BE674355A - - Google Patents

Info

Publication number
BE674355A
BE674355A BE674355DA BE674355A BE 674355 A BE674355 A BE 674355A BE 674355D A BE674355D A BE 674355DA BE 674355 A BE674355 A BE 674355A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE674355A publication Critical patent/BE674355A/xx

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)
BE674355D 1964-12-28 1965-12-27 BE674355A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE674355A true BE674355A (enrdf_load_stackoverflow) 1966-06-27

Family

ID=23671671

Family Applications (1)

Application Number Title Priority Date Filing Date
BE674355D BE674355A (enrdf_load_stackoverflow) 1964-12-28 1965-12-27

Country Status (6)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0339882A1 (en) * 1988-04-27 1989-11-02 MITSUI TOATSU CHEMICALS, Inc. Process for the production of 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
US5444113A (en) * 1988-08-08 1995-08-22 Ecopol, Llc End use applications of biodegradable polymers
US5274127A (en) * 1990-09-18 1993-12-28 Biopak Technology, Ltd. Lactide production from dehydration of aqueous lactic acid feed
US5332839A (en) * 1990-09-18 1994-07-26 Biopak Technology, Ltd. Catalytic production of lactide directly from lactic acid
US5420304A (en) * 1992-03-19 1995-05-30 Biopak Technology, Ltd. Method to produce cyclic esters
US5675021A (en) * 1992-03-19 1997-10-07 Chronopol, Inc. Method to produce and purify cyclic esters
US5686630A (en) * 1993-09-29 1997-11-11 Chronopol, Inc. Purifying cyclic esters by aqueous solvent extraction
CA2115472C (en) * 1993-02-17 2002-08-13 William George O'brien Melt crystallization purification of lactides
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

Also Published As

Publication number Publication date
GB1122229A (en) 1968-07-31
DE1280838B (de) 1968-10-24
FR1462616A (fr) 1966-12-16
SE322788B (enrdf_load_stackoverflow) 1970-04-20
NL6516979A (enrdf_load_stackoverflow) 1966-06-29

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