DD127321A5 - - Google Patents

Info

Publication number
DD127321A5
DD127321A5 DD196327A DD19632776A DD127321A5 DD 127321 A5 DD127321 A5 DD 127321A5 DD 196327 A DD196327 A DD 196327A DD 19632776 A DD19632776 A DD 19632776A DD 127321 A5 DD127321 A5 DD 127321A5
Authority
DD
German Democratic Republic
Application number
DD196327A
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
Priority claimed from FR7538775A external-priority patent/FR2335490A1/fr
Priority claimed from FR7632484A external-priority patent/FR2369242A2/fr
Application filed filed Critical
Publication of DD127321A5 publication Critical patent/DD127321A5/xx

Links

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)
  • Polyesters Or Polycarbonates (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
DD196327A 1975-12-16 1976-12-14 DD127321A5 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7538775A FR2335490A1 (fr) 1975-12-16 1975-12-16 Procede d'obtention de terephtalate de dimethyle a partir de dechets de polyester
FR7632484A FR2369242A2 (fr) 1976-10-26 1976-10-26 Procede d'obtention de terephtalate de dimethyle a partir de dechets de polyester

Publications (1)

Publication Number Publication Date
DD127321A5 true DD127321A5 (fr) 1977-09-14

Family

ID=26219197

Family Applications (1)

Application Number Title Priority Date Filing Date
DD196327A DD127321A5 (fr) 1975-12-16 1976-12-14

Country Status (11)

