ATE466897T1 - Kontinuierliches verfahren zur herstellung von lactid und lactid polymeren - Google Patents

Kontinuierliches verfahren zur herstellung von lactid und lactid polymeren

Info

Publication number
ATE466897T1
ATE466897T1 AT98203427T AT98203427T ATE466897T1 AT E466897 T1 ATE466897 T1 AT E466897T1 AT 98203427 T AT98203427 T AT 98203427T AT 98203427 T AT98203427 T AT 98203427T AT E466897 T1 ATE466897 T1 AT E466897T1
Authority
AT
Austria
Prior art keywords
lactide
mixture
crude
continuous process
producing
Prior art date
Application number
AT98203427T
Other languages
English (en)
Inventor
Patrick R Gruber
Eric S Hall
Jeffrey J Kolstad
Matthew Lee Iwen
Richard D Benson
Ronald L Borchardt
Original Assignee
Cargill Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27542241&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE466897(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US07/825,059 external-priority patent/US5142023A/en
Priority claimed from US07/926,901 external-priority patent/US5258488A/en
Priority claimed from US07/927,149 external-priority patent/US5247058A/en
Priority claimed from US07/935,566 external-priority patent/US5247059A/en
Application filed by Cargill Inc filed Critical Cargill Inc
Application granted granted Critical
Publication of ATE466897T1 publication Critical patent/ATE466897T1/de

Links

Classifications

    • 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
    • C08G63/78—Preparation processes
    • 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
AT98203427T 1992-01-24 1993-01-22 Kontinuierliches verfahren zur herstellung von lactid und lactid polymeren ATE466897T1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US07/825,059 US5142023A (en) 1992-01-24 1992-01-24 Continuous process for manufacture of lactide polymers with controlled optical purity
US07/926,901 US5258488A (en) 1992-01-24 1992-08-07 Continuous process for manufacture of lactide polymers with controlled optical purity
US07/927,149 US5247058A (en) 1992-01-24 1992-08-07 Continuous process for manufacture of lactide polymers with controlled optical purity
US07/935,566 US5247059A (en) 1992-01-24 1992-08-24 Continuous process for the manufacture of a purified lactide from esters of lactic acid
US07/935,059 US5274073A (en) 1992-01-24 1992-08-24 Continuous process for manufacture of a purified lactide

Publications (1)

Publication Number Publication Date
ATE466897T1 true ATE466897T1 (de) 2010-05-15

Family

ID=27542241

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98203427T ATE466897T1 (de) 1992-01-24 1993-01-22 Kontinuierliches verfahren zur herstellung von lactid und lactid polymeren

Country Status (14)

Country Link
EP (2) EP0623153A1 (de)
JP (1) JP3258324B2 (de)
KR (1) KR100261850B1 (de)
AT (1) ATE466897T1 (de)
AU (1) AU677174B2 (de)
BR (1) BR9305788A (de)
CA (1) CA2128509C (de)
DE (1) DE69334330D1 (de)
ES (1) ES2345307T3 (de)
FI (1) FI113661B (de)
MX (1) MX9300333A (de)
NO (1) NO309530B1 (de)
NZ (1) NZ249033A (de)
WO (1) WO1993015127A1 (de)

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FI943487L (fi) 1994-09-21
CA2128509C (en) 2006-09-19
EP0623153A1 (de) 1994-11-09
MX9300333A (es) 1993-07-01
ES2345307T3 (es) 2010-09-20
NO309530B1 (no) 2001-02-12
FI113661B (fi) 2004-05-31
AU677174B2 (en) 1997-04-17
AU3482193A (en) 1993-09-01
EP0893462B1 (de) 2010-05-05
FI943487A0 (fi) 1994-07-22
NZ249033A (en) 1996-05-28
JPH07503490A (ja) 1995-04-13
KR100261850B1 (ko) 2000-08-01
WO1993015127A1 (en) 1993-08-05
JP3258324B2 (ja) 2002-02-18
NO942728D0 (no) 1994-07-21
CA2128509A1 (en) 1993-08-05
BR9305788A (pt) 1997-02-18
DE69334330D1 (de) 2010-06-17
EP0893462A2 (de) 1999-01-27
EP0893462A3 (de) 1999-10-20
NO942728L (no) 1994-09-23

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