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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Japan
Prior art keywords
cyclic ester
solvent
oligomer
dimer cyclic
hydroxycarboxylic acid
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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
JP11313996 1996-04-10
JP1996113139 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 (cg-RX-API-DMAC7.html)
EP (1) EP0789023A2 (cg-RX-API-DMAC7.html)
JP (1) JP4871923B2 (cg-RX-API-DMAC7.html)
KR (1) KR100218850B1 (cg-RX-API-DMAC7.html)
TW (1) TW341569B (cg-RX-API-DMAC7.html)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6245437B1 (en) 1996-07-19 2001-06-12 Kureha Kagaku Kogyo K.K. Gas-barrier composite film
KR100451403B1 (ko) 1996-09-13 2004-10-06 구레하 가가쿠 고교 가부시키가이샤 가스 배리어성 다층 중공 용기
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
DE60125045T2 (de) * 2000-08-11 2007-07-05 Kureha Corporation Verfahren zur Herstellung eines cyclischen Esters durch Depolymerisation eines aliphatischen Polyesters und Verfahren zur Reinigung eines rohen cyclischen Esters
JP4317690B2 (ja) * 2001-03-06 2009-08-19 株式会社クレハ グリコリドの製造方法
CN1266146C (zh) * 2001-04-12 2006-07-26 株式会社吴羽 乙交酯生产方法以及用于生产乙交酯的乙醇酸低聚物
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
AU2003293148A1 (en) * 2002-12-23 2004-07-29 Dow Global Technologies Inc. Method of smc molding
US20090107684A1 (en) 2007-10-31 2009-04-30 Cooke Jr Claude E Applications of degradable polymers for delayed mechanical changes in wells
US20040231845A1 (en) 2003-05-15 2004-11-25 Cooke Claude E. Applications of degradable polymers 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
CN102066305B (zh) 2008-06-20 2015-11-25 旭化成化学株式会社 α-羟酸的制造方法
EP2377858B1 (en) * 2008-12-26 2014-04-30 Kureha Corporation Method for producing glycolide
JP6150522B2 (ja) 2009-12-21 2017-06-21 エボニック コーポレイションＥｖｏｎｉｋ Ｃｏｒｐｏｒａｔｉｏｎ 不飽和官能基を含む環状エステルを調製するための方法及びこれから調製されるポリエステル
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
US9643949B2 (en) 2013-03-27 2017-05-09 Kureha Corporation Method for producing glycolide
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
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
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
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
WO2019172361A1 (ja) * 2018-03-07 2019-09-12 株式会社クレハ 環状エステルの製造方法
WO2020087221A1 (en) * 2018-10-29 2020-05-07 Pujing Chemical Industry Co., Ltd Controlled production of polyglycolic acid and glycolide
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 (cg-RX-API-DMAC7.html) * 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
EP0789023A3 (cg-RX-API-DMAC7.html) 1997-09-10
EP0789023A2 (en) 1997-08-13
KR970061886A (ko) 1997-09-12
US5830991A (en) 1998-11-03
TW341569B (en) 1998-10-01
JP2008297307A (ja) 2008-12-11
KR100218850B1 (ko) 1999-09-01

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