NL159382B - Werkwijze ter bereiding van alfa-glycolide. - Google Patents
Werkwijze ter bereiding van alfa-glycolide.Info
- Publication number
- NL159382B NL159382B NL6806492.A NL6806492A NL159382B NL 159382 B NL159382 B NL 159382B NL 6806492 A NL6806492 A NL 6806492A NL 159382 B NL159382 B NL 159382B
- Authority
- NL
- Netherlands
- Prior art keywords
- glycolide
- preparing alpha
- alpha
- preparing
- alpha glycolide
- Prior art date
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)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64550267A | 1967-06-12 | 1967-06-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6806492A NL6806492A (nl) | 1968-12-13 |
NL159382B true NL159382B (nl) | 1979-02-15 |
Family
ID=24589277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6806492.A NL159382B (nl) | 1967-06-12 | 1968-05-08 | Werkwijze ter bereiding van alfa-glycolide. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3457280A (nl) |
BE (1) | BE714117A (nl) |
CH (1) | CH543501A (nl) |
DE (1) | DE1668993C3 (nl) |
ES (1) | ES354952A1 (nl) |
FR (1) | FR1560162A (nl) |
NL (1) | NL159382B (nl) |
SE (2) | SE378597B (nl) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3912692A (en) * | 1973-05-03 | 1975-10-14 | American Cyanamid Co | Process for polymerizing a substantially pure glycolide composition |
US4716964A (en) * | 1981-08-10 | 1988-01-05 | Exxon Production Research Company | Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion |
US4727163A (en) * | 1985-07-11 | 1988-02-23 | E. I. Du Pont De Nemours And Company | Process for preparing highly pure cyclic esters |
US4650851A (en) * | 1986-03-19 | 1987-03-17 | Pfizer Hospital Products Group, Inc. | Purification of glycolide |
ES2052551T3 (es) * | 1986-12-19 | 1994-07-16 | Akzo Nv | Metodo para preparar poli(acido lactico) o copolimeros de poli(acido lactico) por polimeracion de la lactida. |
US4835293A (en) * | 1987-02-24 | 1989-05-30 | E. I. Du Pont De Nemours And Company | Atmospheric pressure process for preparing pure cyclic esters |
US5274127A (en) * | 1990-09-18 | 1993-12-28 | Biopak Technology, Ltd. | Lactide production from dehydration of aqueous lactic acid feed |
US5319107A (en) * | 1990-09-18 | 1994-06-07 | Biopak Technology, Ltd. | Method to produce cyclic esters |
US5223630A (en) * | 1989-10-10 | 1993-06-29 | E. I. Du Pont De Nemours And Company | Glycolide purification process |
US5043458A (en) * | 1990-05-03 | 1991-08-27 | E. I. Du Pont De Nemours And Company | One-step continuous process for preparing cyclic esters |
US5332839A (en) * | 1990-09-18 | 1994-07-26 | Biopak Technology, Ltd. | Catalytic production of lactide directly from lactic acid |
US5686630A (en) * | 1993-09-29 | 1997-11-11 | Chronopol, Inc. | Purifying cyclic esters by aqueous solvent extraction |
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 |
US6074673A (en) * | 1996-04-22 | 2000-06-13 | Guillen; Manuel | Slow-release, self-absorbing, drug delivery system |
US8298565B2 (en) | 2005-07-15 | 2012-10-30 | Micell Technologies, Inc. | Polymer coatings containing drug powder of controlled morphology |
US20090062909A1 (en) | 2005-07-15 | 2009-03-05 | Micell Technologies, Inc. | Stent with polymer coating containing amorphous rapamycin |
ES2540059T3 (es) | 2006-04-26 | 2015-07-08 | Micell Technologies, Inc. | Recubrimientos que contienen múltiples fármacos |
CN102886326A (zh) | 2006-10-23 | 2013-01-23 | 米歇尔技术公司 | 用于在涂覆过程中为基底充电的保持器 |
US11426494B2 (en) | 2007-01-08 | 2022-08-30 | MT Acquisition Holdings LLC | Stents having biodegradable layers |
JP5603598B2 (ja) | 2007-01-08 | 2014-10-08 | ミセル テクノロジーズ、インコーポレイテッド | 生物分解層を有するステント |
WO2008148013A1 (en) | 2007-05-25 | 2008-12-04 | Micell Technologies, Inc. | Polymer films for medical device coating |
EP3360586B1 (en) | 2008-04-17 | 2024-03-06 | Micell Technologies, Inc. | Stents having bioabsorbable layers |
WO2011009096A1 (en) | 2009-07-16 | 2011-01-20 | Micell Technologies, Inc. | Drug delivery medical device |
CA2946195A1 (en) | 2008-07-17 | 2010-01-21 | Micell Technologies, Inc. | Drug delivery medical device |
US8834913B2 (en) | 2008-12-26 | 2014-09-16 | Battelle Memorial Institute | Medical implants and methods of making medical implants |
CN102481195B (zh) | 2009-04-01 | 2015-03-25 | 米歇尔技术公司 | 涂覆支架 |
WO2010121187A2 (en) | 2009-04-17 | 2010-10-21 | Micell Techologies, Inc. | Stents having controlled elution |
US11369498B2 (en) | 2010-02-02 | 2022-06-28 | MT Acquisition Holdings LLC | Stent and stent delivery system with improved deliverability |
US8795762B2 (en) | 2010-03-26 | 2014-08-05 | Battelle Memorial Institute | System and method for enhanced electrostatic deposition and surface coatings |
WO2011133655A1 (en) | 2010-04-22 | 2011-10-27 | Micell Technologies, Inc. | Stents and other devices having extracellular matrix coating |
EP2593039B1 (en) | 2010-07-16 | 2022-11-30 | Micell Technologies, Inc. | Drug delivery medical device |
WO2012166819A1 (en) | 2011-05-31 | 2012-12-06 | Micell Technologies, Inc. | System and process for formation of a time-released, drug-eluting transferable coating |
WO2013012689A1 (en) | 2011-07-15 | 2013-01-24 | Micell Technologies, Inc. | Drug delivery medical device |
US10188772B2 (en) | 2011-10-18 | 2019-01-29 | Micell Technologies, Inc. | Drug delivery medical device |
EP2967803B1 (en) | 2013-03-12 | 2023-12-27 | Micell Technologies, Inc. | Bioabsorbable biomedical implants |
US10272606B2 (en) | 2013-05-15 | 2019-04-30 | Micell Technologies, Inc. | Bioabsorbable biomedical implants |
CN110684011B (zh) * | 2018-07-06 | 2021-02-09 | 中国石油化工股份有限公司 | 乙交酯的制备方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668162A (en) * | 1952-03-20 | 1954-02-02 | Du Pont | Preparation of high molecular weight polyhydroxyacetic ester |
-
1967
- 1967-06-12 US US645502A patent/US3457280A/en not_active Expired - Lifetime
-
1968
- 1968-03-05 DE DE1668993A patent/DE1668993C3/de not_active Expired
- 1968-04-19 FR FR1560162D patent/FR1560162A/fr not_active Expired
- 1968-04-24 BE BE714117D patent/BE714117A/xx unknown
- 1968-05-08 NL NL6806492.A patent/NL159382B/nl not_active IP Right Cessation
- 1968-06-10 CH CH856168A patent/CH543501A/de not_active IP Right Cessation
- 1968-06-12 SE SE7111003A patent/SE378597B/xx unknown
- 1968-06-12 ES ES354952A patent/ES354952A1/es not_active Expired
- 1968-06-12 SE SE07911/68A patent/SE356047B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US3457280A (en) | 1969-07-22 |
BE714117A (nl) | 1968-10-24 |
NL6806492A (nl) | 1968-12-13 |
CH543501A (de) | 1973-12-14 |
DE1668993B2 (de) | 1973-07-12 |
SE378597B (nl) | 1975-09-08 |
DE1668993A1 (de) | 1972-03-23 |
SE356047B (nl) | 1973-05-14 |
FR1560162A (nl) | 1969-03-14 |
ES354952A1 (es) | 1970-03-01 |
DE1668993C3 (de) | 1974-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: AM CYANAMID |