FR1462616A - Procédé de purification des lactides - Google Patents

Procédé de purification des lactides

Info

Publication number
FR1462616A
FR1462616A FR44021A FR44021A FR1462616A FR 1462616 A FR1462616 A FR 1462616A FR 44021 A FR44021 A FR 44021A FR 44021 A FR44021 A FR 44021A FR 1462616 A FR1462616 A FR 1462616A
Authority
FR
France
Prior art keywords
purification process
lactide purification
lactide
purification
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
Application number
FR44021A
Other languages
English (en)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR1462616A publication Critical patent/FR1462616A/fr
Expired 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR44021A 1964-12-28 1965-12-28 Procédé de purification des lactides Expired FR1462616A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42170264A 1964-12-28 1964-12-28

Publications (1)

Publication Number Publication Date
FR1462616A true FR1462616A (fr) 1966-12-16

Family

ID=23671671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR44021A Expired FR1462616A (fr) 1964-12-28 1965-12-28 Procédé de purification des lactides

Country Status (6)

Country Link
BE (1) BE674355A (fr)
DE (1) DE1280838B (fr)
FR (1) FR1462616A (fr)
GB (1) GB1122229A (fr)
NL (1) NL6516979A (fr)
SE (1) SE322788B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701707A1 (fr) * 1993-02-17 1994-08-26 Du Pont Procédé pour la purification de lactide.

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339882A1 (fr) * 1988-04-27 1989-11-02 MITSUI TOATSU CHEMICALS, Inc. Procédé de production de lactide
US5319107A (en) * 1990-09-18 1994-06-07 Biopak Technology, Ltd. Method to produce cyclic esters
US5767222A (en) * 1988-08-08 1998-06-16 Chronopol, Inc. Degradable polydioxaneone-based materials
US5274127A (en) * 1990-09-18 1993-12-28 Biopak Technology, Ltd. Lactide production from dehydration of aqueous lactic acid feed
US5444113A (en) * 1988-08-08 1995-08-22 Ecopol, Llc End use applications of biodegradable polymers
US5332839A (en) * 1990-09-18 1994-07-26 Biopak Technology, Ltd. Catalytic production of lactide directly from lactic acid
US5675021A (en) * 1992-03-19 1997-10-07 Chronopol, Inc. Method to produce and purify cyclic esters
US5420304A (en) * 1992-03-19 1995-05-30 Biopak Technology, Ltd. Method to produce cyclic esters
US5686630A (en) * 1993-09-29 1997-11-11 Chronopol, Inc. Purifying cyclic esters by aqueous solvent extraction
JP2959375B2 (ja) * 1994-01-25 1999-10-06 株式会社島津製作所 ラクチドの精製法および重合法
CN114011462B (zh) * 2021-11-18 2023-10-27 扬州大学 聚苯胺负载锌催化剂及其制备方法与应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701707A1 (fr) * 1993-02-17 1994-08-26 Du Pont Procédé pour la purification de lactide.

Also Published As

Publication number Publication date
SE322788B (fr) 1970-04-20
GB1122229A (en) 1968-07-31
BE674355A (fr) 1966-06-27
DE1280838B (de) 1968-10-24
NL6516979A (fr) 1966-06-29

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