ES2060862T3 - Procedimiento para la preparacion de d,l-lactida. - Google Patents

Procedimiento para la preparacion de d,l-lactida.

Info

Publication number
ES2060862T3
ES2060862T3 ES90109746T ES90109746T ES2060862T3 ES 2060862 T3 ES2060862 T3 ES 2060862T3 ES 90109746 T ES90109746 T ES 90109746T ES 90109746 T ES90109746 T ES 90109746T ES 2060862 T3 ES2060862 T3 ES 2060862T3
Authority
ES
Spain
Prior art keywords
preparation
lactida
procedure
lactide
relates
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES90109746T
Other languages
English (en)
Inventor
Joachim Dr Dipl-Chem Hess
Klaus Robert Dr Dipl-In Muller
Manfred Dr Dipl-Chem Muller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boehringer Ingelheim GmbH
Original Assignee
Boehringer Ingelheim GmbH
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 GmbH filed Critical Boehringer Ingelheim GmbH
Application granted granted Critical
Publication of ES2060862T3 publication Critical patent/ES2060862T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)

Abstract

EL INVENTO SE REFIERE A UN PROCEDIMIENTO MEJORADO PARA REPRESENTAR LACTIDAS D,L EMPLEABLES DIRECTAMENTE EN REACCIONES DE POLIMERIZACION.
ES90109746T 1989-05-26 1990-05-22 Procedimiento para la preparacion de d,l-lactida. Expired - Lifetime ES2060862T3 (es)

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
ES2060862T3 true ES2060862T3 (es) 1994-12-01

Family

ID=6381450

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90109746T Expired - Lifetime ES2060862T3 (es) 1989-05-26 1990-05-22 Procedimiento para la preparacion de d,l-lactida.

Country Status (7)

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

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005067A (en) 1992-01-24 1999-12-21 Cargill Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US5258488A (en) * 1992-01-24 1993-11-02 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6326458B1 (en) 1992-01-24 2001-12-04 Cargill, Inc. Continuous process for the manufacture of lactide and lactide polymers
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
US5247058A (en) * 1992-01-24 1993-09-21 Cargill, Incorporated Continuous process for manufacture of lactide polymers with controlled optical purity
US6005068A (en) * 1992-10-02 1999-12-21 Cargill Incorporated Melt-stable amorphous lactide polymer film and process for manufacture thereof
ATE173520T1 (de) * 1992-10-02 1998-12-15 Cargill Inc Papier mit einer beschichtung aus schmelzstabilem polymer und dessen verfahren zur herstellung
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
WO1994008078A1 (en) * 1992-10-02 1994-04-14 Cargill, Incorporated A melt-stable lactide polymer fabric and process for manufacture thereof
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
CA2670934C (en) * 2006-11-28 2016-01-12 Purac Biochem Bv Stable lactide particles
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 (es) *
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
US5011946A (en) 1991-04-30
JPH0317077A (ja) 1991-01-25
JP2863603B2 (ja) 1999-03-03
ATE97896T1 (de) 1993-12-15
EP0399485B1 (de) 1993-12-01
EP0399485A1 (de) 1990-11-28
DE3917178A1 (de) 1990-11-29
DK0399485T3 (da) 1994-01-17
DE59003654D1 (de) 1994-01-13

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