GB776282A - Esters of terephthalic acid - Google Patents

Esters of terephthalic acid

Info

Publication number
GB776282A
GB776282A GB16581/54A GB1658154A GB776282A GB 776282 A GB776282 A GB 776282A GB 16581/54 A GB16581/54 A GB 16581/54A GB 1658154 A GB1658154 A GB 1658154A GB 776282 A GB776282 A GB 776282A
Authority
GB
United Kingdom
Prior art keywords
bis
terephthalate
hydroxyethyl
terephthalic acid
ethylene glycol
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
GB16581/54A
Inventor
Neil Munro
John Richard Lewis
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to ES0222037A priority Critical patent/ES222037A1/en
Publication of GB776282A publication Critical patent/GB776282A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters
    • C07C69/82—Terephthalic acid esters
    • 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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Polyethylene terephthalate is prepared by polymerizing bis-(hydroxyethyl) terephthalate obtained by heating together terephthalic acid, ethylene glycol and bis-(hydroxyethyl) terephthalate, the latter having been present at the start of the reaction. In an example bis(hydroxyethyl) terephthalate obtained as above is polymerized by heating in the presence of antimony oxide under vacuum. Specification 578,079, [Group IV], is referred to.ALSO:Bis-(hydroxyethyl) terephthalate containing some low molecular weight polyester derived therefrom, is prepared by heating terephthalic acid with ethylene glycol, some bis-(hydroxyethyl) terephthalate being present at the start of the reaction. The process may be a semi-continuous one wherein on completion of the esterification a part of the product is mixed with more ethylene glycol and terephthalic acid and the esterification is repeated. In examples, a mixture of terephthalic acid, ethylene glycol and bis-(hydroxyethyl) terephthalate is heated to boiling while the water of condensation is distilled off, to yield bis-(hydroxyethyl) terephthalate. The bis-(hydroxyethyl) terephthalate may be polymerized to polyethylene terephthalate (see Group IV (a)). The Provisional Specification also refers to the preparation of bis-(hydroxyalkyl) terephthalates by heating terephthalic acid with a glycol of the formula HO(CH2)nOH, where n is an integer from 3 to 10, some of the bis-(hydroxyalkyl) terephthalate being present at the start of the reaction. Specification 578,079, [Group IV], is referred to.
GB16581/54A 1954-06-04 1954-06-04 Esters of terephthalic acid Expired GB776282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0222037A ES222037A1 (en) 1954-06-04 1955-05-26 A process for manufacturing bis (hidroxy-alcohilic) tertifathes (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB334308X 1954-06-04
GB180555X 1955-05-18

Publications (1)

Publication Number Publication Date
GB776282A true GB776282A (en) 1957-06-05

Family

ID=26253103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16581/54A Expired GB776282A (en) 1954-06-04 1954-06-04 Esters of terephthalic acid

Country Status (6)

Country Link
BE (1) BE538640A (en)
CH (1) CH334308A (en)
DE (1) DE1024713B (en)
FR (1) FR1135295A (en)
GB (1) GB776282A (en)
NL (1) NL88494C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496220A (en) * 1966-04-04 1970-02-17 Mobil Oil Corp Esterification process
WO2001060888A1 (en) * 2000-02-17 2001-08-23 Shell Internationale Research Maatschappij B.V. Zero-heel polyester process
WO2020156965A1 (en) * 2019-02-01 2020-08-06 IFP Energies Nouvelles Method for producing a polyester terephthalate incorporating a depolymerization method
WO2020156966A1 (en) * 2019-02-01 2020-08-06 IFP Energies Nouvelles Method for producing a terephthalate polyester from a monomeric mixture comprising a diester
RU2816663C2 (en) * 2019-02-01 2024-04-02 Ифп Энержи Нувелль Method of producing polyester terephthalate, involving depolymerisation process

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA963995A (en) * 1969-04-01 1975-03-04 Allied Chemical Corporation Process for the preparation of linear condensation polyesters
BE755277A (en) * 1969-09-10 1971-02-01 Goodyear Tire & Rubber PROCESS FOR FORMING A FLUID MIXTURE OF ETHYLENE GLYCOL AND TEREPHTHALIC ACID

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496220A (en) * 1966-04-04 1970-02-17 Mobil Oil Corp Esterification process
WO2001060888A1 (en) * 2000-02-17 2001-08-23 Shell Internationale Research Maatschappij B.V. Zero-heel polyester process
US6528579B2 (en) 2000-02-17 2003-03-04 Shell Oil Company Zero-heel polyester process
WO2020156965A1 (en) * 2019-02-01 2020-08-06 IFP Energies Nouvelles Method for producing a polyester terephthalate incorporating a depolymerization method
WO2020156966A1 (en) * 2019-02-01 2020-08-06 IFP Energies Nouvelles Method for producing a terephthalate polyester from a monomeric mixture comprising a diester
FR3092324A1 (en) * 2019-02-01 2020-08-07 IFP Energies Nouvelles Process for the production of a polyester terephthalate incorporating a depolymerization process
FR3092323A1 (en) * 2019-02-01 2020-08-07 IFP Energies Nouvelles A method of producing a polyester terephthalate from a monomer mixture comprising a diester
CN113396003A (en) * 2019-02-01 2021-09-14 Ifp 新能源公司 Process for producing terephthalic acid esters incorporating depolymerization process
CN113423756A (en) * 2019-02-01 2021-09-21 Ifp 新能源公司 Process for producing a polyterephthalate from a monomer mixture comprising a diester
TWI834807B (en) * 2019-02-01 2024-03-11 法商Ｉｆｐ新能源公司 Process for the production of a terephthalate polyester from a monomer mixture comprising a diester
RU2816663C2 (en) * 2019-02-01 2024-04-02 Ифп Энержи Нувелль Method of producing polyester terephthalate, involving depolymerisation process
US12071509B2 (en) 2019-02-01 2024-08-27 IFP Energies Nouvelles Process for the production of a terephthalate polyester from a monomer mixture comprising a diester

Also Published As

Publication number Publication date
BE538640A (en)
CH334308A (en) 1958-11-30
DE1024713B (en) 1958-02-20
NL88494C (en)
FR1135295A (en) 1957-04-26

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