Country Link
US (1) US4163860A (fr)
JP (1) JPS606347B2 (fr)
BR (1) BR7608395A (fr)
CA (1) CA1039742A (fr)
DD (1) DD127321A5 (fr)
DE (1) DE2657044C2 (fr)
ES (1) ES454282A1 (fr)
GB (1) GB1540622A (fr)
OA (1) OA05495A (fr)
PH (1) PH13380A (fr)
PL (1) PL105524B1 (fr)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929749A (en) * 1989-03-15 1990-05-29 Synergistics Industries, Limited Production of terephthalate esters by degradative transesterification of scrap or virgin terephthalate polyesters
US5045122A (en) * 1989-12-14 1991-09-03 Eastman Kodak Company Ester hydrolysis and depolymerization of polyester and polycarbonate polymers
US5051528A (en) * 1990-04-24 1991-09-24 Eastman Kodak Company Recovery process for ethylene glycol and dimethylterephthalate
US5236959A (en) * 1992-03-12 1993-08-17 Hoechst Celanese Corporation Process for recycling polyester/cotton blends
US5328982A (en) * 1992-11-02 1994-07-12 Eastman Chemical Company Depolymerization of substantially amorphous polyesters
US5298530A (en) * 1992-11-25 1994-03-29 Eastman Kodak Company Process of recovering components from scrap polyester
US5414113A (en) * 1993-10-18 1995-05-09 Amoco Corporation Process for recovery of aromatic acid from waste polyester resin
US5498749A (en) * 1993-10-22 1996-03-12 Eastman Chemical Company Process for separating cyclohexane dimethanol from dimethyl terephthalate
US5414106A (en) * 1994-02-14 1995-05-09 Hoechst Celanese Corporation Process for recovering dimethyl terephthalate
US5414022A (en) * 1994-03-10 1995-05-09 Eastman Kodak Company Process of recovering components from polyester resins
US5395858A (en) * 1994-04-28 1995-03-07 Partek, Inc. Process for recycling polyester
US5580905A (en) * 1994-04-28 1996-12-03 United Resource Recovery Corporation Process for recycling polyesters
US5393916A (en) * 1994-06-24 1995-02-28 Eastman Kodak Company Inhibition of dioxane formation during recovery of glycols from polyester resins
US5414107A (en) * 1994-07-20 1995-05-09 Hoechst Celanese Corporation Process for recycling polyethylene terephthalate process residues containing alkali metal organic salts
US5672729A (en) * 1995-07-28 1997-09-30 Eastman Kodak Company Recovery of terephthalate diesters from glycol residues
US5502239A (en) * 1995-08-07 1996-03-26 Hoechst Celanese Corporation Process for recovering dimethyl terephthalate
US5744503A (en) * 1996-02-01 1998-04-28 Hoechst Celanese Corporation Recycling polyester and recovering glycols
US5958987A (en) 1996-04-10 1999-09-28 The Coca-Cola Company Process for separating polyester from other materials
US5952520A (en) * 1996-07-10 1999-09-14 Eastman Kodak Company Recovery of ester monomer from polyester resins
US5821381A (en) * 1997-02-03 1998-10-13 Eastman Kodak Company Low pressure process for purifying crude polyester by sublimation
US5712410A (en) * 1997-03-03 1998-01-27 Eastman Kodak Company Gas phase crystallization of dimethyl terephthalate
US6001980A (en) * 1997-09-03 1999-12-14 Hoechst Celanese Corporation Polyester toner composition for electrophotographic imaging systems
US6472557B1 (en) 1999-02-10 2002-10-29 Eastman Chemical Company Process for recycling polyesters
WO2002102884A1 (fr) * 2001-06-19 2002-12-27 United Resource Recovery Corporation Procede relatif a la separation de polyester a partir d'autres materiaux
US20050054757A1 (en) * 2003-09-10 2005-03-10 Pearson Jason Clay Method for reducing the acetaldehyde level in polyesters
US7157139B2 (en) * 2004-04-19 2007-01-02 Grant W. Doney Polymer manufacturing process
US7098299B1 (en) * 2005-03-16 2006-08-29 United Resource Recovery Corporation Separation of contaminants from polyester materials
US8476364B2 (en) * 2007-03-29 2013-07-02 Beaulieu Group, Llc Polymer manufacturing process
US12071519B2 (en) 2017-09-15 2024-08-27 9449710 Canada Inc. Terephthalic acid esters formation
US10252976B1 (en) * 2017-09-15 2019-04-09 9449710 Canada Inc. Terephthalic acid esters formation
SG11202012691XA (en) 2018-06-25 2021-01-28 9449710 Canada Inc Terephthalic acid esters formation
US11248103B2 (en) 2019-03-20 2022-02-15 9449710 Canada Inc. Process for the depolymerization of polyethylene terephthalate (PET)
WO2022243832A1 (fr) * 2021-05-17 2022-11-24 Aquafil S.P.A. Procédé de dépolymérisation de téréphtalate de polyéthylène par glycolyse
EP4423050A1 (fr) * 2021-10-25 2024-09-04 Eastman Chemical Company Procédés de récupération de téréphtalates de dialkyle à partir de compositions de polyester
LU102949B1 (en) 2022-05-03 2023-11-06 Univ Hamburg Method for the depolymerization of a terephthalate polyester
EP4273190A1 (fr) 2022-05-03 2023-11-08 Universität Hamburg Procédé de dépolymérisation d'un polyester téréphtalate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476052A (en) * 1947-01-02 1949-07-12 Standard Oil Dev Co Ester exchange reaction
FR1081681A (fr) * 1952-08-09 1954-12-22 Perfogit Procédé de récupération de chutes de polyesters synthétiques
US3784578A (en) * 1970-06-26 1974-01-08 Bayer Ag Process for the production of allyl esters

Also Published As

Publication number Publication date
BR7608395A (pt) 1977-12-13
GB1540622A (en) 1979-02-14
JPS5277024A (en) 1977-06-29
US4163860A (en) 1979-08-07
PH13380A (en) 1980-03-25
DE2657044C2 (de) 1986-04-10
DE2657044A1 (de) 1977-06-23
ES454282A1 (es) 1977-11-16
CA1039742A (fr) 1978-10-03
PL105524B1 (pl) 1979-10-31
JPS606347B2 (ja) 1985-02-18
OA05495A (fr) 1981-04-30

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