315/06 , C07C317/22
摘要： The present invention provides a process for producing dihydroxydiphenylsulfone wherein trihydroxytriphenylsulfone and coloring impurities are effectively removed without altering the isomeric composition of dihydroxydiphenylsulfone. In particular, the present invention provides a process for producing dihydroxydiphenylsulfone comprising the steps of dissolveing or suspending in an aqueous solvent crude dihydroxydiphenylsulfone containing trihydroxytriphenylsulfone, adjusting the pH to 5-7, optionally cooling, and separating the crystalline dihydroxydiphenylsulfone thus precipitated.
摘要翻译：本发明提供了二羟基二苯砜的制备方法，其中三羟基三苯基砜和着色杂质被有效地除去而不改变二羟基二苯砜的异构体组成。特别地，本发明提供了二羟基二苯砜的制造方法，其特征在于，将含有三羟基三苯基砜的粗二羟基二苯砜水溶液溶解或悬浮，调节pH至5-7，任选地冷却，分离析出的结晶二羟基二苯砜。

2. 发明授权

US06974886B2 Process for producing dihydroxydiphenylsulfone 失效
标题翻译：制备二羟基二苯砜的方法
公开(公告)号：US06974886B2
公开(公告)日：2005-12-13
申请号：US10511823
申请日：2003-04-24
申请人： Fumio Oi , Norio Yanase , Takayuki Kitahara , Nobuyuki Nate
发明人： Fumio Oi , Norio Yanase , Takayuki Kitahara , Nobuyuki Nate
IPC分类号： C07C315/06 , C07C317/22 , C07C317/33
CPC分类号： C07C315/06 , C07C317/22
摘要： The present invention provides a process for producing dihydroxydiphenylsulfone wherein trihydroxytriphenylsulfone and coloring impurities are effectively removed without altering the isomeric composition of dihydroxydiphenylsulfone. In particular, the present invention provides a process for producing dihydroxydiphenylsulfone comprising the steps of dissolveing or suspending in an aqueous solvent crude dihydroxydiphenylsulfone containing trihydroxytriphenylsulfone, adjusting the pH to 5–7, optionally cooling, and separating the crystalline dihydroxydiphenylsulfone thus precipitated.
摘要翻译：本发明提供了二羟基二苯砜的制备方法，其中三羟基三苯基砜和着色杂质被有效地除去而不改变二羟基二苯砜的异构体组成。特别地，本发明提供了二羟基二苯砜的制造方法，其特征在于，将含有三羟基三苯基砜的粗二羟基二苯砜水溶液溶解或悬浮，调节pH至5-7，任选地冷却，分离析出的结晶二羟基二苯砜。

3. 发明申请

US20050272956A1 Process for producing high-purity 4,4'-dihydroxydiphenyl sulfone 失效
标题翻译：生产高纯度4,4'-二羟基二苯砜的方法
公开(公告)号：US20050272956A1
公开(公告)日：2005-12-08
申请号：US10529074
申请日：2003-09-22
申请人： Eiji Ogata , Fumio Oi , Norio Yanase , Nobuyuki Nate
发明人： Eiji Ogata , Fumio Oi , Norio Yanase , Nobuyuki Nate
IPC分类号： C07C315/00 , C07C315/06 , C07C317/22
CPC分类号： C07C315/00 , C07C315/06 , C07C317/22
摘要： The present invention provides a process for producing 4,4′-dihydroxydiphenylsulfone of very high purity. In particular, the present invention provides a process for producing 4,4′-dihydroxydiphenylsulfone of high purity comprising the steps of subjecting phenol in combination with a sulfonating agent or phenolsulfonic acid to a dehydration reaction in the presence of an aromatic nonpolar solvent while suspending the resulting dihydroxydiphenylsulfone therein, mixing the reaction suspension with a polar solvent to at least partially dissolve the dihydroxydiphenylsulfone, and precipitating 4,4′-dihydroxydiphenylsulfone.
摘要翻译：本发明提供了一种制备非常高纯度的4,4'-二羟基二苯砜的方法。特别地，本发明提供了一种制备高纯度的4,4'-二羟基二苯基砜的方法，包括以下步骤：在芳族非极性溶剂的存在下使苯酚与磺化剂或苯酚磺酸组合进行脱水反应，同时使将反应悬浮液与极性溶剂混合至少部分溶解二羟基二苯基砜，并沉淀出4,4'-二羟基二苯基砜。

