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 esterificationInfo
- 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- Withdrawn
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.
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)
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 |
-
1972
- 1972-03-06 BR BR128172A patent/BR7201281D0/en unknown
- 1972-03-06 DE DE19722210655 patent/DE2210655A1/en active Pending
- 1972-03-07 FR FR7207855A patent/FR2128697A1/en not_active Withdrawn
- 1972-03-07 IT IT6770772A patent/IT953942B/en active
- 1972-03-08 NL NL7203049A patent/NL7203049A/xx unknown
- 1972-03-08 BE BE780379A patent/BE780379A/en unknown
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 |