PT84494B - Processo para a purificacao de glicolido - Google Patents

Processo para a purificacao de glicolido

Info

Publication number
PT84494B
PT84494B PT84494A PT8449487A PT84494B PT 84494 B PT84494 B PT 84494B PT 84494 A PT84494 A PT 84494A PT 8449487 A PT8449487 A PT 8449487A PT 84494 B PT84494 B PT 84494B
Authority
PT
Portugal
Prior art keywords
glycolide
alumina
purified
purification
remove
Prior art date
Application number
PT84494A
Other languages
English (en)
Other versions
PT84494A (en
Inventor
David Rhum
Richard Samuel Matthews
Original Assignee
Pfizer Hospital Prod
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 Pfizer Hospital Prod filed Critical Pfizer Hospital Prod
Publication of PT84494A publication Critical patent/PT84494A/pt
Publication of PT84494B publication Critical patent/PT84494B/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/14—Treatment of polymer emulsions
    • C08F6/16—Purification
    • 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)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
  • Physical Water Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Saccharide Compounds (AREA)
  • Control Of El Displays (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paper (AREA)
  • Epoxy Compounds (AREA)
  • Steroid Compounds (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Artificial Filaments (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
PT84494A 1986-03-19 1987-03-17 Processo para a purificacao de glicolido PT84494B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/841,489 US4650851A (en) 1986-03-19 1986-03-19 Purification of glycolide

Publications (2)

Publication Number Publication Date
PT84494A PT84494A (en) 1987-04-01
PT84494B true PT84494B (pt) 1989-11-10

Family

ID=25285006

Family Applications (1)

Application Number Title Priority Date Filing Date
PT84494A PT84494B (pt) 1986-03-19 1987-03-17 Processo para a purificacao de glicolido

Country Status (17)

Country Link
US (1) US4650851A (pt)
EP (1) EP0238273B1 (pt)
JP (2) JPS62270574A (pt)
KR (1) KR910005054B1 (pt)
AT (1) ATE52257T1 (pt)
AU (1) AU582680B2 (pt)
CA (1) CA1258466A (pt)
DE (1) DE3762417D1 (pt)
DK (1) DK138187A (pt)
ES (1) ES2014472B3 (pt)
FI (1) FI85374C (pt)
GR (1) GR3000606T3 (pt)
IL (1) IL81904A (pt)
MX (1) MX165808B (pt)
NO (1) NO871121L (pt)
PT (1) PT84494B (pt)
ZA (1) ZA872019B (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3778111D1 (de) * 1986-10-24 1992-05-14 Boehringer Ingelheim Kg Verfahren zur herstellung und reinigung thermolabiler verbindungen.
DE3781133T2 (de) * 1986-12-19 1993-06-24 Akzo Nv Herstellung von polymilchsaeure und copolymeren daraus.
GB2198722B (en) * 1986-12-22 1991-04-17 Comalco Alu Process for the recovery of fluoride values
US5223630A (en) * 1989-10-10 1993-06-29 E. I. Du Pont De Nemours And Company Glycolide purification process
US5171270A (en) * 1990-03-29 1992-12-15 Herrick Robert S Canalicular implant having a collapsible flared section and method
US5163959A (en) * 1990-03-29 1992-11-17 Herrick Robert S Method for treating an eye with a canalicular implant having a collapsible flared section
CA2100960A1 (en) * 1991-03-11 1992-09-12 A. Frederick Elsasser, Jr. Process for controlled depolymerization of feed material to produce a product with lower molecular weight
JP2603769B2 (ja) * 1991-05-22 1997-04-23 株式会社 ワコール 人体の体表面に圧接して着用されるテーピング機能を有する下腿部用サポーター
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
ATE149161T1 (de) * 1992-09-16 1997-03-15 Basf Ag Verfahren zur herstellung von glykolid und lactid
US5412067A (en) * 1993-05-10 1995-05-02 Mitsui Toatsu Chemicals, Inc. Preparation process of polyester
US6150497A (en) * 1998-01-14 2000-11-21 Sherwood Services Ag Method for the production of polyglycolic acid
US7404825B2 (en) * 2001-06-11 2008-07-29 Herrick Ii Robert S Implant capable of forming a differential image in an eye
CN100999516B (zh) * 2006-01-12 2010-11-10 中南大学 乙交酯的提纯方法
FI128487B (en) 2013-05-06 2020-06-15 Teknologian Tutkimuskeskus Vtt Oy Glycolic acid polymers and process for their preparation
WO2016071574A1 (en) 2014-11-06 2016-05-12 Teknologian Tutkimuskeskus Vtt Oy Method of producing glycolic acid polymers
CN106928180B (zh) * 2015-12-31 2020-01-03 上海浦景化工技术股份有限公司 一种从粗乙交酯中连续精制乙交酯的装置及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297033A (en) * 1963-10-31 1967-01-10 American Cyanamid Co Surgical sutures
US3463158A (en) * 1963-10-31 1969-08-26 American Cyanamid Co Polyglycolic acid prosthetic devices
US3442871A (en) * 1966-05-04 1969-05-06 American Cyanamid Co Process for polymerizing a glycolide
US3457280A (en) * 1967-06-12 1969-07-22 American Cyanamid Co Alpha-glycolide and methods for the isolation thereof
US3435008A (en) * 1967-08-22 1969-03-25 American Cyanamid Co Method for preparation of isomerically pure beta-glycolide and polymerization method for glycolide compositions employing partial hydrolyzate of said beta-glycolide
US3597449A (en) * 1967-11-16 1971-08-03 American Cyanamid Co Stable glycolide and lactide composition
US3763190A (en) * 1972-04-19 1973-10-02 Stanford Research Inst Preparation of pure glycolide
US4387264A (en) * 1981-05-04 1983-06-07 Atlantic Richfield Company Diolefin monomer purification process for anionic polymerization

Also Published As

Publication number Publication date
DE3762417D1 (de) 1990-05-31
FI85374B (fi) 1991-12-31
IL81904A0 (en) 1987-10-20
EP0238273A2 (en) 1987-09-23
ATE52257T1 (de) 1990-05-15
KR870008918A (ko) 1987-10-22
US4650851A (en) 1987-03-17
GR3000606T3 (en) 1991-09-27
EP0238273B1 (en) 1990-04-25
AU582680B2 (en) 1989-04-06
ZA872019B (en) 1988-10-26
JPS62270574A (ja) 1987-11-24
NO871121D0 (no) 1987-03-18
JPH06136103A (ja) 1994-05-17
JPH0678426B2 (ja) 1994-10-05
MX165808B (es) 1992-12-07
FI871182A (fi) 1987-09-20
DK138187A (da) 1987-09-20
FI871182A0 (fi) 1987-03-18
ES2014472B3 (es) 1990-07-16
JPH0515712B2 (pt) 1993-03-02
NO871121L (no) 1987-09-21
PT84494A (en) 1987-04-01
DK138187D0 (da) 1987-03-18
KR910005054B1 (ko) 1991-07-22
FI85374C (fi) 1992-04-10
CA1258466A (en) 1989-08-15
EP0238273A3 (en) 1988-10-26
AU7014987A (en) 1987-09-24
IL81904A (en) 1991-07-18

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Legal Events

Date Code Title Description
PD3A Change of proprietorship
PC3A Transfer or assignment

Free format text: 930526 DEKNATEL TECHNOLOGY CORPORATION US

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19941031