ATE302768T1 - Glykolid herstellungsverfahren, und glykolsaüre zusammenstellung - Google Patents

Glykolid herstellungsverfahren, und glykolsaüre zusammenstellung

Info

Publication number
ATE302768T1
ATE302768T1 AT02701729T AT02701729T ATE302768T1 AT E302768 T1 ATE302768 T1 AT E302768T1 AT 02701729 T AT02701729 T AT 02701729T AT 02701729 T AT02701729 T AT 02701729T AT E302768 T1 ATE302768 T1 AT E302768T1
Authority
AT
Austria
Prior art keywords
glycolic acid
depolymerization
reaction system
depolymerization reaction
production method
Prior art date
Application number
AT02701729T
Other languages
English (en)
Inventor
K Yamane
Y 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 ATE302768T1 publication Critical patent/ATE302768T1/de

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides

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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
AT02701729T 2001-03-06 2002-03-05 Glykolid herstellungsverfahren, und glykolsaüre zusammenstellung ATE302768T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001062436 2001-03-06
PCT/JP2002/002025 WO2002070508A2 (en) 2001-03-06 2002-03-05 Glycolide production process, and glycolic acid composition

Publications (1)

Publication Number Publication Date
ATE302768T1 true ATE302768T1 (de) 2005-09-15

Family

ID=18921572

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02701729T ATE302768T1 (de) 2001-03-06 2002-03-05 Glykolid herstellungsverfahren, und glykolsaüre zusammenstellung

Country Status (11)

Country Link
US (1) US6891048B2 (de)
EP (1) EP1366037B1 (de)
JP (1) JP4317690B2 (de)
KR (1) KR100851267B1 (de)
CN (1) CN1288144C (de)
AT (1) ATE302768T1 (de)
AU (1) AU2002234968A1 (de)
DE (1) DE60205725T2 (de)
ES (1) ES2246385T3 (de)
TW (1) TWI224100B (de)
WO (1) WO2002070508A2 (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4970947B2 (ja) * 2004-09-08 2012-07-11 株式会社クレハ ポリグリコール酸樹脂系多層シート
KR101274369B1 (ko) 2008-06-20 2013-06-13 아사히 가세이 케미칼즈 가부시키가이샤 α-히드록시산의 제조 방법
US8079413B2 (en) 2008-12-23 2011-12-20 W. Lynn Frazier Bottom set downhole plug
US8899317B2 (en) 2008-12-23 2014-12-02 W. Lynn Frazier Decomposable pumpdown ball for downhole plugs
WO2010122881A1 (ja) * 2009-04-20 2010-10-28 株式会社クレハ 固体状ポリグリコール酸系樹脂組成物の製造方法
US9109428B2 (en) 2009-04-21 2015-08-18 W. Lynn Frazier Configurable bridge plugs and methods for using same
US9127527B2 (en) 2009-04-21 2015-09-08 W. Lynn Frazier Decomposable impediments for downhole tools and methods for using same
US9181772B2 (en) 2009-04-21 2015-11-10 W. Lynn Frazier Decomposable impediments for downhole plugs
US9562415B2 (en) 2009-04-21 2017-02-07 Magnum Oil Tools International, Ltd. Configurable inserts for downhole plugs
US9163477B2 (en) 2009-04-21 2015-10-20 W. Lynn Frazier Configurable downhole tools and methods for using same
US9062522B2 (en) 2009-04-21 2015-06-23 W. Lynn Frazier Configurable inserts for downhole plugs
CN101851227B (zh) * 2010-06-13 2012-11-14 杭州铭众生物科技有限公司 基于回收的聚羟基乙酸制备乙交酯的方法
RU2512306C1 (ru) * 2012-11-27 2014-04-10 Федеральное государственное бюджетное образовательно учреждение высшего профессионального образования "Национальный исследовательский Томский государственный университет" Способ получения гликолида
ES2803507T3 (es) * 2013-03-15 2021-01-27 Croda Inc Alquil éteres de alcoholes grasos alcoxilados y productos que los contienen
JP6128978B2 (ja) 2013-06-14 2017-05-17 パナソニック株式会社 燃料電池システムおよび燃料電池システム用モジュール
CN105315152A (zh) * 2014-07-24 2016-02-10 中国石油化工股份有限公司 聚乙醇酸低聚物的制备方法
CN104892564B (zh) * 2015-06-04 2017-07-07 中国科学院长春应用化学研究所 一种高分子量聚乳酸制备丙交酯的方法
CN110072856B (zh) * 2017-01-24 2022-03-15 株式会社吴羽 α-羟基羧酸二聚物环状酯的制造方法
KR102589022B1 (ko) * 2017-12-25 2023-10-17 다우 글로벌 테크놀로지스 엘엘씨 개질된 유용성 폴리알킬렌 글리콜
CN111757873A (zh) * 2018-03-20 2020-10-09 株式会社吴羽 乙交酯的制造方法
JP7064913B2 (ja) 2018-03-20 2022-05-11 株式会社クレハ グリコリドの製造方法
JP7039345B2 (ja) 2018-03-20 2022-03-22 株式会社クレハ グリコリドの製造方法
WO2020087217A1 (en) * 2018-10-29 2020-05-07 Pujing Chemical Industry Co., Ltd Glycolide production from methyl polyglycolate
AU2018447433A1 (en) * 2018-10-29 2021-05-27 Pujing Chemical Industry Co., Ltd Glycolide production with low solid residue
CN112707885A (zh) * 2019-10-25 2021-04-27 中国石油化工股份有限公司 从解聚反应残渣中回收环状酯的方法
CN113717362B (zh) * 2021-04-30 2022-12-06 南京威尔药业科技有限公司 一种可注射用丙交酯乙交酯共聚物的悬浮聚合制备方法
CN114478472B (zh) * 2022-02-23 2024-02-13 中国科学院长春应用化学研究所 一种乙交酯的制备方法
CN115073415A (zh) * 2022-05-31 2022-09-20 江苏景宏新材料科技有限公司 一种制备高纯度乙交酯的方法

Family Cites Families (6)

* 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
US5023349A (en) 1990-05-08 1991-06-11 E. I. Du Pont De Nemours And Company Continuous process for rapid conversion of oligomers to cyclic esters
FR2692263B1 (fr) 1992-06-15 1994-09-23 Flamel Tech Sa Procédé de préparation d'esters cycliques d'acides-alpha-hydroxycarboxyliques.
US5830991A (en) * 1996-02-09 1998-11-03 Kureha Kagaku Kagyo Kk Preparation process and purification process of dimeric cyclic ester of hydroxycarboxylic acid

Also Published As

Publication number Publication date
EP1366037B1 (de) 2005-08-24
JP2004519485A (ja) 2004-07-02
KR100851267B1 (ko) 2008-08-08
KR20040018338A (ko) 2004-03-03
DE60205725D1 (de) 2005-09-29
CN1288144C (zh) 2006-12-06
ES2246385T3 (es) 2006-02-16
EP1366037A2 (de) 2003-12-03
DE60205725T2 (de) 2006-05-18
US6891048B2 (en) 2005-05-10
WO2002070508A3 (en) 2002-12-19
CN1496359A (zh) 2004-05-12
AU2002234968A1 (en) 2002-09-19
US20040087805A1 (en) 2004-05-06
JP4317690B2 (ja) 2009-08-19
TWI224100B (en) 2004-11-21
WO2002070508A2 (en) 2002-09-12

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