JP4871923B2 - α−ヒドロキシカルボン酸２量体環状エステルの精製方法 - Google Patents

α−ヒドロキシカルボン酸２量体環状エステルの精製方法 Download PDF

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Publication number
JP4871923B2
JP4871923B2 JP2008178152A JP2008178152A JP4871923B2 JP 4871923 B2 JP4871923 B2 JP 4871923B2 JP 2008178152 A JP2008178152 A JP 2008178152A JP 2008178152 A JP2008178152 A JP 2008178152A JP 4871923 B2 JP4871923 B2 JP 4871923B2
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JP
Japan
Prior art keywords
cyclic ester
solvent
oligomer
dimer cyclic
hydroxycarboxylic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP2008178152A
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English (en)
Japanese (ja)
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JP2008297307A (ja
Inventor
善彌 椎木
進盟 川上
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Kureha Corp
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Kureha Corp
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Priority to JP2008178152A priority Critical patent/JP4871923B2/ja
Publication of JP2008297307A publication Critical patent/JP2008297307A/ja
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Publication of JP4871923B2 publication Critical patent/JP4871923B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
JP2008178152A 1996-02-09 2008-07-08 α−ヒドロキシカルボン酸２量体環状エステルの精製方法 Expired - Fee Related JP4871923B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008178152A JP4871923B2 (ja) 1996-02-09 2008-07-08 α−ヒドロキシカルボン酸２量体環状エステルの精製方法

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP1996048000 1996-02-09
JP4800096 1996-02-09
JP1996113139 1996-04-10
JP11313996 1996-04-10
JP2008178152A JP4871923B2 (ja) 1996-02-09 2008-07-08 α−ヒドロキシカルボン酸２量体環状エステルの精製方法

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP03840497A Division JP4171083B2 (ja) 1996-02-09 1997-02-06 α−ヒドロキシカルボン酸２量体環状エステルの製造方法

Publications (2)

Publication Number Publication Date
JP2008297307A JP2008297307A (ja) 2008-12-11
JP4871923B2 true JP4871923B2 (ja) 2012-02-08

Family

ID=26388215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008178152A Expired - Fee Related JP4871923B2 (ja) 1996-02-09 2008-07-08 α−ヒドロキシカルボン酸２量体環状エステルの精製方法

Country Status (5)

