DE69317097D1 - Depolymerisierung - Google Patents

Depolymerisierung

Info

Publication number
DE69317097D1
DE69317097D1 DE69317097T DE69317097T DE69317097D1 DE 69317097 D1 DE69317097 D1 DE 69317097D1 DE 69317097 T DE69317097 T DE 69317097T DE 69317097 T DE69317097 T DE 69317097T DE 69317097 D1 DE69317097 D1 DE 69317097D1
Authority
DE
Germany
Prior art keywords
polymer
depolymerization
depolymerised
monomer
heating
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69317097T
Other languages
English (en)
Other versions
DE69317097T2 (de
DE69317097T3 (de
Inventor
Donald James Highgate
Patrick William Vaughan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VERGIER Ltd DU
Original Assignee
VERGIER Ltd DU
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10726175&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69317097(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by VERGIER Ltd DU filed Critical VERGIER Ltd DU
Publication of DE69317097D1 publication Critical patent/DE69317097D1/de
Publication of DE69317097T2 publication Critical patent/DE69317097T2/de
Application granted granted Critical
Publication of DE69317097T3 publication Critical patent/DE69317097T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Saccharide Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Silicon Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
DE69317097T 1992-12-04 1993-12-01 Depolymerisierung Expired - Fee Related DE69317097T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929225461A GB9225461D0 (en) 1992-12-04 1992-12-04 Depolymerisation process and apparatus

Publications (3)

Publication Number Publication Date
DE69317097D1 true DE69317097D1 (de) 1998-04-02
DE69317097T2 DE69317097T2 (de) 1998-07-09
DE69317097T3 DE69317097T3 (de) 2002-11-07

Family

ID=10726175

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69317097T Expired - Fee Related DE69317097T3 (de) 1992-12-04 1993-12-01 Depolymerisierung

Country Status (6)

Country Link
US (1) US5663420A (de)
EP (1) EP0600727B2 (de)
AT (1) ATE163401T1 (de)
DE (1) DE69317097T3 (de)
ES (1) ES2114011T5 (de)
GB (1) GB9225461D0 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843112C2 (de) * 1998-09-21 2002-07-18 Roehm Gmbh Verfahren zur Rückgewinnung von monomeren Estern substituierter oder unsubstituierter Acrylsäure aus entsprechende Struktureinheiten aufweisendem Polymermaterial, vorzugsweise durch Depolymerisation von Polymethylmethacrylat
US20060205845A1 (en) * 2004-03-20 2006-09-14 Roehm Gbmh & Co. Kg Depolymerization method and device
EP2157075B1 (de) * 2007-03-07 2014-04-30 Mitsubishi Rayon Co. Ltd. Verfahren zur rückgewinnung eines harzzersetzungsprodukts
FR3080622B1 (fr) * 2018-04-27 2020-11-20 Arkema France Procede de recyclage de thermoplastique par depolymerisation courte
WO2023210564A1 (ja) * 2022-04-27 2023-11-02 住友化学株式会社 組成物
EP4339185A1 (de) * 2022-09-16 2024-03-20 Arkema France Verfahren und anlage zur herstellung eines monomers durch depolymerisierung des entsprechenden polymers
EP4435019A1 (de) 2023-03-22 2024-09-25 Röhm GmbH Recycle-mma und dessen verwendung in einem kontinuierlichen polymerisationsprozess

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030901A (en) * 1935-01-10 1936-02-18 Du Pont Viscoloid Co Process for depolymerizing alpha substituted acrylic acid esters
FR809386A (fr) * 1935-07-20 1937-03-02 Rohm & Haas Ag Procédé pour monomériser des esters polyméthacryliques
US2341282A (en) * 1940-11-13 1944-02-08 Du Pont Purification of methyl methacrylate
US2858255A (en) * 1953-03-23 1958-10-28 Segui Esteban Domingo Process and device for the regeneration of monomers starting from polymethacrylate and, more especially, methyl polymethacrylate
DE1568368A1 (de) * 1966-02-05 1970-01-02 Degussa Verfahren zur Gewinnung von monomeren Spaltprodukten durch thermischen Abbau von Polymeren
US3886202A (en) * 1970-05-19 1975-05-27 Denshikagaki Kk Method for depolymerizing thermoplastic resins by liquid heat transfer media
JPS4897972A (de) † 1972-03-27 1973-12-13
US3868410A (en) * 1972-08-03 1975-02-25 Celanese Corp Conversion of oligomeric acrylates to acrylate monomers
US3974206A (en) * 1974-07-09 1976-08-10 Mitsubishi Gas Chemical Company, Inc. Process for the thermal decomposition of thermoplastic resins with a heat transfer medium
DE3030735A1 (de) * 1980-08-14 1982-03-25 Basf Ag, 6700 Ludwigshafen Verfahren zur gewinnung von caprolactam durch spaltung von oligomeren des caprolactams
ES2090494T3 (es) † 1991-03-05 1996-10-16 Bp Chem Int Ltd Cracking de polimeros.

Also Published As

Publication number Publication date
EP0600727A2 (de) 1994-06-08
ES2114011T5 (es) 2002-11-01
DE69317097T2 (de) 1998-07-09
US5663420A (en) 1997-09-02
EP0600727B1 (de) 1998-02-25
EP0600727A3 (de) 1994-10-26
ATE163401T1 (de) 1998-03-15
ES2114011T3 (es) 1998-05-16
EP0600727B2 (de) 2002-06-05
DE69317097T3 (de) 2002-11-07
GB9225461D0 (en) 1993-01-27

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee