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    Method for purification of cyclic ester
    2.
    发明授权
    Method for purification of cyclic ester 有权
    环酯的纯化方法

    公开(公告)号：US08404868B2

    公开(公告)日：2013-03-26

    申请号：US12449669

    申请日：2008-01-28

    申请人： Kazuyuki Yamane ,  Tomohiro Hoshi ,  Tomoyuki Ogawa

    发明人： Kazuyuki Yamane ,  Tomohiro Hoshi ,  Tomoyuki Ogawa

    IPC分类号： C07D321/00 ,  C07D319/00

    CPC分类号： C07D319/12

    摘要： A method of purifying a cyclic ester, comprising: mixing a co-distillated liquid comprising a cyclic ester produced by heating depolymerization of a hydroxycarboxylic acid oligomer in the presence of a depolymerization solvent and the depolymerization solvent with an organic solvent for washing which is mutually soluble with the depolymerization solvent and has a lower boiling point than the cyclic ester; subjecting the resultant mixture liquid to liquid-liquid separation into an organic solvent phase containing the depolymerization solvent and a cyclic ester phase containing the organic solvent; and then evaporating the organic solvent from the cyclic ester phase containing the organic solvent to recover the cyclic ester containing a reduced amount of the depolymerization solvent. As a result, purified cyclic ester is recovered at high heat efficiency, purification efficiency and operation efficiency, from the co-distillate liquid containing the depolymerization solvent and the cyclic ester from the depolymerization system for thermal decomposition of the hydroxycarboxylic acid oligomer in the presence of the depolymerization solvent.

    摘要翻译： 一种环状酯的提纯方法，其特征在于，包括：在解聚溶剂和解聚溶剂的存在下，通过将羟基羧酸低聚物的解聚反应与溶解有机溶剂进行溶解而得到的包含环状酯的共蒸馏液， 具有解聚溶剂并且具有比环酯低的沸点; 将所得混合液进行液 - 液分离成含有解聚溶剂的有机溶剂相和含有有机溶剂的环状酯相; 然后从含有机溶剂的环状酯相中蒸发有机溶剂，回收含有减少量的解聚溶剂的环状酯。 结果，从含有解聚溶剂的共馏出液和来自用于羟基羧酸低聚物的热分解的解聚体系的环状酯在高热效率，净化效率和操作效率下，在存在 解聚溶剂。

    AROMATIC POLYESTER RESIN COMPOSITION
    6.
    发明申请
    AROMATIC POLYESTER RESIN COMPOSITION 有权
    芳香聚酯树脂组合物

    公开(公告)号：US20110105699A1

    公开(公告)日：2011-05-05

    申请号：US12449093

    申请日：2008-01-22

    申请人： Hiroyuki Sato ,  Kazuyuki Yamane ,  Yuki Hokari ,  Fuminori Kobayashi

    发明人： Hiroyuki Sato ,  Kazuyuki Yamane ,  Yuki Hokari ,  Fuminori Kobayashi

    IPC分类号： C08L67/02 ,  C08L67/04

    CPC分类号： C08L67/02 ,  C08K5/0091 ,  C08K2201/008 ,  C08L67/04 ,  C08L2666/18

    摘要： An aromatic polyester resin composition, including: a melt-kneaded product of 99-70 wt. parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the aromatic polyester resin is an aromatic polyester resin polymerized with a germanium compound (catalyst), and the polyglycolic acid resin is a polyglycolic acid resin obtained by ring-opening polymerization of glycolide. As a result, gas generation during the melt-processing of a composition obtained by adding a relatively small amount of polyglycolic acid resin to an aromatic polyester resin is effectively suppressed to provide an aromatic polyester resin composition with a good gas-barrier property.