Country Link
US (1) US5830991A (enExample)
EP (1) EP0789023A2 (enExample)
JP (1) JP4871923B2 (enExample)
KR (1) KR100218850B1 (enExample)
TW (1) TW341569B (enExample)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69735206T2 (de) 1996-07-19 2006-09-21 Kureha Corp. Gasundurchlässige Verbundfolien
US6673403B1 (en) 1996-09-13 2004-01-06 Kureha Kagaku Kogyo K.K. Gas-barrier, multi-layer hollow container
JP4565208B2 (ja) 2000-03-31 2010-10-20 株式会社クレハ グリコリドの精製方法
ATE347548T1 (de) * 2000-08-11 2006-12-15 Kureha Corp Verfahren zur herstellung zyklischer ester und verfahren zu ihrer reinigung
ES2246385T3 (es) * 2001-03-06 2006-02-16 Kureha Kagaku Kogyo Kabushiki Kaisha Procedimiento para la produccion de glicolido y composicion de acido glicolico.
EP1377566B1 (en) * 2001-04-12 2004-09-22 Kureha Chemical Industry Co., Ltd. Glycolide production process, and glycolic acid oligomer for glycolide production
JP2004043682A (ja) * 2002-07-12 2004-02-12 Nippon Shokubai Co Ltd ポリグリコール酸の製造方法
JP2007521341A (ja) * 2002-12-23 2007-08-02 ダウ グローバル テクノロジーズ インコーポレイティド Ｓｍｃ成形方法
US20040231845A1 (en) 2003-05-15 2004-11-25 Cooke Claude E. Applications of degradable polymers in wells
US20090107684A1 (en) 2007-10-31 2009-04-30 Cooke Jr Claude E Applications of degradable polymers for delayed mechanical changes in wells
EP1717236A1 (en) * 2005-04-28 2006-11-02 Purac Biochem B.V. Method for purifying glycolide
JP5235311B2 (ja) * 2007-02-20 2013-07-10 株式会社クレハ 環状エステルの精製方法
WO2009153886A1 (ja) 2008-06-20 2009-12-23 旭化成ケミカルズ株式会社 α－ヒドロキシ酸の製造方法
US8722907B2 (en) * 2008-12-26 2014-05-13 Kureha Corporation Production process of glycolide
CA2784995C (en) 2009-12-21 2018-07-03 Evonik Degussa Corporation Process for preparing cyclic esters comprising unsaturated functional groups and polyesters prepared from same
JP5813516B2 (ja) 2010-01-19 2015-11-17 株式会社クレハ グリコリドの製造方法
WO2012001003A1 (en) 2010-07-02 2012-01-05 Metabolic Explorer Method for the preparation of hydroxy acids
JP2012097224A (ja) * 2010-11-04 2012-05-24 Hitachi Plant Technologies Ltd ポリヒドロキシカルボン酸の製造装置および製造方法
WO2014080876A1 (ja) 2012-11-22 2014-05-30 株式会社クレハ 気液の向流接触による精留工程を備えるグリコリドの製造方法、及び、粗グリコリドの精製方法
WO2014157140A1 (ja) 2013-03-26 2014-10-02 株式会社クレハ グリコリドの製造方法
CN104981465B (zh) 2013-03-27 2017-10-20 株式会社吴羽 乙交酯的制备方法
JP6144562B2 (ja) 2013-07-22 2017-06-07 株式会社クレハ 脂肪族ポリエステルの製造方法
CN107286126A (zh) * 2016-04-13 2017-10-24 中国石油化工股份有限公司 1,4-二氧杂环-2,5-己二酮的制备方法
CN107286127A (zh) * 2016-04-13 2017-10-24 中国石油化工股份有限公司 低酸含量1,4-二氧杂环-2,5-己二酮的制备方法
CN107868076A (zh) * 2016-09-26 2018-04-03 中国石油化工股份有限公司 低杂质含量乙交酯的制备
US11046665B2 (en) 2017-01-24 2021-06-29 Kureha Corporation Method for producing α-hydroxycarboxylic acid dimeric cyclic ester
JP6785165B2 (ja) 2017-01-27 2020-11-18 株式会社クレハ 成形体の製造方法
CN111699179B (zh) * 2018-03-07 2021-09-17 株式会社吴羽 环状酯的制造方法
CN112469761B (zh) 2018-10-29 2023-05-26 上海浦景化工技术股份有限公司 聚乙醇酸和乙交酯的受控生产
CN113603671A (zh) * 2021-08-13 2021-11-05 山东谷雨春生物科技有限公司 一种提高交酯收率的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668162A (en) * 1952-03-20 1954-02-02 Du Pont Preparation of high molecular weight polyhydroxyacetic ester
US4727163A (en) * 1985-07-11 1988-02-23 E. I. Du Pont De Nemours And Company Process for preparing highly pure cyclic esters
US4835293A (en) * 1987-02-24 1989-05-30 E. I. Du Pont De Nemours And Company Atmospheric pressure process for preparing pure cyclic esters
US5326887A (en) * 1991-02-27 1994-07-05 E. I. Du Pont De Nemours And Company Process for the preparation of 1,4-dioxane-2,5-diones
TW211577B (enExample) * 1991-07-24 1993-08-21 Du Pont
US5420304A (en) * 1992-03-19 1995-05-30 Biopak Technology, Ltd. Method to produce cyclic esters
FR2692263B1 (fr) * 1992-06-15 1994-09-23 Flamel Tech Sa Procédé de préparation d'esters cycliques d'acides-alpha-hydroxycarboxyliques.
US5342969A (en) * 1993-03-03 1994-08-30 E. I. Du Pont De Nemours And Company Recovery of hydroxycarboxylic acid values from poly(hydroxycarboxylic acids)

Also Published As

Publication number Publication date
KR970061886A (ko) 1997-09-12
EP0789023A3 (enExample) 1997-09-10
TW341569B (en) 1998-10-01
KR100218850B1 (ko) 1999-09-01
EP0789023A2 (en) 1997-08-13
US5830991A (en) 1998-11-03
JP2008297307A (ja) 2008-12-11

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