DK0399485T3 - Forbedret fremgangsmåde til fremstilling af D, L-lactid - Google Patents

Forbedret fremgangsmåde til fremstilling af D, L-lactid

Info

Publication number
DK0399485T3
DK0399485T3 DK90109746.9T DK90109746T DK0399485T3 DK 0399485 T3 DK0399485 T3 DK 0399485T3 DK 90109746 T DK90109746 T DK 90109746T DK 0399485 T3 DK0399485 T3 DK 0399485T3
Authority
DK
Denmark
Prior art keywords
lactide
improved process
preparing
preparation
relates
Prior art date
Application number
DK90109746.9T
Other languages
English (en)
Inventor
Joachim Dr Dipl-Chem Hess
Klaus Robert Dr Dipl-I Mueller
Manfred Dr Dipl-Chem Mueller
Original Assignee
Boehringer Ingelheim Int
Boehringer Ingelheim Kg
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 Boehringer Ingelheim Int, Boehringer Ingelheim Kg filed Critical Boehringer Ingelheim Int
Application granted granted Critical
Publication of DK0399485T3 publication Critical patent/DK0399485T3/da

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)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
DK90109746.9T 1989-05-26 1990-05-22 Forbedret fremgangsmåde til fremstilling af D, L-lactid DK0399485T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3917178A DE3917178A1 (de) 1989-05-26 1989-05-26 Verbessertes verfahren zur herstellung von d,l-lactid

Publications (1)

Publication Number Publication Date
DK0399485T3 true DK0399485T3 (da) 1994-01-17

Family

ID=6381450

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90109746.9T DK0399485T3 (da) 1989-05-26 1990-05-22 Forbedret fremgangsmåde til fremstilling af D, L-lactid

Country Status (7)

Country Link
US (1) US5011946A (da)
EP (1) EP0399485B1 (da)
JP (1) JP2863603B2 (da)
AT (1) ATE97896T1 (da)
DE (2) DE3917178A1 (da)
DK (1) DK0399485T3 (da)
ES (1) ES2060862T3 (da)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142023A (en) * 1992-01-24 1992-08-25 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247059A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for the manufacture of a purified lactide from esters of lactic acid
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005067A (en) 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
JP3258326B2 (ja) * 1992-10-02 2002-02-18 カーギル， インコーポレイテッド 溶融安定性ラクチドポリマーをコーティングした紙とその製造方法
US6005068A (en) * 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
CA2124842C (en) * 1992-10-02 2003-07-15 Patrick R. Gruber A melt-stable lactide polymer fabric and process for manufacture thereof
JP3248595B2 (ja) 1993-02-04 2002-01-21 東洋紡績株式会社 脂肪族ポリエステルの製造法
JPH07165753A (ja) * 1993-12-08 1995-06-27 Musashino Kagaku Kenkyusho:Kk ラクチドの精製方法
US7723461B1 (en) 2005-12-22 2010-05-25 Tetramer Technologies, Llc Polymeric materials from renewable resources
RU2451695C2 (ru) * 2006-11-28 2012-05-27 ПУРАК Биокем БВ Стабильные частицы лактида
CN106995429B (zh) * 2017-05-22 2019-06-04 浙江海正生物材料股份有限公司 一种内消旋丙交酯的分离方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE261362C (da) *
US3597449A (en) * 1967-11-16 1971-08-03 American Cyanamid Co Stable glycolide and lactide composition
DE3632103A1 (de) * 1986-09-20 1988-03-24 Boehringer Ingelheim Kg Verfahren zur herstellung von lactid
DE3708915C2 (de) * 1987-03-19 1996-04-04 Boehringer Ingelheim Kg Verfahren zur Herstellung von Lactid
DE3781133T2 (de) * 1986-12-19 1993-06-24 Akzo Nv Herstellung von polymilchsaeure und copolymeren daraus.
DD261362A1 (de) * 1987-05-28 1988-10-26 Akad Wissenschaften Ddr Verfahren zur herstellung von polymerisationsfaehigen 1,4-dioxan-2,5-dionen
DE3820299A1 (de) * 1987-06-16 1988-12-29 Boehringer Ingelheim Kg Meso-lactid, verfahren zu seiner herstellung und daraus hergestellte polymere und copolymere

Also Published As

Publication number Publication date
DE3917178A1 (de) 1990-11-29
ATE97896T1 (de) 1993-12-15
EP0399485A1 (de) 1990-11-28
US5011946A (en) 1991-04-30
ES2060862T3 (es) 1994-12-01
EP0399485B1 (de) 1993-12-01
DE59003654D1 (de) 1994-01-13
JPH0317077A (ja) 1991-01-25
JP2863603B2 (ja) 1999-03-03

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