GB1337751A - Process and apparatus for the continuous production of linear polyesters - Google Patents

Process and apparatus for the continuous production of linear polyesters

Info

Publication number
GB1337751A
GB1337751A GB5672970A GB5672970A GB1337751A GB 1337751 A GB1337751 A GB 1337751A GB 5672970 A GB5672970 A GB 5672970A GB 5672970 A GB5672970 A GB 5672970A GB 1337751 A GB1337751 A GB 1337751A
Authority
GB
United Kingdom
Prior art keywords
chamber
ester interchange
ethylene glycol
chambers
temperature
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
GB5672970A
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.)
Davy Ashmore AG
Original Assignee
Davy Ashmore AG
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 Davy Ashmore AG filed Critical Davy Ashmore AG
Publication of GB1337751A publication Critical patent/GB1337751A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • 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
    • C08G63/785—Preparation processes characterised by the apparatus used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1337751 Polyesters DAVY ASHMORE AG 30 Nov 1970 [26 March 1970] 56729/70 Heading C3R [Also in Division B1] Polyethylene terephthalate is produced by a continuous process comprising ester interchange of dimethyl terephthalate with ethylene glycol in the presence of an ester interchange catalyst, e.g. zinc or manganese acetate, and subsequent polycondensation of the bis-2- hydroxyethylene terephthalate obtained, in which in the ester interchange stage the mixture of dimethyl terephthalate and ethylene glycol containing an excess of ethylene glycol is led through a generally horizontal flow path in a flow system divided into at least two chambers, the temperature of each of which reaches polycondensation temperature, the methanol produced being distilled and the evaporating ethylene glycol being condensed and recycled into the first ester interchange stage chamber, the reaction temperature in the last chamber, or in at least the last chamber of the ester interchange stage being increased as compared with the preceding chamber by at least 15‹ C. and the dwell-time in the last chamber being simultaneously reduced as compared with the preceding chamber. The reduction in dwelltime may be 50% for a temperature increase of 20‹ C. The ester interchange reaction may be effected in an apparatus comprising successive reaction chambers through which the product successively flows, the individual reaction chambers possessing volumes reduced in proportion to the respective reduction in dwell-times. Each chamber may be constructed as a separate vessel possessing circulating ducting for mixing the product leading from the lower part of the vessel and returning it into the floor of the vessel, the connections for feeding in and removal of the product being incorporated in this ducting. A bottomless distillation column may be arranged at the head of the first chamber for separation of methanol and the vapour pipes from all the chambers may be connected to this column.
GB5672970A 1970-03-26 1970-11-30 Process and apparatus for the continuous production of linear polyesters Expired GB1337751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702014818 DE2014818B2 (en) 1970-03-26 1970-03-26 PROCESS FOR THE CONTINUOUS MANUFACTURING OF POLYAETHYLENE TEREPHTHALATE

Publications (1)

Publication Number Publication Date
GB1337751A true GB1337751A (en) 1973-11-21

Family

ID=5766495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5672970A Expired GB1337751A (en) 1970-03-26 1970-11-30 Process and apparatus for the continuous production of linear polyesters

Country Status (6)

Country Link
CA (1) CA971297A (en)
CS (1) CS188874B2 (en)
DE (1) DE2014818B2 (en)
ES (1) ES388047A1 (en)
FR (1) FR2083596B1 (en)
GB (1) GB1337751A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110316A (en) * 1977-04-14 1978-08-29 E. I. Du Pont De Nemours And Company Improved process for preparing poly(ethylene terephthalate)
US4146729A (en) * 1977-04-07 1979-03-27 E. I. Du Pont De Nemours And Company Process for preparing poly(ethylene terephthalate)
US7358322B2 (en) 2004-03-09 2008-04-15 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US7655746B2 (en) 2005-09-16 2010-02-02 Eastman Chemical Company Phosphorus containing compounds for reducing acetaldehyde in polyesters polymers
US7838596B2 (en) 2005-09-16 2010-11-23 Eastman Chemical Company Late addition to effect compositional modifications in condensation polymers
US7932345B2 (en) 2005-09-16 2011-04-26 Grupo Petrotemex, S.A. De C.V. Aluminum containing polyester polymers having low acetaldehyde generation rates
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
US8022168B2 (en) 2004-09-02 2011-09-20 Grupo Petrotexmex, S.A. de C.V. Spheroidal polyester polymer particles
US8431202B2 (en) 2005-09-16 2013-04-30 Grupo Petrotemex, S.A. De C.V. Aluminum/alkaline or alkali/titanium containing polyesters having improved reheat, color and clarity
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US8901272B2 (en) 2007-02-02 2014-12-02 Grupo Petrotemex, S.A. De C.V. Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration
US9267007B2 (en) 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100507698B1 (en) * 2002-05-31 2005-08-11 주식회사 효성 An apparatus for batch polymerization of polyester

