CH446293A - Verfahren zum Abbau von Polyäthylenterephthalat zu Terephthalsäuredimethylester - Google Patents
Verfahren zum Abbau von Polyäthylenterephthalat zu TerephthalsäuredimethylesterInfo
- Publication number
- CH446293A CH446293A CH208465A CH208465A CH446293A CH 446293 A CH446293 A CH 446293A CH 208465 A CH208465 A CH 208465A CH 208465 A CH208465 A CH 208465A CH 446293 A CH446293 A CH 446293A
- Authority
- CH
- Switzerland
- Prior art keywords
- terephthalate
- degradation
- dimethyl
- polyethylene terephthalate
- polyethylene
- Prior art date
Links
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 title 2
- 230000015556 catabolic process Effects 0.000 title 1
- 238000006731 degradation reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- -1 polyethylene terephthalate Polymers 0.000 title 1
- 229920000139 polyethylene terephthalate Polymers 0.000 title 1
- 239000005020 polyethylene terephthalate Substances 0.000 title 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0042031 | 1964-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH446293A true CH446293A (de) | 1967-11-15 |
Family
ID=7098913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH208465A CH446293A (de) | 1964-02-18 | 1965-02-16 | Verfahren zum Abbau von Polyäthylenterephthalat zu Terephthalsäuredimethylester |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3403115A (de) |
| CH (1) | CH446293A (de) |
| DE (1) | DE1443876A1 (de) |
| GB (1) | GB1061542A (de) |
| NL (1) | NL6502050A (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3488298A (en) * | 1966-12-01 | 1970-01-06 | Eastman Kodak Co | Polyester scrap recovery processes |
| US3501420A (en) * | 1967-10-20 | 1970-03-17 | Eastman Kodak Co | High purity polyester depolymerization products from polyester scrap by polish hydrogenation |
| SG74541A1 (en) * | 1992-05-18 | 2000-08-22 | Swig Pty Ltd Acn 061 099 778 | Improved polyethylene terephthalate decontamination |
| US5602187A (en) * | 1992-05-18 | 1997-02-11 | Swig Pty Ltd. | Polyethylene terephthalate decontamination |
| US5504121A (en) * | 1992-05-18 | 1996-04-02 | Swig Pty Ltd. | Polyethylene terephthalate decontamination |
| US6919383B2 (en) * | 2001-04-10 | 2005-07-19 | North Carolina State University | CO2-assisted deploymerization, purification and recycling of step-growth polymers |
| RU2384592C1 (ru) * | 2008-11-27 | 2010-03-20 | Учреждение Российской Академии Наук Институт Общей И Неорганической Химии Им. Н.С. Курнакова Ран (Ионх Ран) | Способ переработки отходов полиэтилентерефталата в порошкообразный продукт |
| WO2012115984A2 (en) | 2011-02-21 | 2012-08-30 | Felice Kristopher M | Polyurethane dispersions and methods of making and using same |
| JP2014520008A (ja) | 2011-06-10 | 2014-08-21 | フェリス、クリストファー、エム． | 透明アクリルコーティング |
| EP3363852A1 (de) * | 2017-02-20 | 2018-08-22 | Swerea IVF AB | Rezyklierung von abfällen aus polyestertextilien |
| CN112805321B (zh) | 2018-08-17 | 2023-09-01 | 宜家供应股份公司 | 聚酯纺织品废料回收利用 |
| US11248103B2 (en) | 2019-03-20 | 2022-02-15 | 9449710 Canada Inc. | Process for the depolymerization of polyethylene terephthalate (PET) |
| WO2021126939A1 (en) * | 2019-12-19 | 2021-06-24 | Eastman Chemical Company | Method for producing dimethyl terephthalate from polyester methanolysis depolymerization systems |
| EP4273190A1 (de) | 2022-05-03 | 2023-11-08 | Universität Hamburg | Verfahren zur depolymerisation eines terephthalat-polyesters |
| LU102949B1 (en) | 2022-05-03 | 2023-11-06 | Univ Hamburg | Method for the depolymerization of a terephthalate polyester |
| US12401563B2 (en) | 2023-01-08 | 2025-08-26 | Keysight Technologies, Inc. | Methods, systems, and computer readable media for detecting network service anomalies |
-
1964
- 1964-02-18 DE DE19641443876 patent/DE1443876A1/de active Pending
-
1965
- 1965-02-16 US US432949A patent/US3403115A/en not_active Expired - Lifetime
- 1965-02-16 CH CH208465A patent/CH446293A/de unknown
- 1965-02-18 GB GB7097/65A patent/GB1061542A/en not_active Expired
- 1965-02-18 NL NL6502050A patent/NL6502050A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1443876A1 (de) | 1968-11-07 |
| GB1061542A (en) | 1967-03-15 |
| NL6502050A (de) | 1965-08-19 |
| US3403115A (en) | 1968-09-24 |
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