DE69306308D1 - Verfahren zur Zerlegung von Hydroxycarbonsäurepolymerisat enthaltenden Plasten - Google Patents

Verfahren zur Zerlegung von Hydroxycarbonsäurepolymerisat enthaltenden Plasten

Info

Publication number
DE69306308D1
DE69306308D1 DE69306308T DE69306308T DE69306308D1 DE 69306308 D1 DE69306308 D1 DE 69306308D1 DE 69306308 T DE69306308 T DE 69306308T DE 69306308 T DE69306308 T DE 69306308T DE 69306308 D1 DE69306308 D1 DE 69306308D1
Authority
DE
Germany
Prior art keywords
disassembly
acid polymer
hydroxycarboxylic acid
plastics containing
containing hydroxycarboxylic
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 - Lifetime
Application number
DE69306308T
Other languages
English (en)
Other versions
DE69306308T2 (de
Inventor
Masanobu Ajioka
Katashi Enomoto
Akihiro Yamaguchi
Kazuhiko Suzuki
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.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of DE69306308D1 publication Critical patent/DE69306308D1/de
Application granted granted Critical
Publication of DE69306308T2 publication Critical patent/DE69306308T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
    • 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
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • 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
    • C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
DE1993606308 1992-06-04 1993-06-03 Verfahren zur Zerlegung von Hydroxycarbonsäurepolymerisat enthaltenden Plasten Expired - Lifetime DE69306308T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14394092 1992-06-04

Publications (2)

Publication Number Publication Date
DE69306308D1 true DE69306308D1 (de) 1997-01-16
DE69306308T2 DE69306308T2 (de) 1997-06-19

Family

ID=15350605

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993606308 Expired - Lifetime DE69306308T2 (de) 1992-06-04 1993-06-03 Verfahren zur Zerlegung von Hydroxycarbonsäurepolymerisat enthaltenden Plasten

Country Status (3)

Country Link
US (1) US5780704A (de)
EP (1) EP0573042B1 (de)
DE (1) DE69306308T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767131B1 (fr) * 1997-08-06 1999-10-22 Tredi Procede de recuperation d'acide terephtalique et, le cas echeant, de soude a partir d'une solution de polyterephtalate de sodium
EP1332173A2 (de) 2000-11-06 2003-08-06 The Procter & Gamble Company Verfahren zur entsorgung von verdaubaren kunststofferzeugnissen durch heisse alkalibehandlung
WO2022259026A1 (es) * 2021-06-09 2022-12-15 Universidad Iberoamericana, A.C. Proceso para la obtención de ácido tereftálico y recuperación de hidróxido de sodio de una solución de tereftalato de sodio producido a partir de polietilentereftalato (pet) de reuso
CN114409529A (zh) * 2022-01-30 2022-04-29 安徽丰原发酵技术工程研究有限公司 一种从乳酸聚合物中回收乳酸的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI77441C (fi) * 1985-03-04 1989-03-10 Kemira Oy Foerfarande foer omvandling av vaextmaterial till kemikalier.
DE3603986A1 (de) * 1986-02-08 1987-08-13 Degussa Verfahren zur aufarbeitung der nach abtrennung des enzysm verbleibenden loesung aus der enzymatischen racematspaltung einer n-acetyl-dl-aminocarbonsaeure in gegenwart einer l-aminosaeureacylase
US4781809A (en) * 1986-07-21 1988-11-01 Ionics, Incorporated Recovering free organic acids from solutions in which they occur with other organic matter
FR2605314B1 (fr) * 1986-10-20 1989-04-14 Solvay Procede pour la fabrication de l'acide beta-hydroxybutyrique et de ses sels par hydrolyse d'oligomeres de l'acide beta-hydroxybutyrique en milieu basique.
US4885387A (en) * 1988-02-12 1989-12-05 The United States Of America As Represented By The Secretary Of Agriculture Production of high yields of glycolic and oxalic acids from polysaccharide-containing materials
US5034105A (en) * 1989-07-27 1991-07-23 Michigan Biotechnology Institute Carboxylic acid purification and crystallization process
US5132456A (en) * 1991-05-07 1992-07-21 The Regents Of The University Of California Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pKa of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine

Also Published As

Publication number Publication date
US5780704A (en) 1998-07-14
EP0573042B1 (de) 1996-12-04
EP0573042A1 (de) 1993-12-08
DE69306308T2 (de) 1997-06-19

Similar Documents

Publication Publication Date Title
DE69309864D1 (de) Verfahren zur Herstellung von Olefinpolymer
DE69301571T2 (de) Verfahren zur Herstellung von Clavulansäure
DE69327764D1 (de) Verfahren zur Herstellung von granulösen Nahrungsmitteln
DE69404544D1 (de) Verfahren zur Herstellung von Kunststoffbehältern
DE59404241D1 (de) Verfahren zur Herstellung von Kautschukmischungen
DE69320423T2 (de) Verfahren zur Herstellung von Polykarbonat
DE59302407D1 (de) Verfahren zur Herstellung von Betainen
DE69310232T2 (de) Verfahren zur Herstellung von Organomonochlorsilan
DE69414041T2 (de) Verfahren zur Herstellung von Polymeren
DE69324784D1 (de) Verfahren zur Herstellung von Hartschaumstoffen
DE69414371D1 (de) Verfahren zur Herstellung von flüssigen Düngemitteln
DE69412302T2 (de) Verfahren zur Herstellung von Polyolefinen
DE69027884D1 (de) Verfahren zur Herstellung von expansionsfähigen thermoplastischen Polymerteilchen
DE69306308D1 (de) Verfahren zur Zerlegung von Hydroxycarbonsäurepolymerisat enthaltenden Plasten
DE59302489D1 (de) Verfahren zur Herstellung von Chlor-Fluor-Butenen
DE69411125T2 (de) Verfahren zur Herstellung von Polymer-Partikeln
DE69410312D1 (de) Verfahren zur Herstellung von Poly-3-hydroxybuttersäure
DE69428006T2 (de) Verfahren zur Gewinnung von Carbocalcitonin
DE69307658T2 (de) Verfahren zur Herstellung von Alpha-Hydroxyisobuttersäureamide
DE69413737D1 (de) Verfahren zur Herstellung von Polyolefinen
DE69321408T2 (de) Verfahren zur Herstellung von Polyolefinen
DE69402663D1 (de) Verfahren zur Herstellung von Polymerpartikeln
DE69303319T2 (de) Verfahren zur Herstellung von Ethylenpolymeren
DE59403001D1 (de) Verfahren zur Herstellung von 5-Fluoranthranilsäure
DE59406755D1 (de) Verfahren zur Herstellung von 2-Hydroxy-naphthalin-6-carbonsäure

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP

8380 Miscellaneous part iii

Free format text: IM HEFT 52/98, SEITE 16320, SP.1: DIE LIZENZBEREITSCHAFTSERKLAERUNG WURDE ZURUECKGENOMMEN