4. 发明授权

US5596128A Sulfonating agent and sulfonation process 失效
标题翻译：磺化剂和磺化工艺
公开(公告)号：US5596128A
公开(公告)日：1997-01-21
申请号：US300844
申请日：1994-09-06
申请人： Eiji Ogata , Norio Yanase , Takayuki Kitahara
发明人： Eiji Ogata , Norio Yanase , Takayuki Kitahara
IPC分类号： C07B45/02 , C07C303/04 , C07C309/30 , C07C309/35 , C07C309/43 , C07C309/45 , C07C309/46 , C07C309/50 , C08F8/36 , C07C303/02
CPC分类号： C07C303/04 , C07B45/02 , C08F8/34 , C07C2103/24
摘要： A sulfonating agent represented by the general formula ##STR1## wherein the groups R.sup.1 are the same or different and are each a lower alkyl group having 1 to 3 carbon atoms, n is an integer of 3, 4 or 5, m is an integer of 1 or 2, and n+m.ltoreq.6, and a process for sulfonating an aromatic compound with use of the sulfonating agent.
摘要翻译：由通式表示的磺化剂，其中基团R 1相同或不同，并且各自是具有1至3个碳原子的低级烷基，n是3,4或5的整数，m是 1或2，n + m 6，以及使用磺化剂磺化芳族化合物的方法。

5. 发明授权

US07456321B2 Process for producing high-purity 4,4′-dihydroxydiphenyl sulfone 失效
标题翻译：生产高纯度4,4'-二羟基二苯砜的方法
公开(公告)号：US07456321B2
公开(公告)日：2008-11-25
申请号：US10529074
申请日：2003-09-22
申请人： Eiji Ogata , Fumio Oi , Norio Yanase , Nobuyuki Nate
发明人： Eiji Ogata , Fumio Oi , Norio Yanase , Nobuyuki Nate
IPC分类号： C07F315/00
CPC分类号： C07C315/00 , C07C315/06 , C07C317/22
摘要： The present invention provides a process for producing 4,4′-dihydroxydiphenylsulfone of very high purity. In particular, the present invention provides a process for producing 4,4′-dihydroxydiphenylsulfone of high purity comprising the steps of subjecting phenol in combination with a sulfonating agent or phenolsulfonic acid to a dehydration reaction in the presence of an aromatic nonpolar solvent while suspending the resulting dihydroxydiphenylsulfone therein, mixing the reaction suspension with a polar solvent to at least partially dissolve the dihydroxydiphenylsulfone, and precipitating 4,4′-dihydroxydiphenylsulfone.
摘要翻译：本发明提供了一种制备非常高纯度的4,4'-二羟基二苯砜的方法。特别地，本发明提供了一种制备高纯度的4,4'-二羟基二苯基砜的方法，包括以下步骤：在芳族非极性溶剂的存在下使苯酚与磺化剂或苯酚磺酸组合进行脱水反应，同时使将反应悬浮液与极性溶剂混合至少部分溶解二羟基二苯基砜，并沉淀出4,4'-二羟基二苯基砜。

