FR2128697A1 - One-step esterification of terephthalic acid - first mixing acid with boiling diol used for the esterification - Google Patents

One-step esterification of terephthalic acid - first mixing acid with boiling diol used for the esterification

Info

Publication number
FR2128697A1
FR2128697A1 FR7207855A FR7207855A FR2128697A1 FR 2128697 A1 FR2128697 A1 FR 2128697A1 FR 7207855 A FR7207855 A FR 7207855A FR 7207855 A FR7207855 A FR 7207855A FR 2128697 A1 FR2128697 A1 FR 2128697A1
Authority
FR
France
Prior art keywords
acid
esterification
diol
terephthalic acid
diol used
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.)
Withdrawn
Application number
FR7207855A
Other languages
French (fr)
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.)
Sandoz AG
Original Assignee
Sandoz 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 Sandoz AG filed Critical Sandoz AG
Publication of FR2128697A1 publication Critical patent/FR2128697A1/en
Withdrawn legal-status Critical Current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
    • 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

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)
  • Artificial Filaments (AREA)

Abstract

The diol esters used to prepare polyesters for use as fibres are obtd. in one-step as coloureless or white granulates, using any grain size of acid. The acid is first mixed with the 2-10 C alkane diol at its b.pt. and esterification carried out in presence of non-acid catalysts, pref. Ca or its cpds., at a temp. above the b.pt. and a press. above the vapour press. of the diol. 1-1.5 mole alkane diol are used per moles terephthalic acid.
FR7207855A 1971-03-08 1972-03-07 One-step esterification of terephthalic acid - first mixing acid with boiling diol used for the esterification Withdrawn FR2128697A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT196571 1971-03-08

Publications (1)

Publication Number Publication Date
FR2128697A1 true FR2128697A1 (en) 1972-10-20

Family

ID=3524882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7207855A Withdrawn FR2128697A1 (en) 1971-03-08 1972-03-07 One-step esterification of terephthalic acid - first mixing acid with boiling diol used for the esterification

Country Status (6)

Country Link
BE (1) BE780379A (en)
BR (1) BR7201281D0 (en)
DE (1) DE2210655A1 (en)
FR (1) FR2128697A1 (en)
IT (1) IT953942B (en)
NL (1) NL7203049A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19509551A1 (en) * 1995-03-16 1996-09-19 Basf Ag Process for the continuous production of thermoplastic polyesters

Also Published As

Publication number Publication date
DE2210655A1 (en) 1972-09-21
NL7203049A (en) 1972-09-12
BE780379A (en) 1972-09-08
BR7201281D0 (en) 1973-05-31
IT953942B (en) 1973-08-10

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Legal Events

Date Code Title Description
ST Notification of lapse