公开(公告)号：US5895820A

公开(公告)日：1999-04-20

申请号：US115993

申请日：1998-07-15

申请人： Kazuo Tanaka ,  Masashi Yabuno ,  Hiroshi Ogawa ,  Atsushi Ohkoshi

发明人： Kazuo Tanaka ,  Masashi Yabuno ,  Hiroshi Ogawa ,  Atsushi Ohkoshi

IPC分类号： C07C51/265 ,  C07C51/573

CPC分类号： C07C51/265 ,  C07C51/573

摘要： A process for the production of a trimellitic acid by oxidizing dialkyl aromatic aldehyde and/or its oxide derivative in a liquid phase, the oxidation being carried out in a lower aliphatic carboxylic acid solvent having a water content of 5 to 70% by weight in the presence of a catalyst containing a heavy metal and bromine or being carried out in a solvent containing a lower aliphatic carboxylic acid in the presence of a bromine-manganese catalyst system containing zirconium and/or cerium, and a process for the production of high-quality trimellitic acid anhydride from the trimellitic acid.

摘要翻译： 通过在液相中氧化二烷基芳族醛和/或其氧化物衍生物来生产偏苯三酸的方法，该氧化是在含水量为5-70重量％的低级脂族羧酸溶剂中进行的 在含有锆和/或铈的溴 - 锰催化剂体系的存在下，存在含有重金属和溴的催化剂或在含有低级脂肪族羧酸的溶剂中进行的催化剂，以及生产高质量的方法 偏苯三酸的偏苯三酸酐。

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.

公开(公告)号：US07569707B2

公开(公告)日：2009-08-04

申请号：US11490126

申请日：2006-07-21

申请人： Hiroshi Ogawa ,  Atsushi Okoshi ,  Masashi Yabuno ,  Masato Inari

发明人： Hiroshi Ogawa ,  Atsushi Okoshi ,  Masashi Yabuno ,  Masato Inari

IPC分类号： C07D493/04

CPC分类号： C07C51/56 ,  C07C63/313

摘要： A method of producing pyromellitic dianhydride. The method includes a step of heating a crude pyromellitic acid in the absence of acetic anhydride to convert a part of pyromellitic acid to pyromellitic anhydride, and a subsequent step of heating the resultant mixture in the presence of acetic anhydride to complete the anhydrization of pyromellitic acid. The pyromellitic dianhydride by the method contains little pyromellitic monoanhydride and other monoanhydrides derived from impurities and is less discolored. The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.

摘要翻译： 制备均苯四酸二酐的方法。 该方法包括在不存在乙酸酐的情况下加热粗均苯四酸酸以将一部分均苯四酸转化为均苯四酸酐的步骤，随后在乙酸酐存在下加热得到的混合物以完成均苯四酸酸的脱水 。 通过该方法，均苯四酸二酐含有少量均苯四酸单酸酐和衍生自杂质的其它一元酸，并且较少变色。 均苯四酸二酐在其运输，储存和使用期间具有不引起堵塞等的颗粒性质。

公开(公告)号：US20070021622A1

公开(公告)日：2007-01-25

申请号：US11490126

申请日：2006-07-21

申请人： Hiroshi Ogawa ,  Atsushi Okoshi ,  Masashi Yabuno ,  Masato Inari

发明人： Hiroshi Ogawa ,  Atsushi Okoshi ,  Masashi Yabuno ,  Masato Inari

IPC分类号： C07D307/77

CPC分类号： C07C51/56 ,  C07C63/313

摘要： A method of producing pyromellitic dianhydride. The method includes a step of heating a crude pyromellitic acid in the absence of acetic anhydride to convert a part of pyromellitic acid to pyromellitic anhydride, and a subsequent step of heating the resultant mixture in the presence of acetic anhydride to complete the anhydrization of pyromellitic acid. The pyromellitic dianhydride by the method contains little pyromellitic monoanhydride and other monoanhydrides derived from impurities and is less discolored. The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.

摘要翻译： 制备均苯四酸二酐的方法。 该方法包括在不存在乙酸酐的情况下加热粗均苯四酸酸以将一部分均苯四酸转化为均苯四酸酐的步骤，随后在乙酸酐存在下加热得到的混合物以完成均苯四酸酸的脱水 。 通过该方法，均苯四酸二酐含有少量均苯四酸单酸酐和衍生自杂质的其它一元酸，并且较少变色。 均苯四酸二酐在其运输，储存和使用期间具有不引起堵塞等的颗粒性质。

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。

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。

公开(公告)号：US6018077A

公开(公告)日：2000-01-25

申请号：US48494

申请日：1998-03-26

申请人： Fumio Ohkoshi ,  Hiroshi Ogawa ,  Kazuo Tanaka ,  Masato Inari ,  Hiroshi Machida

发明人： Fumio Ohkoshi ,  Hiroshi Ogawa ,  Kazuo Tanaka ,  Masato Inari ,  Hiroshi Machida

IPC分类号： C07C51/265 ,  C07C51/16

CPC分类号： C07C51/265

摘要： A process for producing 2,6-naphthalenedicarboxylic acid comprising oxidizing 2,6-dimethylnaphthalene with a gas containing oxygen in a solvent comprising a lower aliphatic carboxylic acid in the presence of a catalyst comprising cobalt, manganese, and bromine, wherein the total amount of cobalt and manganese in the catalyst is 50 to 300 mg atom per 1 g mol of 2,6-dimethylnaphthalene, a ratio by g atom of manganese to cobalt in the catalyst is 20:1 to 4:1, and the oxidation is conducted at a temperature of 200 to 250.degree. C.; and a process as described above, wherein a mother liquor which is obtained from a slurry of a product of the oxidation via a step of solid-liquid separation is recyled to a step of oxidation after heat treatment at a temperature of 150.degree. C. or higher. In accordance with the processes, accumulation of substances which affect the oxidation adversely is prevented. Moreover, a large fraction of a mother liquor of oxidation can be recycled without decrease in the yield of the reaction, and the catalyst components and the solvent components in the mother liquor of oxidation can be utilized efficiently.

摘要翻译： 一种2,6-萘二甲酸的制造方法，其特征在于，在包含钴，锰，溴的催化剂的存在下，在含有低级脂肪族羧酸的溶剂中，在含有氧的气体中，使2,6-二甲基萘氧化， 催化剂中的钴和锰在每1克摩尔2,6-二甲基萘中为50〜300mg原子，催化剂中锰与钴的原子比为20：1〜4：1，氧化反应在 温度为200〜250℃。 和如上所述的方法，其中将通过固液分离步骤的氧化产物的浆料获得的母液在150℃的温度下再热处理至氧化步骤，或 更高。 根据这些方法，可以防止影响氧化的物质的积累。 此外，大部分的氧化母液可以循环使用而不会降低反应的产率，并且可有效地利用氧化母液中的催化剂组分和溶剂组分。

公开(公告)号：US06410753B1

公开(公告)日：2002-06-25

申请号：US09861627

申请日：2001-05-22

申请人： Kazuo Tanaka ,  Hiroshi Ogawa ,  Ikutaro Maruki

发明人： Kazuo Tanaka ,  Hiroshi Ogawa ,  Ikutaro Maruki

IPC分类号： C07D30789

摘要： A process for producing trimellitic anhydride which comprises performing liquid phase oxidation of pseudocumene containing 5% by weight or above of dimethyl bezaldehyde as a raw material for oxidation with air in aliphatic monocarboxylic acid having 1 to 5 carbon atoms as a solvent in the presence of a catalyst comprising both each metal of cobalt, manganese and zirconium and bromine to obtain trimellitic acid and then heat dehydrating trimellitic acid thus obtained or heat treating trimellitic acid thus obtained in the presence of a catalyst comprising 10 ppm or above of Ni thereby producing trimellitic anhydride.

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。

公开(公告)号：US09315691B2

公开(公告)日：2016-04-19

申请号：US13282799

申请日：2011-10-27

申请人： Hiroshi Ogawa ,  Tatsuhiro Suwa

发明人： Hiroshi Ogawa ,  Tatsuhiro Suwa

IPC分类号： C08F8/30 ,  C09J7/02 ,  C08K5/14 ,  C08K5/29 ,  C08K5/00 ,  C08K5/544

CPC分类号： C09J7/0217 ,  C08K5/0025 ,  C08K5/14 ,  C08K5/29 ,  C08K5/5442 ,  C09J7/385 ,  C09J2205/102

摘要： An adhesive composition, an optical member, a surface protective film, and an adhesive sheet, the adhesive composition including 100 parts by weight of a (meth)acrylic copolymer having a weight average molecular weight of about 100,000 to about 2,000,000 g/mol; about 0.01 to about 5 parts by weight of a peroxide crosslinking agent; and about 0.001 to about 5 parts by weight of a carbodiimide.

摘要翻译： 粘合剂组合物，光学构件，表面保护膜和粘合片，粘合剂组合物包含100重量份的重均分子量为约100,000至约2,000,000g / mol的（甲基）丙烯酸共聚物; 约0.01至约5重量份的过氧化物交联剂; 和约0.001至约5重量份的碳二亚胺。