    摘要翻译： 一种芳族聚酯树脂组合物，包括：99-70重量份的熔融捏合产物， 部分芳族聚酯树脂和1-30wt。 聚乙醇酸树脂的部分（与芳族聚酯树脂一起共提供100重量份），其中芳族聚酯树脂是用锗化合物（催化剂）聚合的芳族聚酯树脂，聚乙醇酸树脂是聚乙醇酸 由乙交酯开环聚合得到的酸性树脂。 结果，通过将相对少量的聚乙醇酸树脂加入到芳族聚酯树脂中而获得的组合物进行熔融加工时的气体产生被有效地抑制，从而提供具有良好阻气性的芳族聚酯树脂组合物。

    METHOD FOR PRODUCING POLYMER MOLDED BODY
    7.
    发明申请
    METHOD FOR PRODUCING POLYMER MOLDED BODY 审中-公开
    生产聚合物成型体的方法

    公开(公告)号：US20110008578A1

    公开(公告)日：2011-01-13

    申请号：US12920800

    申请日：2009-01-19

    申请人： Kazuyuki Yamane ,  Takeshi Saitou ,  Yuki Hokari

    发明人： Kazuyuki Yamane ,  Takeshi Saitou ,  Yuki Hokari

    IPC分类号： B32B3/30

    CPC分类号： C08J7/123 ,  C08J2367/04 ,  Y10T428/24479

    摘要： A method for producing a polymer molded body, comprising a step of forming a recess in a polymer structure containing a polyglycolic acid by dry etching the polymer structure at a vacuum degree of 50 mTorr or less, an output of 1-6 W and a current of 3 mA or less.

    摘要翻译： 一种聚合物成型体的制造方法，其特征在于，在真空度为50mTorr以下，干燥蚀刻聚合物结构体的情况下，在含有聚乙醇酸的聚合物结构中形成凹部，1-6W的输出和电流 为3mA以下。

    LOW MELT VISCOSITY POLYGLYCOLIC ACID, PRODUCTION PROCESS THEREOF, AND USE OF LOW MELT VISCOSITY POLYGLYCOLIC ACID
    8.
    发明申请
    LOW MELT VISCOSITY POLYGLYCOLIC ACID, PRODUCTION PROCESS THEREOF, AND USE OF LOW MELT VISCOSITY POLYGLYCOLIC ACID 审中-公开
    低熔点粘度聚乙烯酸，其生产工艺及低熔点粘度聚乙烯酸的使用

    公开(公告)号：US20100184891A1

    公开(公告)日：2010-07-22

    申请号：US12677537

    申请日：2008-09-08

    申请人： Fumio Akutsu ,  Kazuyuki Yamane ,  Nanako Kuruhara

    发明人： Fumio Akutsu ,  Kazuyuki Yamane ,  Nanako Kuruhara

    IPC分类号： C08K5/52 ,  C08K5/3472 ,  C08K5/24 ,  C08K3/26 ,  C08G63/06

    CPC分类号： C08G63/88 ,  C08G63/08 ,  C08K3/26 ,  C08K5/49

    摘要： A low melt viscosity polyglycolic acid having a melt viscosity of at most 100 Pa·s as measured at a temperature higher by 10° C. than the melting point of the polyglycolic acid and a shear rate of 122 sec−1, a temperature at 3%-weight loss on heating of at least 280° C. and a water content of at most 500 ppm, and being in a solid state at a temperature of 20±15° C., and a production process of the low melt viscosity polyglycolic acid including a water vapor absorption step and a heat treatment step for a high melt viscosity polyglycolic acid being in a solid state.

    摘要翻译： 在比聚乙醇酸的熔点高达10℃的温度和122秒-1的剪切速率，3℃的温度下测定的熔体粘度为100Pa·s以下的熔融粘度低聚乙醇酸 在加热至少280℃，水含量至多为500ppm时的％重量损失，并且在20±15℃的温度下处于固态，并且制备低熔体粘度聚乙醇酸 包括水蒸汽吸收步骤的酸和用于固体状态的高熔融粘度聚乙醇酸的热处理步骤。