TW341569B - Preparation process and purification process of dimeric cyclic ester of α-hydroxycarboxylic acid - Google Patents

Preparation process and purification process of dimeric cyclic ester of α-hydroxycarboxylic acid

Info

Publication number
TW341569B
TW341569B TW086100909A TW86100909A TW341569B TW 341569 B TW341569 B TW 341569B TW 086100909 A TW086100909 A TW 086100909A TW 86100909 A TW86100909 A TW 86100909A TW 341569 B TW341569 B TW 341569B
Authority
TW
Taiwan
Prior art keywords
oligomer
hydroxycarboxylic acid
cyclic ester
dimeric cyclic
depolymerization
Prior art date
Application number
TW086100909A
Other languages
English (en)
Chinese (zh)
Inventor
Yoshiya Shiiki
Shinmei Kawakami
Original Assignee
Kureha Chemical Ind Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kureha Chemical Ind Co Ltd filed Critical Kureha Chemical Ind Co Ltd
Application granted granted Critical
Publication of TW341569B publication Critical patent/TW341569B/zh

Links

Classifications

    • 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

Landscapes

  • 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)
TW086100909A 1996-02-09 1997-01-28 Preparation process and purification process of dimeric cyclic ester of α-hydroxycarboxylic acid TW341569B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4800096 1996-02-09
JP11313996 1996-04-10

Publications (1)

Publication Number Publication Date
TW341569B true TW341569B (en) 1998-10-01

Family

ID=26388215

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086100909A TW341569B (en) 1996-02-09 1997-01-28 Preparation process and purification process of dimeric cyclic ester of α-hydroxycarboxylic acid

Country Status (5)

Country Link
US (1) US5830991A (cg-RX-API-DMAC10.html)
EP (1) EP0789023A2 (cg-RX-API-DMAC10.html)
JP (1) JP4871923B2 (cg-RX-API-DMAC10.html)
KR (1) KR100218850B1 (cg-RX-API-DMAC10.html)
TW (1) TW341569B (cg-RX-API-DMAC10.html)

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Publication number Priority date Publication date Assignee Title
DE69735206T2 (de) 1996-07-19 2006-09-21 Kureha Corp. Gasundurchlässige Verbundfolien
CN1070773C (zh) 1996-09-13 2001-09-12 吴羽化学工业株式会社 具有气体屏障特性的多层中空容器及其制法
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
US6891048B2 (en) * 2001-03-06 2005-05-10 Kureha Kagaku Kogyo Kk Glycolide production process, and glycolic acid composition
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
AU2003293148A1 (en) * 2002-12-23 2004-07-29 Dow Global Technologies Inc. Method of smc molding
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
JP5297455B2 (ja) 2008-06-20 2013-09-25 旭化成ケミカルズ株式会社 α−ヒドロキシ酸の製造方法
EP2377858B1 (en) * 2008-12-26 2014-04-30 Kureha Corporation Method for producing glycolide
BR112012015184B1 (pt) 2009-12-21 2021-11-23 Evonik Corporation Processo para preparar um éster cíclico e um alfa- hidroxiácido oligomérico
US8722908B2 (en) 2010-01-19 2014-05-13 Kureha Corporation Method for producing glycolide
US8911978B2 (en) 2010-07-02 2014-12-16 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
CN104619690B (zh) 2012-11-22 2016-10-12 株式会社吴羽 具备通过气液逆流接触而进行的精馏工序的乙交酯的制造方法、以及粗乙交酯的精炼方法
EP2980084B1 (en) 2013-03-26 2018-12-05 Kureha Corporation Method for producing glycolide
EP2980083B1 (en) 2013-03-27 2018-11-28 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
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)

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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-DMAC10.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
JP2008297307A (ja) 2008-12-11
EP0789023A3 (cg-RX-API-DMAC10.html) 1997-09-10
KR970061886A (ko) 1997-09-12
EP0789023A2 (en) 1997-08-13
US5830991A (en) 1998-11-03
JP4871923B2 (ja) 2012-02-08
KR100218850B1 (ko) 1999-09-01

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