JPS63165430A - ポリ乳酸及びそのコポリマーの製造方法 - Google Patents

ポリ乳酸及びそのコポリマーの製造方法

Info

Publication number
JPS63165430A
JPS63165430A JP62320033A JP32003387A JPS63165430A JP S63165430 A JPS63165430 A JP S63165430A JP 62320033 A JP62320033 A JP 62320033A JP 32003387 A JP32003387 A JP 32003387A JP S63165430 A JPS63165430 A JP S63165430A
Authority
JP
Japan
Prior art keywords
lactide
dissolved
lactic acid
polylactic acid
organic solvent
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.)
Pending
Application number
JP62320033A
Other languages
English (en)
Japanese (ja)
Inventor
クラース・シブレン・デ・フリース
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.)
Akzo NV
Original Assignee
Akzo NV
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 Akzo NV filed Critical Akzo NV
Publication of JPS63165430A publication Critical patent/JPS63165430A/ja
Pending legal-status Critical Current

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
    • C08G63/02—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
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
JP62320033A 1986-12-19 1987-12-17 ポリ乳酸及びそのコポリマーの製造方法 Pending JPS63165430A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8603231 1986-12-19
NL8603231 1986-12-19

Publications (1)

Publication Number Publication Date
JPS63165430A true JPS63165430A (ja) 1988-07-08

Family

ID=19849020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62320033A Pending JPS63165430A (ja) 1986-12-19 1987-12-17 ポリ乳酸及びそのコポリマーの製造方法

Country Status (8)

Country Link
US (1) US4797468A (enExample)
EP (1) EP0275581B1 (enExample)
JP (1) JPS63165430A (enExample)
AT (1) ATE79386T1 (enExample)
CA (1) CA1331193C (enExample)
DE (1) DE3781133T2 (enExample)
ES (1) ES2052551T3 (enExample)
GR (1) GR3006204T3 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63254128A (ja) * 1987-03-19 1988-10-20 ベーリンガー、インゲルハイム、カーゲー 吸収し得るポリエステルの精製方法
US5618911A (en) * 1993-08-19 1997-04-08 Toyo Boseki Kabushiki Kaisha Polymer containing lactic acid as its constituting unit and method for producing the same
US10848347B2 (en) 2007-08-31 2020-11-24 Level 3 Communications, Llc Managing virtual local area network domains
US11637751B2 (en) 2007-08-31 2023-04-25 Level 3 Communications, Llc System and method for managing virtual local area networks

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WO1988010260A1 (fr) * 1987-06-16 1988-12-29 Boehringer Ingelheim Kg ''meso-lactide'' et son procede de preparation
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JP2714454B2 (ja) * 1988-11-07 1998-02-16 三井東圧化学株式会社 生体吸収性ポリエステルの製造方法
DE3917178A1 (de) * 1989-05-26 1990-11-29 Boehringer Ingelheim Kg Verbessertes verfahren zur herstellung von d,l-lactid
US5149833A (en) * 1989-05-26 1992-09-22 Boehringer Ingelheim Gmbh Process for preparing D,L-Lactide
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US5618911A (en) * 1993-08-19 1997-04-08 Toyo Boseki Kabushiki Kaisha Polymer containing lactic acid as its constituting unit and method for producing the same
US5714618A (en) * 1993-08-19 1998-02-03 Toyo Boseki Kabushiki Kaisha Polymer containing lactic acid as its constituting unit and method for producing the same
CN1051095C (zh) * 1993-08-19 2000-04-05 东洋纺织株式会社 含乳酸结构单元的聚合物及其生产方法
US10848347B2 (en) 2007-08-31 2020-11-24 Level 3 Communications, Llc Managing virtual local area network domains
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CA1331193C (en) 1994-08-02
DE3781133D1 (de) 1992-09-17
GR3006204T3 (enExample) 1993-06-21
DE3781133T2 (de) 1993-06-24
EP0275581A1 (en) 1988-07-27
US4797468A (en) 1989-01-10
ATE79386T1 (de) 1992-08-15
EP0275581B1 (en) 1992-08-12

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