GB1432776A - Recovery of polyester film scrap - Google Patents

Recovery of polyester film scrap

Info

Publication number
GB1432776A
GB1432776A GB3522872A GB3522872A GB1432776A GB 1432776 A GB1432776 A GB 1432776A GB 3522872 A GB3522872 A GB 3522872A GB 3522872 A GB3522872 A GB 3522872A GB 1432776 A GB1432776 A GB 1432776A
Authority
GB
United Kingdom
Prior art keywords
polyester film
scrap
recovery
pure polyester
july
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
Application number
GB3522872A
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.)
Agfa Gevaert Ltd
Original Assignee
Agfa Gevaert Ltd
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 Agfa Gevaert Ltd filed Critical Agfa Gevaert Ltd
Priority to GB3522872A priority Critical patent/GB1432776A/en
Priority to CA175,942A priority patent/CA1021896A/en
Priority to FR7325158A priority patent/FR2194987B1/fr
Priority to IT8626773A priority patent/IT994450B/en
Priority to DE19732336724 priority patent/DE2336724A1/en
Priority to LU68050A priority patent/LU68050A1/xx
Priority to BE1005250A priority patent/BE802535A/en
Priority to JP8353973A priority patent/JPS4963768A/ja
Priority to IN1741/CAL/73A priority patent/IN139355B/en
Publication of GB1432776A publication Critical patent/GB1432776A/en
Expired legal-status Critical Current

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
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C11/00—Auxiliary processes in photography
    • G03C11/24—Removing emulsion from waste photographic material; Recovery of photosensitive or other substances
    • 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
    • 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)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Prevention Of Fouling (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

1432776 Recovering polyester film scrap AGFA-GEVAERT 11 July 1973 [27 July 1972] 35228/72 Heading C3R Pure polyester film is recovered from scrap carrying at least one prime coating of a macromolecular hydrophobic polymer soluble in halogenated aliphatic hydrocarbon solvents by washing the scrap with at least one halogenated aliphatic hydrocarbon solvent, separating the pure polyester film therefrom and drying the pure polyester film. Preferably the recovery is applied to polyethylene terephthalate. Examples describe the removal of vinylchloride, vinylidene chloride, N-tert.butylacrylamide and itaconic acid copolymer from a polyethylene terephthalate substrate which may be preceded by the chemical removal of silver residues supported on the coating. Reference is also made to substrates in which part of the terephthalate is replaced by isophthalate, sebacate and adipate.
GB3522872A 1972-07-27 1972-07-27 Recovery of polyester film scrap Expired GB1432776A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB3522872A GB1432776A (en) 1972-07-27 1972-07-27 Recovery of polyester film scrap
CA175,942A CA1021896A (en) 1972-07-27 1973-07-09 Recovery of polyester film scrap
FR7325158A FR2194987B1 (en) 1972-07-27 1973-07-09
IT8626773A IT994450B (en) 1972-07-27 1973-07-10 RECOVERY OF PROCESSING WASTE OF POLYESTER FILM
DE19732336724 DE2336724A1 (en) 1972-07-27 1973-07-19 METHOD FOR RECOVERING WASTE POLYESTER FILM
LU68050A LU68050A1 (en) 1972-07-27 1973-07-19
BE1005250A BE802535A (en) 1972-07-27 1973-07-19 PROCESS FOR THE RECOVERY OF POLYESTER FILM WASTE
JP8353973A JPS4963768A (en) 1972-07-27 1973-07-24
IN1741/CAL/73A IN139355B (en) 1972-07-27 1973-07-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3522872A GB1432776A (en) 1972-07-27 1972-07-27 Recovery of polyester film scrap

Publications (1)

Publication Number Publication Date
GB1432776A true GB1432776A (en) 1976-04-22

Family

ID=10375323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3522872A Expired GB1432776A (en) 1972-07-27 1972-07-27 Recovery of polyester film scrap

Country Status (9)

Country Link
JP (1) JPS4963768A (en)
BE (1) BE802535A (en)
CA (1) CA1021896A (en)
DE (1) DE2336724A1 (en)
FR (1) FR2194987B1 (en)
GB (1) GB1432776A (en)
IN (1) IN139355B (en)
IT (1) IT994450B (en)
LU (1) LU68050A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543364A (en) * 1984-12-13 1985-09-24 The Dow Chemical Company Recovery of polyethylene terephthalate (PET)

Also Published As

Publication number Publication date
FR2194987A1 (en) 1974-03-01
LU68050A1 (en) 1974-09-25
FR2194987B1 (en) 1980-04-25
IN139355B (en) 1976-06-12
CA1021896A (en) 1977-11-29
DE2336724A1 (en) 1974-02-07
IT994450B (en) 1975-10-20
JPS4963768A (en) 1974-06-20
BE802535A (en) 1974-01-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee