ATE229549T1 - Verfahren zur entfernung und gewinnung von laktid aus polylaktid - Google Patents
Verfahren zur entfernung und gewinnung von laktid aus polylaktidInfo
- Publication number
- ATE229549T1 ATE229549T1 AT98903059T AT98903059T ATE229549T1 AT E229549 T1 ATE229549 T1 AT E229549T1 AT 98903059 T AT98903059 T AT 98903059T AT 98903059 T AT98903059 T AT 98903059T AT E229549 T1 ATE229549 T1 AT E229549T1
- Authority
- AT
- Austria
- Prior art keywords
- lactide
- gas
- polylactide
- hot
- removal
- Prior art date
Links
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 title abstract 9
- 238000000034 method Methods 0.000 title abstract 2
- 229920000747 poly(lactic acid) Polymers 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 5
- 229920000642 polymer Polymers 0.000 abstract 3
- 239000012159 carrier gas Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
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
- C08G63/88—Post-polymerisation treatment
- C08G63/90—Purification; Drying
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/02—Recovery or working-up of waste materials of solvents, plasticisers or unreacted monomers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Polyesters Or Polycarbonates (AREA)
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Saccharide Compounds (AREA)
- Materials For Medical Uses (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI970649A FI103978B (fi) | 1997-02-14 | 1997-02-14 | Menetelmä laktidin poistamiseksi polylaktidista |
| FI970650A FI107615B (fi) | 1997-02-14 | 1997-02-14 | Menetelmä laktidin talteenottamiseksi |
| PCT/FI1998/000139 WO1998036012A1 (en) | 1997-02-14 | 1998-02-13 | Method for the removal and recovery of lactide from polylactide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE229549T1 true ATE229549T1 (de) | 2002-12-15 |
Family
ID=26160338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT98903059T ATE229549T1 (de) | 1997-02-14 | 1998-02-13 | Verfahren zur entfernung und gewinnung von laktid aus polylaktid |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6187901B1 (de) |
| EP (1) | EP0961800B1 (de) |
| JP (1) | JP2001518126A (de) |
| KR (1) | KR100543541B1 (de) |
| AT (1) | ATE229549T1 (de) |
| AU (1) | AU5991798A (de) |
| DE (1) | DE69810081T2 (de) |
| TW (1) | TW555791B (de) |
| WO (1) | WO1998036012A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122108B (fi) * | 2004-11-17 | 2011-08-31 | Jvs Polymers Oy | Silloittuva biopolymeeri |
| CN100545159C (zh) * | 2005-12-19 | 2009-09-30 | 奇美实业股份有限公司 | α-羟基有机酸环酯类化合物的制造方法 |
| KR101806256B1 (ko) | 2011-02-18 | 2017-12-07 | 술저 켐테크 악티엔게젤샤프트 | 폴리하이드록시-카르복실산의 제조 방법 |
| ES2799501T3 (es) * | 2012-07-24 | 2020-12-18 | Sulzer Management Ag | Método para eliminar un éster de una mezcla de vapor |
| EP2746313B1 (de) | 2012-12-18 | 2017-08-30 | Uhde Inventa-Fischer GmbH | Vorrichtung und Verfahren zur Abtrennung eines cyclischen Diesters aus Polymerschmelzen |
| DE102015206688B4 (de) | 2015-04-14 | 2016-11-24 | Thyssenkrupp Ag | Verfahren zur Kristallisation und Abtrennung niedermolekularer Komponenten aus einem Granulat eines kristallisationsfähigen thermoplastischen Materials sowie Vorrichtung hierzu |
| EP3318590B1 (de) | 2016-11-08 | 2020-08-05 | thyssenkrupp AG | Verfahren zur abtrennung von flüchtigen verbindungen aus viskosen produkten mit einem dünnschichtverdampfer |
| US11629222B2 (en) | 2019-07-01 | 2023-04-18 | Ethicon, Inc. | Calorimetric crystallization method for evaluation of monomer purity |
| JP7548480B2 (ja) | 2020-04-26 | 2024-09-10 | 万華化学(四川)有限公司 | 開環重合法でポリ乳酸を調製する製造方法及びプレポリマー混合物とポリ乳酸 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378801A (en) | 1988-11-01 | 1995-01-03 | Reichert; Dieter | Continuous process for the preparation of resorable polyesters and the use thereof |
| US5136017A (en) * | 1991-02-22 | 1992-08-04 | Polysar Financial Services S.A. | Continuous lactide polymerization |