6. 发明申请

US20050272603A1 Color developer and thermal recording material containing the same 审中-公开
标题翻译：彩色显影剂和含有其的热敏记录材料
公开(公告)号：US20050272603A1
公开(公告)日：2005-12-08
申请号：US10528784
申请日：2003-09-22
申请人： Fumio Oi , Norio Yanase , Nobuyuki Nate
发明人： Fumio Oi , Norio Yanase , Nobuyuki Nate
IPC分类号： B41M5/333 , B41M5/337 , B41M5/30
CPC分类号： B41M5/3336
摘要： A thermal recording material includes a thermosensitive coloring layer, which is made by applying a dispersion liquid, in which the developer and a coloring dye are dispersed, onto a supporting base, and then drying the base. The developer contains 4,4′-dihydroxydiphenyl sulfone as a major component; and 2,4′dihydroxydiphenyl sulfone, the 4,4′-dihydroxydiphenyl sulfone and the 2,4′-dihydroxydiphenyl sulfone being contained at a weight ratio greater than 90:10 and no more than 100:0, and the developer containing phenolsulfonic acid phenyl ester no more than 1.5% by weight with respect to a sum quantity of the 4,4′-dihydroxydiphenyl sulfone and the 2,4′-dihydroxydiphenyl sulfone. The present invention thus provides a thermal recording material causing less surface texture fogging and is superior in preservation ability, and also provides a developer suitably used as a component of the thermal recording material.
摘要翻译：热敏记录材料包括通过将其中分散有显色剂和着色染料的分散液施加到支撑基底上，然后干燥基底而制成的热敏着色层。显影剂含有4,4'-二羟基二苯砜作为主要成分; 和2,4'-二羟基二苯砜，4,4'-二羟基二苯砜和2,4'-二羟基二苯砜以重量比大于90:10且不大于100:0的含量，并含有苯酚磺酸的显影剂苯基酯相对于4,4'-二羟基二苯基砜和2,4'-二羟基二苯基砜的总量不超过1.5重量％。因此，本发明提供了一种导致较少表面纹理起雾并且保存能力优异的热敏记录材料，并且还提供了适合用作热敏记录材料的组分的显影剂。

7. 发明授权

US06965054B2 Process for producing mixture of dihydroxydiphenylsulfone isomers 失效
标题翻译：制备二羟基二苯砜异构体混合物的方法
公开(公告)号：US06965054B2
公开(公告)日：2005-11-15
申请号：US10490819
申请日：2002-09-26
申请人： Fumio Oi , Norio Yanase , Masamichi Yamamoto
发明人： Fumio Oi , Norio Yanase , Masamichi Yamamoto
IPC分类号： C07C315/04 , C07C317/22 , C07C317/33
CPC分类号： C07C315/04 , C07C317/22
摘要： The present invention provides a process for producing a mixture of dihydroxydiphenylsulfone isomers containing 2,4′-dihydroxydiphenylsulfone, the process comprising heating 4,4′-dihydroxydiphenylsulfone or a mixture of dihydroxydiphenylsulfone isomers containing at least 85 wt. % of 4,4′-dihydroxydiphenylsulfone in the presence of phenol and sulfuric or sulfonic acid.
摘要翻译：本发明提供一种生产含有2,4'-二羟基二苯砜的二羟基二苯砜异构体混合物的方法，该方法包括加热4,4'-二羟基二苯基砜或含有至少85重量％的二羟基二苯砜异构体的混合物。％的4,4'-二羟基二苯砜在苯酚和硫酸或磺酸存在下进行。

8. 发明授权

US06861562B2 Process for producing mixture of dihydroxydiphenylsulfone isomers 失效
标题翻译：制备二羟基二苯砜异构体混合物的方法
公开(公告)号：US06861562B2
公开(公告)日：2005-03-01
申请号：US10490754
申请日：2002-09-26
申请人： Fumio Oi , Norio Yanase , Hiroyuki Yamamoto
发明人： Fumio Oi , Norio Yanase , Hiroyuki Yamamoto
IPC分类号： C07B61/00 , C07C315/04 , C07C317/22
CPC分类号： C07C315/04 , C07C317/22
摘要： The present invention provides a process for producing a mixture of 4,4′- and 2,4′-dihydroxydiphenylsulfones comprising heating trihydroxytriphenyldisulfone or a mixture of dihydroxydiphenylsulfone isomers containing trihydroxytriphenyldisulfone in the presence of phenol and an acid catalyst.
摘要翻译：本发明提供一种制备4,4'-和2,4'-二羟基二苯砜的混合物的方法，包括在苯酚和酸催化剂存在下加热三羟基三苯基二砜或含有三羟基三苯基二砜的二羟基二苯砜异构体的混合物。

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