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FR2111696A1 - Polyethylene terephthalate polymerisation - in solid phase by heating powdered polymer in inert gas stream in rotating inclined - Google Patents

Polyethylene terephthalate polymerisation - in solid phase by heating powdered polymer in inert gas stream in rotating inclined

Info

Publication number
FR2111696A1
FR2111696A1 FR7137327A FR7137327A FR2111696A1 FR 2111696 A1 FR2111696 A1 FR 2111696A1 FR 7137327 A FR7137327 A FR 7137327A FR 7137327 A FR7137327 A FR 7137327A FR 2111696 A1 FR2111696 A1 FR 2111696A1
Authority
FR
France
Prior art keywords
polymer
polyethylene terephthalate
polymerisation
inert gas
solid phase
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.)
Granted
Application number
FR7137327A
Other languages
French (fr)
Other versions
FR2111696B1 (en
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of FR2111696A1 publication Critical patent/FR2111696A1/en
Application granted granted Critical
Publication of FR2111696B1 publication Critical patent/FR2111696B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/80—Solid-state polycondensation
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Polymerisation of polyethylene terephthalate is effected in the solid phase using a polymer with an intrinsic viscosity of >=0.5, by (a) powdering the polymer, (b) feeding the powdered polymer into an inclined rotary furnace provided with elevators, (c) heating the polymer in the furnace at 220-250 degrees C., for 2-4 hrs. to effect polymsn. and increase its intrinsic viscosity, and (d) passing a hot, dry, inert gas through the polymer to eliminate volatile reaction products. Esp. useful for treating polyethylene terephthalate scrap. The high viscosity polymer can be used for prodn. of durable films, e.g. for insulating motors and for printed circuits, and for prodn. of fibres and moulding powders.
FR7137327A 1970-10-19 1971-10-18 Polyethylene terephthalate polymerisation - in solid phase by heating powdered polymer in inert gas stream in rotating inclined Granted FR2111696A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8216970A 1970-10-19 1970-10-19
US17699071A 1971-09-01 1971-09-01

Publications (2)

Publication Number Publication Date
FR2111696A1 true FR2111696A1 (en) 1972-06-09
FR2111696B1 FR2111696B1 (en) 1974-06-07

Family

ID=26767144

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7137327A Granted FR2111696A1 (en) 1970-10-19 1971-10-18 Polyethylene terephthalate polymerisation - in solid phase by heating powdered polymer in inert gas stream in rotating inclined

Country Status (6)

Country Link
BE (1) BE774134A (en)
CA (1) CA954650A (en)
DE (1) DE2152034A1 (en)
FR (1) FR2111696A1 (en)
LU (1) LU64107A1 (en)
NL (1) NL7114311A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439074A1 (en) * 1978-10-18 1980-05-16 Rhone Poulenc Textile PROCESS FOR REGENERATING POLYMER FROM WASTE
EP0376119A2 (en) * 1988-12-27 1990-07-04 COBARR S.p.A. A method for recycling PET beverage bottles
EP0422282A1 (en) * 1989-10-13 1991-04-17 Phobos N.V. Process for the continuous production of high molecular weight polyester resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688448A5 (en) * 1995-01-06 1997-09-30 Rhane Poulenc Viscosuisse Sa Monofilaments production from

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439074A1 (en) * 1978-10-18 1980-05-16 Rhone Poulenc Textile PROCESS FOR REGENERATING POLYMER FROM WASTE
EP0376119A2 (en) * 1988-12-27 1990-07-04 COBARR S.p.A. A method for recycling PET beverage bottles
EP0376119A3 (en) * 1988-12-27 1991-01-09 COBARR S.p.A. A method for recycling pet beverage bottles
EP0422282A1 (en) * 1989-10-13 1991-04-17 Phobos N.V. Process for the continuous production of high molecular weight polyester resin
WO1991005815A1 (en) * 1989-10-13 1991-05-02 Phobos N.V. Process for the continuous production of high molecular weight polyester resin
TR25970A (en) * 1989-10-13 1993-11-01 Phobos Nv PROCESS FOR CONTINUOUS MANUFACTURING OF HIGH MOLECULAR WEIGHT POLIESTER RECYIN

Also Published As

Publication number Publication date
CA954650A (en) 1974-09-10
FR2111696B1 (en) 1974-06-07
LU64107A1 (en) 1972-06-28
NL7114311A (en) 1972-04-21
DE2152034A1 (en) 1972-04-20
BE774134A (en) 1972-04-19

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