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1. 发明授权

US06579990B2 Process for producing refined pyromellitic acid and refined pyromellitic anhydride 失效
公开(公告)号：US06579990B2
公开(公告)日：2003-06-17
申请号：US09933075
申请日：2001-08-21
申请人： Kazuo Tanaka , Atsushi Okoshi , Kengi Nakaya
发明人： Kazuo Tanaka , Atsushi Okoshi , Kengi Nakaya
IPC分类号： C07D49300
CPC分类号： C07C51/56 , C07C51/43 , C07C51/573 , C07C63/313
摘要： A process for refined pyromellitic anhydride which comprises dissolving crude pyromellitic acid or crude pyromellitic anhydride in water, then cooling an aqueous solution thus obtained to perform crystallization as pyromellitic acid, then separating a crystal thus obtained from water, then anhydrating the crystal of pyromellitic acid thus separated with heating to produce pyromellitic anhydride, then vaporizing pyromellitic anhydride thus produced, cooling vapor of pyromellitic anhydride thus obtained, and thereby, recovering a refined crystal of pyromellitic anhydride.

2. 发明授权

US06472540B1 Process for producing &egr;-caprolactone 失效
标题翻译：生产ε-己内酯的方法
公开(公告)号：US06472540B1
公开(公告)日：2002-10-29
申请号：US09617547
申请日：2000-07-14
申请人： Kazuo Tanaka , Atsushi Okoshi , Hiroshi Ogawa
发明人： Kazuo Tanaka , Atsushi Okoshi , Hiroshi Ogawa
IPC分类号： C07D31304
CPC分类号： C07D313/04
摘要： What is disclosed is a process for producing &egr;-caprolactone which comprises removing impurities by distillation from a reaction mixture obtained by co-oxidation of cyclohexanone and aldehyde, wherein &egr;-caprolactone separated from a purifying column is contacted with oxygen containing gas in the presence of cobalt. High boiling point components are removed to give an acid value of lower than 0.15 mgKOH/g. Thereby, a high quality &egr;-caprolactone providing improved polymer appearance is produced advantageously on an industrial scale without repeated purifying distillations or without using expensive stabilizer or adsorbent for the improvement of color.
摘要翻译：公开的是一种生产ε-己内酯的方法，其包括通过环己酮和醛的共氧化反应获得的反应混合物中的杂质除去杂质，其中在纯化塔分离的ε-己内酯与含氧气体在存在下接触钴。除去高沸点成分，得到低于0.15mgKOH / g的酸值。因此，提供改善的聚合物外观的高品质ε-己内酯有利地在工业规模上生产，而无需重复纯化蒸馏或不使用昂贵的稳定剂或吸附剂来改善颜色。

3. 发明授权

US06458994B2 Process for producing aromatic polycarboxylic acid 失效
公开(公告)号：US06458994B2
公开(公告)日：2002-10-01
申请号：US09861629
申请日：2001-05-22
申请人： Atsushi Okoshi , Etsuo Urabe , Masashi Yabuno , Hiroshi Ogawa , Kazuo Tanaka
发明人： Atsushi Okoshi , Etsuo Urabe , Masashi Yabuno , Hiroshi Ogawa , Kazuo Tanaka
IPC分类号： C07C5116
CPC分类号： C07C51/235 , C07C63/307
摘要： A process for producing a polycarboxylic acid which comprises performing liquid phase oxidation of polyalkyl-substituted aromatic aldehyde and/or oxide derivative of polyalkyl-substituted aromatic aldehyde as raw material for oxidation with molecular oxygen at two stages in water solvent in the presence of a catalyst comprising bromine or both bromine and a heavy metal(s) at a temperature of 180 to 280 ° C., thereby producing trimellitic acid or pyromellitic acid, wherein said liquid phase oxidation is performed in a continuous operation at the first stage and in a continuous operation or in a batch operation at the second stage and a total amount of bromine in said catalyst is divided to add separately at each the first stage and the second stage.

4. 发明授权

US5994565A Process for producing purified .epsilon.-caprolactone 失效
标题翻译：纯化ε-己内酯的制备方法
公开(公告)号：US5994565A
公开(公告)日：1999-11-30
申请号：US271966
申请日：1999-03-18
申请人： Kazuo Tanaka , Atsushi Okoshi , Hiroshi Ogawa
发明人： Kazuo Tanaka , Atsushi Okoshi , Hiroshi Ogawa
IPC分类号： C07D201/16 , C07D313/04
CPC分类号： C07D313/04
摘要： A process for producing purified .epsilon.-caprolactone from an .epsilon.-caprolactone-containing reaction product produced by the oxidation of cyclohexanone comprising subjecting the .epsilon.-caprolactone-containing reaction product to an alkali-treatment in the presence of an inert gas atmosphere or to a heat treatment in the presence of an inert gas atmosphere or to a combined alkali-treatment and heat treatment, and distilling the treated reaction product.
摘要翻译：由通过环己酮氧化制备的含有ε-己内酯的反应产物制备纯化的ε-己内酯的方法，包括在含有ε-己内酯的反应产物在惰性气体气氛或热的存在下进行碱处理在惰性气体气氛的存在下进行处理或进行组合的碱处理和热处理，并蒸馏处理的反应产物。

5. 发明授权

US06888023B2 Process for producing pyromellitic acid 失效
标题翻译：制备均苯四酸的方法
公开(公告)号：US06888023B2
公开(公告)日：2005-05-03
申请号：US10440255
申请日：2003-05-19
申请人： Kazuo Tanaka , Hiroshi Ogawa , Ikutraro Maruki , Atsushi Okoshi
发明人： Kazuo Tanaka , Hiroshi Ogawa , Ikutraro Maruki , Atsushi Okoshi
IPC分类号： C07C51/265 , C07C51/23
CPC分类号： C07C51/265 , C07C63/313
摘要： A process for producing pyromellitic acid which comprises oxidizing 2,4,5-trimethylbenzaldehyde and/or its oxidized derivative in the presence of a catalyst containing iron, manganese and bromine, or additionally containing zirconium or cerium continuously or semi-continuously using aqueous acetic acid solvent and 0.05-2% by weight of bromide ion. The catalyst used in the present invention has high activity, and the catalyst solution has low corrosive because the reaction is performed at low bromide concentration by using a solvent of aqueous acetic acid. So pyromellitic acid is produced industrially advantageously in high yield continuously or semi-continuously which has been a major difficulty up to now.
摘要翻译：一种制备均苯四酸的方法，其包括在含铁，锰和溴的催化剂存在下氧化2,4,5-三甲基苯甲醛和/或其氧化的衍生物，或者使用乙酸水溶液连续或半连续地加入锆或铈溶剂和0.05-2重量％的溴离子。本发明中使用的催化剂具有高活性，催化剂溶液具有低腐蚀性，因为通过使用乙酸水溶液的低溴化物浓度进行反应。所以均苯四酸在工业上有利地以高产率连续或半连续地产生，这在现在是一个主要的困难。

6. 发明授权

US08034962B2 Acid anhydride ester and composition thereof, and heat-curable resin composition and cured product thereof 有权
标题翻译：酸酐酯及其组合物，以及热固性树脂组合物及其固化物
公开(公告)号：US08034962B2
公开(公告)日：2011-10-11
申请号：US11835609
申请日：2007-08-08
申请人： Tomohiro Sugawara , Takeshi Koyama , Atsushi Okoshi , Takashi Sato , Shuichi Ueno
发明人： Tomohiro Sugawara , Takeshi Koyama , Atsushi Okoshi , Takashi Sato , Shuichi Ueno
IPC分类号： C07D407/04 , C08G65/48
CPC分类号： C07D307/89 , B33Y70/00
摘要： The present invention provides an acid anhydride ester obtained by esterifying cyclohexane-1,2,4-tricarboxylic acid-1,2-anhydride and a composition of the ester, and a heat-curable resin composition and a cured product of the composition. _Provided is an epoxy resin composition using the acid anhydride ester as a curing agent for an epoxy resin, the epoxy resin composition having, for example, the following properties (1), (2), and (3): (1) the epoxy resin composition has a low viscosity at room temperature, so the components of the composition can be favorably blended with each other, (2) the acid anhydride ester has a low vapor pressure at curing temperature, so no evaporation loss occurs after curing, and the intended design of blend is capable, and (3) a cured product to be made from the composition is colorless and transparent, and changes its color to a small extent even when the product is irradiated with light or heated for a long time period. The composition is suitably used as, for example, an encapsulant for a photoelectric conversion element such as a blue LED or a white LED, a molded article, a coating, or an adhesive.
摘要翻译：本发明提供通过酯化环己烷-1,2,4-三羧酸-1,1-酐和酯的组合物得到的酸酐酯，以及热固性树脂组合物和该组合物的固化物。提供使用酸酐酯作为环氧树脂固化剂的环氧树脂组合物，该环氧树脂组合物具有例如以下性质（1），（2）和（3）：（1）环氧树脂树脂组合物在室温下的粘度低，因此可以有利地将组合物的组分相互混合，（2）酸酐在固化温度下蒸气压低，固化后不会发生蒸发损失，共混物的预期设计是能够的，并且（3）由该组合物制成的固化产物是无色透明的，并且即使当产品被光照射或长时间加热时也将它的颜色变化很小。该组合物适合用作例如蓝色LED或白色LED的光电转换元件的密封剂，成型品，涂层或粘合剂。

7. 发明申请

US20080306223A1 Curing Agent for Epoxy Resins and Epoxy Resin Compositions 有权
标题翻译：环氧树脂固化剂和环氧树脂组合物
公开(公告)号：US20080306223A1
公开(公告)日：2008-12-11
申请号：US11629187
申请日：2005-05-17
申请人： Atsushi Okoshi , Ryuji Ideno , Takao Ota
发明人： Atsushi Okoshi , Ryuji Ideno , Takao Ota
IPC分类号： C08L63/00 , C09K3/00
CPC分类号： C08G59/4215 , C08L63/00
摘要： A curing agent for epoxy resins which comprises cyclohexanetricarboxylic acid anhydride (A) comprising trans,trans-1,2,4-cyclohexanetricarboxylic acid 1,2-anhydride expressed by formula (1) and aliphatic dicarboxylic acid anhydride (B) and an epoxy resin composition which comprises the curing agent and an epoxy resin are provided. The curing agent of the present invention can be handled easily since the curing agent is liquid at the ordinary temperature, exhibits an excellent curing property without addition of a curing accelerator and provides a cured product of an epoxy resin exhibiting excellent transmission of light and heat stability. The epoxy resin composition can be advantageously used for coating materials, adhesives, molded products, resins for encapsulating photo-semiconductors and coating fluids for protective films of color filters constituting liquid crystal display devices (LCD), solid state imaging devices (CCD) and electroluminescence (EL) devices.
摘要翻译：环氧树脂固化剂，其包含由式（1）表示的反式，反式-1,2,4-环己烷三羧酸1,2-酐和脂族二羧酸酐（B）的环己烷三羧酸酐（A）和环氧树脂提供了包含固化剂和环氧树脂的组合物。本发明的固化剂可以容易地处理，因为固化剂在常温下为液体，在不加入固化促进剂的情况下表现出优异的固化性能，并且提供具有优异的光和热稳定性透过性的环氧树脂的固化产物。环氧树脂组合物可以有利地用于涂覆材料，粘合剂，模塑产品，用于封装光半导体的树脂和用于构成液晶显示装置（LCD），固态成像装置（CCD）和电致发光的彩色滤光片的保护膜的涂布液（EL）设备。

8. 发明申请

US20050054879A1 Process for producing alicyclic aldehydes 有权
标题翻译：生产脂环醛的方法
公开(公告)号：US20050054879A1
公开(公告)日：2005-03-10
申请号：US10924811
申请日：2004-08-25
申请人： Tomohiro Sugawara , Fumiya Zaima , Atsushi Okoshi , Kinji Kato , Masato Inari
发明人： Tomohiro Sugawara , Fumiya Zaima , Atsushi Okoshi , Kinji Kato , Masato Inari
IPC分类号： C07C45/59 , C07D317/12 , G03C1/492
CPC分类号： C07D317/12 , C07C45/59 , Y02P20/55 , C07C47/32
摘要： In the production of an alicyclic aldehyde, a starting aromatic aldehyde is converted into an aromatic acetal for protecting the formyl group. The aromatic ring of the aromatic acetal is then hydrogenated to convert the aromatic acetal into an alicyclic acetal, which is then hydrolyzed to cleave the acetal protecting group to obtain the aimed alicyclic aldehyde.
摘要翻译：在制备脂环醛时，将起始芳族醛转化成芳族缩醛以保护甲酰基。然后将芳族缩醛的芳环加氢以将芳族缩醛转化为脂环族缩醛，然后将其水解以切割缩醛保护基以获得目标脂环族醛。

9. 发明授权

US07323522B2 Cyclohexanetricarboxylic monoester and its use 有权
标题翻译：环己烷单酯及其用途
公开(公告)号：US07323522B2
公开(公告)日：2008-01-29
申请号：US10912048
申请日：2004-08-06
申请人： Ryuji Ideno , Takeshi Koyama , Atsushi Okoshi , Takao Ota
发明人： Ryuji Ideno , Takeshi Koyama , Atsushi Okoshi , Takao Ota
IPC分类号： C08L63/00 , B32B27/38 , H01L21/56
CPC分类号： C08F222/1006 , Y10T428/31511
摘要： The cyclohexanetricarboxylic monoester of the present invention is represented by the following formula 1: wherein R is as defined in the specification. The cyclohexanetricarboxylic monoester is useful particularly as the curing agent for epoxy-containing compounds. A heat-curable resin composition comprising the cyclohexanetricarboxylic monoester and an epoxy-containing compound exhibits an excellent curability without using a curing accelerator and provides a colorless transparent cured product which is little discolored even under a long-term exposure to high-temperature conditions. Such a heat-curable resin composition is suitable as sealing materials for photoelectric transducers such as blue LED and white LED, shaped articles, coating materials, adhesives, etc.
摘要翻译：本发明的环己烷三羧酸单酯由下式1表示：其中R如说明书中所定义。环己烷三羧酸单酯特别用作含环氧化合物的固化剂。包含环己烷三羧酸单酯和含环氧化合物的热固化树脂组合物在不使用固化促进剂的情况下表现出优异的固化性，并提供即使在长期暴露于高温条件下几乎不变色的无色透明固化产物。这种热固化性树脂组合物适用于蓝色LED和白色LED，成型制品，涂料，粘合剂等光电换能器的密封材料。

10. 发明申请

US20070123716A1 Liquid cyclohexane-tricarboxylic acid anhydride 有权
标题翻译：液体环己烷 - 三羧酸酐
公开(公告)号：US20070123716A1
公开(公告)日：2007-05-31
申请号：US10579446
申请日：2004-11-19
申请人： Atsushi Okoshi
发明人： Atsushi Okoshi
IPC分类号： C07D307/77
CPC分类号： C07D307/89
摘要： Trans, trans-1,2,4-cyclohexanetricarboxylic acid-1,2-anhydride represented by the following formula 1: a cyclohexanetricarboxylic anhydride being liquid at ordinary temperatures which contains such a anhydride, and a production method thereof. The cyclohexanetricarboxylic anhydride being liquid at ordinary temperatures is produced by melting 1,2,4-cyclohexanetricarboxylic acid and/or 1,2,4-cyclohexanetricarboxylic acid-1,2-anhydride at 180 to 300° C. under heating. Since the cyclohexanetricarboxylic anhydride is liquid at ordinary temperatures. it is advantageously used in industrial applications such as raw materials or modifiers for coating compositions, adhesives, shaped articles, sealing resins for photosemiconductors, curing agents and polyimide resins, raw materials for plasticizers and lubricant oils, intermediates for medicines and agricultural chemicals, raw material for coating resins, raw material for toner resins, etc.
摘要翻译：反式，由下式1表示的反式-1,2,4-环己烷三羧酸-1-1酸酐及其制备方法：在常温下为液体的环己烷三羧酸酐及其制备方法。在常温下为液体的环己烷三羧酸酐是通过在加热下在180-300℃熔化1,2,4-环己烷三羧酸和/或1,2,4-环己烷三羧酸-1,1-酐而得到的。由于环己烷三羧酸酐在常温下为液体。它有利地用于工业应用中，例如用于涂料组合物的原料或改性剂，粘合剂，成型制品，用于光电半导体的密封树脂，固化剂和聚酰亚胺树脂，用于增塑剂和润滑油的原料，药物和农药的中间体，原料用于涂布树脂，调色剂树脂的原料等

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