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1423984A (en) * 1964-10-20 1966-01-07 Rhodiaceta Process for the continuous preparation of bis- (beta-hydroxyethyl) terephthalate and oligomers thereof
FR1481536A (en) * 1965-06-01 1967-05-19 Zimmer Ag Hans J Process for the continuous preparation of polyesters

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146729A (en) * 1977-04-07 1979-03-27 E. I. Du Pont De Nemours And Company Process for preparing poly(ethylene terephthalate)
US4110316A (en) * 1977-04-14 1978-08-29 E. I. Du Pont De Nemours And Company Improved process for preparing poly(ethylene terephthalate)
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US8106145B2 (en) 2004-03-09 2012-01-31 Grupo Petrotemex. S.A. de C.V. High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7358322B2 (en) 2004-03-09 2008-04-15 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7368522B2 (en) 2004-03-09 2008-05-06 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7786247B2 (en) 2004-03-09 2010-08-31 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7902318B2 (en) 2004-03-09 2011-03-08 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US8299203B2 (en) 2004-03-09 2012-10-30 Grupo Petrotemex, S.A. De C.V. High IV melt phase polyester polymer catalyzed with antimony containing compounds
US8968615B2 (en) 2004-09-02 2015-03-03 Eastman Chemical Company Low melting polyester polymers
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
US8022168B2 (en) 2004-09-02 2011-09-20 Grupo Petrotexmex, S.A. de C.V. Spheroidal polyester polymer particles
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US8987408B2 (en) 2005-06-16 2015-03-24 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates
US7932345B2 (en) 2005-09-16 2011-04-26 Grupo Petrotemex, S.A. De C.V. Aluminum containing polyester polymers having low acetaldehyde generation rates
US8431202B2 (en) 2005-09-16 2013-04-30 Grupo Petrotemex, S.A. De C.V. Aluminum/alkaline or alkali/titanium containing polyesters having improved reheat, color and clarity
US7838596B2 (en) 2005-09-16 2010-11-23 Eastman Chemical Company Late addition to effect compositional modifications in condensation polymers
US8791187B2 (en) 2005-09-16 2014-07-29 Grupo Petrotemex, S.A. De C.V. Aluminum/alkyline or alkali/titanium containing polyesters having improved reheat, color and clarity
US7655746B2 (en) 2005-09-16 2010-02-02 Eastman Chemical Company Phosphorus containing compounds for reducing acetaldehyde in polyesters polymers
US9267007B2 (en) 2005-09-16 2016-02-23 Grupo Petrotemex, S.A. De C.V. Method for addition of additives into a polymer melt
US8901272B2 (en) 2007-02-02 2014-12-02 Grupo Petrotemex, S.A. De C.V. Polyester polymers with low acetaldehyde generation rates and high vinyl ends concentration

Also Published As

Publication number Publication date
DE2014818A1 (en) 1972-02-17
ES388047A1 (en) 1974-03-01
CA971297A (en) 1975-07-15
FR2083596A1 (en) 1971-12-17
CS188874B2 (en) 1979-03-30
FR2083596B1 (en) 1975-06-06
DE2014818B2 (en) 1977-07-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee