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 (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
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
JP4842497B2 (ja) * 2000-08-11 2011-12-21 株式会社クレハ 環状エステルの製造方法及び精製方法
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
KR100895603B1 (ko) * 2001-04-12 2009-05-06 가부시끼가이샤 구레하 글리콜리드 제조 방법, 및 글리콜리드 제조용 글리콜산 올리고머
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
WO2004060640A1 (en) * 2002-12-23 2004-07-22 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
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
JP5584628B2 (ja) * 2008-12-26 2014-09-03 株式会社クレハ グリコリドの製造方法
CN103003260A (zh) 2009-12-21 2013-03-27 赢创德固赛有限公司 用于制备包含不饱和官能团的环酯的方法和由其制备的聚酯
US8722908B2 (en) 2010-01-19 2014-05-13 Kureha Corporation Method for producing glycolide
EP2588598B1 (en) 2010-07-02 2016-03-09 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
EP2924030B1 (en) 2012-11-22 2020-01-01 Kureha Corporation Method for producing glycolide, which is provided with rectification step by means of gas-liquid countercurrent contact, and method for purifying crude glycolide
JP6230597B2 (ja) 2013-03-26 2017-11-15 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
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
JP6751164B2 (ja) 2017-01-24 2020-09-02 株式会社クレハ 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
JP6785165B2 (ja) 2017-01-27 2020-11-18 株式会社クレハ 成形体の製造方法
EP3763708A4 (en) * 2018-03-07 2021-05-05 Kureha Corporation METHOD OF MANUFACTURING CYCLIC ETHER
JP2022506549A (ja) * 2018-10-29 2022-01-17 プージン ケミカル インダストリー カンパニー リミテッド ポリグリコール酸とグリコリドの制御された製造
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
JP2008297307A (ja) 2008-12-11
KR100218850B1 (ko) 1999-09-01
JP4871923B2 (ja) 2012-02-08
EP0789023A2 (en) 1997-08-13
US5830991A (en) 1998-11-03
EP0789023A3 (enExample) 1997-09-10

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