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    • 1. 发明授权
    • Process for the preparation of cyclic esters and method for purification of the same
    • 环酯的制备方法及其纯化方法
    • US06916939B2
    • 2005-07-12
    • US10344461
    • 2001-08-08
    • Kazuyuki YamaneYukichika KawakamiHajime HoshiKazuhiko Sunagawa
    • Kazuyuki YamaneYukichika KawakamiHajime HoshiKazuhiko Sunagawa
    • C07D319/12
    • C08J3/28C07D319/12C08J11/24C08J2300/14C08J2367/04Y02W30/706
    • The present invention provides a process for production of a cyclic ester by depolymerization of an aliphatic polyester. In the process, a mixture containing the aliphatic polyester and a specific polyalkylene glycol ether, which has a boiling point of 230-450° C. and a molecular weight of 150-450, is heated under normal or reduced pressure to a temperature at which depolymerization of the aliphatic polyester takes place. Then, a substantially homogeneous solution phase, consisting of the melt phase of the aliphatic polyester and the liquid phase of the polyalkylene glycol ether, is formed. Heating of the solution phase is continued to form the cyclic ester by depolymerization and distil out the cyclic ester together with the polyalkylene glycol ether, and then the cyclic ester is recovered from the distillate. The present invention also provides a process for purification of a crude cyclic ester by use of the specific polyalkylene glycol ether described above.
    • 本发明提供了通过脂肪族聚酯的解聚制备环状酯的方法。 在该方法中,将含有脂族聚酯和特定的聚亚烷基二醇醚的混合物在沸点为230-450℃,分子量为150-450的条件下,在正常或减压下加热至 发生脂肪族聚酯的解聚。 然后,形成由脂肪族聚酯的熔融相和聚亚烷基二醇醚的液相组成的基本均匀的溶液相。 溶液相的加热继续通过解聚形成环酯,并与聚亚烷基二醇醚一起蒸馏出环状酯,然后从馏出物中回收环状酯。 本发明还提供了通过使用上述特定的聚亚烷基二醇醚来纯化粗环酯的方法。
    • 3. 发明授权
    • Process for the manufacture of 2-phenyl-4,5-oxazoledione
4-phenylhydrazone derivatives
    • 2-苯基-4,5-恶唑二酮4-苯腙衍生物的制备方法
    • US5646291A
    • 1997-07-08
    • US431573
    • 1995-05-01
    • Hajime HoshiKazuhiko SunagawaTakeo Watanabe
    • Hajime HoshiKazuhiko SunagawaTakeo Watanabe
    • C09B26/02C07D263/18
    • C09B26/02
    • A process for manufacturing derivatives of 2-phenyl-4,5-oxazoledione 4-phenylhyrazone is disclosed. The process comprises reacting a derivative of a benezenediazonium salt, a hippuric acid derivative, and acetic anhydride in the presence of a neutralizing agent to effect the cyclization reaction for the formation of the oxazolone ring and the succeeding diazo-coupling reaction. The process does not require the conventional separate, independent step for the preparation of a solution of a hippuric acid derivative and acetic anhydride, thus eliminating the quick heating and quenching procedures and further avoiding the loss of the hippuric acid derivative due to decomposition of the oxazolone derivative. There is thus obtained a high yield of the desired product in a short period of time.
    • 公开了一种制备2-苯基-4,5-恶唑二酮4-苯基腙的衍生物的方法。 该方法包括在中和剂存在下使衍生重氮盐,马尿酸衍生物和乙酸酐的衍生物进行反应,以进行恶唑酮环的形成和后续的重氮偶合反应的环化反应。 该方法不需要用于制备马尿酸衍生物和乙酸酐的常规独立的独立步骤,因此消除了快速加热和淬灭程序,并进一步避免了由于恶唑酮分解导致的马尿酸衍生物的损失 衍生物。 因此在短时间内获得了高产率的所需产物。
    • 5. 发明授权
    • Production process of glycolide
    • 乙交酯的生产过程
    • US08722907B2
    • 2014-05-13
    • US13142012
    • 2009-12-09
    • Shigeru SuzukiKazuyuki YamaneToshihiko OnoKazuhiko Sunagawa
    • Shigeru SuzukiKazuyuki YamaneToshihiko OnoKazuhiko Sunagawa
    • C07D319/00
    • C07D319/12
    • The invention provides a production process of glycolide comprising the respective steps of: Step 1 of heating a mixture containing a glycolic acid oligomer and a high boiling polar organic under normal or reduced pressure to reflux the mixture and at that time, conducting a total reflux operation in a reflux time within a range of 0.1 to 20 hours under conditions that substantially the whole amount of a distillate distilled out of a reflux system containing the mixture is refluxed into the reflux system; Step 2 of heating the mixture after the total reflux operation or a mixture obtained by adding the high boiling polar organic solvent to a glycolic acid oligomer component recovered from the mixture after the total reflux operation to conduct depolymerization; and Step 3 of collecting glycolide from a co-distillate.
    • 本发明提供了一种乙交酯的制备方法,其包括以下各步骤:步骤1,在正常或减压下加热含有乙醇酸低聚物和高沸点极性有机物的混合物以回流混合物,并且此时进行总的回流操作 在从含有该混合物的回流系统蒸馏出的基本上全部量的馏出物回流至回流系统的条件下,在0.1至20小时的范围内的回流时间内, 在全部回流操作之后加热混合物的步骤2或通过在完全回流操作后从混合物中回收的乙醇酸低聚物组分加入高沸点极性有机溶剂而获得的混合物进行解聚; 和从共馏出物收集乙交酯的步骤3。
    • 6. 发明申请
    • Production Process of Glycolide
    • 乙交酯的生产工艺
    • US20110263875A1
    • 2011-10-27
    • US13142012
    • 2009-12-09
    • Shigeru SuzukiKazuyuki YamaneToshihiko OnoKazuhiko Sunagawa
    • Shigeru SuzukiKazuyuki YamaneToshihiko OnoKazuhiko Sunagawa
    • C07D319/12
    • C07D319/12
    • The invention provides a production process of glycolide comprising the respective steps of: Step 1 of heating a mixture containing a glycolic acid oligomer and a high boiling polar organic under normal or reduced pressure to reflux the mixture and at that time, conducting a total reflux operation in a reflux time within a range of 0.1 to 20 hours under conditions that substantially the whole amount of a distillate distilled out of a reflux system containing the mixture is refluxed into the reflux system; Step 2 of heating the mixture after the total reflux operation or a mixture obtained by adding the high boiling polar organic solvent to a glycolic acid oligomer component recovered from the mixture after the total reflux operation to conduct depolymerization; and Step 3 of collecting glycolide from a co-distillate.
    • 本发明提供了一种乙交酯的制备方法,其包括以下各步骤:步骤1,在正常或减压下加热含有乙醇酸低聚物和高沸点极性有机物的混合物以回流混合物,并且此时进行总的回流操作 在从含有该混合物的回流系统蒸馏出的基本上全部量的馏出物回流至回流系统的条件下,在0.1至20小时的范围内的回流时间内, 在全部回流操作之后加热混合物的步骤2或通过在完全回流操作后从混合物中回收的乙醇酸低聚物组分加入高沸点极性有机溶剂而获得的混合物进行解聚; 和从共馏出物收集乙交酯的步骤3。
    • 10. 发明申请
    • PROBE AND CANTILEVER
    • 探测器和CANTILEVER
    • US20090038382A1
    • 2009-02-12
    • US12089349
    • 2006-10-06
    • Kouji KoyamaToshiro KotakiKazuhiko Sunagawa
    • Kouji KoyamaToshiro KotakiKazuhiko Sunagawa
    • G12B21/02
    • G01Q60/38G01Q70/10
    • [Object of the Invention] To provide a probe 1 for use in a cantilever 2 of an scanning probe microscope (SPM) manufacturable in a simple manufacturing process and usable while allowing full use of the properties of single-crystalline material and a cantilever 2 using that probe.[Solution] A probe 1 disposed at the tip of beam part 2a of a cantilever 2 used for an SPM, wherein the probe 1 comprises a needle-like part 1a having a length of not less than 10 μm or and a flat plate part 1b having a face contacting a beam part of the cantilever, the needle-like part 1a and the flat plate part 1b are integrally formed with a single-crystalline material, and at least one side face of the flat plate part 1b contains a flat surface 1c in order to indicate the crystal orientation of the single-crystalline material.
    • 本发明的目的在于提供一种用于可在简单的制造工艺中制造的扫描探针显微镜(SPM)的悬臂2中的探针1,并且可以充分利用单晶材料和悬臂梁2的性质使用 那个探头。 [解决方案]设置在用于SPM的悬臂2的梁部2a的前端的探针1,其中探针1包括长度不小于10um的针状部分1a和平板部分1b 具有与悬臂的梁部接触的面,针状部1a和平板部1b与单晶材料一体形成,平板部1b的至少一个侧面包含平坦面1c 以表示单晶材料的晶体取向。