ATE124679T1 - Zurückgewinnung von ethylenglykol und dimethylterephthalat aus polyethylenterephthalat. - Google Patents

Zurückgewinnung von ethylenglykol und dimethylterephthalat aus polyethylenterephthalat.

Info

Publication number
ATE124679T1
ATE124679T1 AT91909232T AT91909232T ATE124679T1 AT E124679 T1 ATE124679 T1 AT E124679T1 AT 91909232 T AT91909232 T AT 91909232T AT 91909232 T AT91909232 T AT 91909232T AT E124679 T1 ATE124679 T1 AT E124679T1
Authority
AT
Austria
Prior art keywords
ethylene glycol
terephthalate
recovery
polyethylene terephthalate
dimethyl
Prior art date
Application number
AT91909232T
Other languages
English (en)
Inventor
Andrius Algimantas Naujokas
Kevin Michael Ryan
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of ATE124679T1 publication Critical patent/ATE124679T1/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/03Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
AT91909232T 1990-04-24 1991-04-16 Zurückgewinnung von ethylenglykol und dimethylterephthalat aus polyethylenterephthalat. ATE124679T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/521,070 US5051528A (en) 1990-04-24 1990-04-24 Recovery process for ethylene glycol and dimethylterephthalate

Publications (1)

Publication Number Publication Date
ATE124679T1 true ATE124679T1 (de) 1995-07-15

Family

ID=24075211

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91909232T ATE124679T1 (de) 1990-04-24 1991-04-16 Zurückgewinnung von ethylenglykol und dimethylterephthalat aus polyethylenterephthalat.

Country Status (6)

Country Link
US (1) US5051528A (de)
EP (1) EP0526572B1 (de)
JP (1) JP2877514B2 (de)
AT (1) ATE124679T1 (de)
DE (1) DE69111060T2 (de)
WO (1) WO1991016289A1 (de)

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US9062158B2 (en) 2010-12-02 2015-06-23 Basf Se Polyester polyols based on aromatic dicarboxylic acids
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EP2492297A1 (de) 2011-02-23 2012-08-29 Basf Se Polyesterpolyole auf Basis aromatischer Dicarbonsäuren und daraus hergestellte Polyurethanhartschäume
US10000588B2 (en) 2011-07-28 2018-06-19 Eastman Chemical Company Coating for the inner surface of plastic bottles for protection against degradation from volatile organic compounds
US20130029068A1 (en) 2011-07-28 2013-01-31 Eastman Chemical Company Extrusion blow molded articles
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MX364715B (es) 2012-03-23 2019-05-06 Basf Se Procedimiento para la preparacion de espumas duras de poliuretano y espumas duras de poliisocianurato.
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EP4103378A4 (de) 2020-02-10 2024-10-30 Eastman Chemical Company Chemische rückführung von verarbeiteten gemischten kunststoffabfallströmen
CN115052732A (zh) 2020-02-10 2022-09-13 伊士曼化工公司 溶剂分解二醇塔底副产物流的化学回收
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JP2024537179A (ja) 2021-10-06 2024-10-10 イーストマン ケミカル カンパニー ポリエステルカーペット繊維からのバージン品質のpetおよびコポリエステル原料の製造
WO2023076207A1 (en) 2021-10-25 2023-05-04 Eastman Chemical Company Processes for recovering dialkyl terephthalates from polyester compositions
EP4436891A1 (de) 2021-11-22 2024-10-02 Eastman Chemical Company Recycelbare copolyesterartikel mit lebenden scharnieren
WO2023091544A1 (en) 2021-11-22 2023-05-25 Eastman Chemical Company Process for making recyclable copolyesters articles with living hinges
US20250002641A1 (en) 2021-11-22 2025-01-02 Eastman Chemical Company Recyclable copolyesters articles with living hinges
CN118284642A (zh) 2021-11-22 2024-07-02 伊士曼化工公司 制造具有活动铰链的可回收共聚酯制品的方法
LU102949B1 (en) 2022-05-03 2023-11-06 Univ Hamburg Method for the depolymerization of a terephthalate polyester
EP4273190A1 (de) 2022-05-03 2023-11-08 Universität Hamburg Verfahren zur depolymerisation eines terephthalat-polyesters
JPWO2024063099A1 (de) * 2022-09-22 2024-03-28
WO2024220454A1 (en) 2023-04-19 2024-10-24 Eastman Chemical Company Copolyester compositions for recyclable heavy gauge sheet articles
WO2024220458A1 (en) 2023-04-19 2024-10-24 Eastman Chemical Company Copolyester compositions for recyclable heavy gauge sheet articles
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EP4674883A1 (de) 2024-07-01 2026-01-07 Basf Se Herstellung von halogenfrei flammgeschützten polyurethan-hartschäumen und polyisocyanurat-hartschäumen
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WO2026050194A1 (en) 2024-08-27 2026-03-05 Eastman Chemical Company Process for recovering polyester from contaminated polyester recovery feedstock

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US3037050A (en) * 1955-08-05 1962-05-29 Glanzstoff Ag Regeneration of terephthalic acid dimethyl ester from polyethylene terephthalate
NL136399C (de) * 1962-08-17 1900-01-01
DE1247291B (de) * 1964-04-28 1967-08-17 Schwarza Chemiefaser Verfahren und Vorrichtung zur Herstellung von Dialkylterephthalaten durch Abbau von Polyaethylenglykolterephthalaten
US3488298A (en) * 1966-12-01 1970-01-06 Eastman Kodak Co Polyester scrap recovery processes
CH550753A (it) * 1970-11-26 1974-06-28 Sir Soc Italiana Resine Spa Procedimento per la depolimerizzazione di polietilentereftalato.
US3701741A (en) * 1971-02-01 1972-10-31 Eastman Kodak Co Purification of impure scrap poly(ethylene terephthalate)
OA05495A (fr) * 1975-12-16 1981-04-30 Rhone Poulenc Textile Procédé d'obtention de TEREPHTALATE de DIMETHYLE à partir de déchets de polyester.
US4578502A (en) * 1985-01-22 1986-03-25 Cudmore Warner J G Polyethylene terephthalate saponification process

Also Published As

Publication number Publication date
DE69111060D1 (de) 1995-08-10
WO1991016289A1 (en) 1991-10-31
EP0526572A1 (de) 1993-02-10
JP2877514B2 (ja) 1999-03-31
DE69111060T2 (de) 1995-11-02
US5051528A (en) 1991-09-24
JPH05507910A (ja) 1993-11-11
EP0526572B1 (de) 1995-07-05

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