| DE69509927T2 (de) | 1994-01-21 | 2000-01-27 | Shimadzu Corp., Kyoto | Methode zur Herstellung von Polymilchsäure |
| EP0755956B1 (de) | 1995-07-25 | 2004-01-14 | Toyota Jidosha Kabushiki Kaisha | Verfahren zur Herstellung von Polymilchsäure |
-
1998
- 1998-02-13 AT AT98903059T patent/ATE229549T1/de not_active IP Right Cessation
- 1998-02-13 DE DE69810081T patent/DE69810081T2/de not_active Expired - Fee Related
- 1998-02-13 AU AU59917/98A patent/AU5991798A/en not_active Abandoned
- 1998-02-13 WO PCT/FI1998/000139 patent/WO1998036012A1/en not_active Ceased
- 1998-02-13 JP JP53540098A patent/JP2001518126A/ja not_active Ceased
- 1998-02-13 US US09/367,381 patent/US6187901B1/en not_active Expired - Fee Related
- 1998-02-13 EP EP98903059A patent/EP0961800B1/de not_active Expired - Lifetime
- 1998-02-13 KR KR1019997007295A patent/KR100543541B1/ko not_active Expired - Fee Related
- 1998-03-12 TW TW087103677A patent/TW555791B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100543541B1 (ko) | 2006-01-20 |
| DE69810081D1 (de) | 2003-01-23 |
| AU5991798A (en) | 1998-09-08 |
| DE69810081T2 (de) | 2003-07-24 |
| EP0961800A1 (de) | 1999-12-08 |
| TW555791B (en) | 2003-10-01 |
| KR20000071028A (ko) | 2000-11-25 |
| JP2001518126A (ja) | 2001-10-09 |
| WO1998036012A1 (en) | 1998-08-20 |
| EP0961800B1 (de) | 2002-12-11 |
| US6187901B1 (en) | 2001-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE229549T1 (de) | Verfahren zur entfernung und gewinnung von laktid aus polylaktid | |
| ATE271576T1 (de) | Verfahren und vorrichtung zur herstellung von granulat aus vorprodukten thermoplastischer polyester und copolyester | |
| ATE154334T1 (de) | Verfahren zur entfernung von elementarem schwefel aus einem gasstrom | |
| EP1281055A4 (de) | Verfahren und system zur konservationsbewertung, validierung und überwachung der thermischen verarbeitung | |
| ES2030483T3 (es) | Metodo y aparato para depurar con impurezas. | |
| DE60231033D1 (de) | Verfahren und vorrichtung zur steuerung des abziehens von wärme aus dem kondensator in einem kühlsystem | |
| YU70599A (sh) | Postupak za prevođenje u tečno stanje struje prirodnog gasa koja ima bar jednu komponentu koja se može zamrznuti | |
| AT351066B (de) | Verfahren und vorrichtung zur rueckgewinnung von waerme aus kaelte- oder klimatisierungssystemen | |
| ATE380108T1 (de) | Verfahren und vorrichtung zum extrudieren von mikroporösen folien | |
| NO20034753L (no) | Flate for å fremme dråpedannelse | |
| ATE54595T1 (de) | Schleuderstrahlreinigung. | |
| BRPI0418452A (pt) | sistema para recuperação de um efluente de um processo de congelamento a seco e método para converter o efluente em produto utilizável | |
| ATE251555T1 (de) | Vorrichtung und verfahren zur wärmeabfuhr aus einem motorraum | |
| DE59610131D1 (de) | Verfahren und vorrichtung zur kühlung eines raumes | |
| ATE187610T1 (de) | Verfahren und vorrichtung zum aufbereiten von bei der herstellung von artikeln der tabakverarbeitenden industrie anfallender abluft | |
| DE60225715D1 (de) | Vorrichtung und verfahren zur abtrennung von kohlenwasserstoffen aus materialien | |
| ATE173474T1 (de) | Verfahren zur reinigung von melamin | |
| ATE4935T1 (de) | Verfahren zur waermerueckgewinnung aus einem fliessenden warmen gas und vorrichtung zur durchfuehrung des verfahrens. | |
| ATE29391T1 (de) | Verfahren und vorrichtung zur reinigung von rauchgasen in feuerungsanlagen. | |
| RU2002111876A (ru) | Способ извлечения рения и других элементов | |
| CA2103752C (en) | Particle sorting method | |
| DE60042502D1 (de) | Verfahren und Vorrichtung zur Erzeugung von Tröpfchen aus einer kohärenten Flüssigkeits- oder Schmelzeschicht von gleichmässiger Dicke auf einer rotierenden Scheibe | |
| FI970649L (fi) | Menetelmä laktidin poistamiseksi polylaktidista | |
| ATE161433T1 (de) | Verfahren und vorrichtung zur stofftrennung durch kristallisation von schmelzen | |
| ATE117907T1 (de) | Verfahren und vorrichtung zum reinigen chemischer substanzen. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |