GB1060214A - Process for preparing glycol esters of teraphthalic acid - Google Patents
Process for preparing glycol esters of teraphthalic acidInfo
- Publication number
- GB1060214A GB1060214A GB276865A GB276865A GB1060214A GB 1060214 A GB1060214 A GB 1060214A GB 276865 A GB276865 A GB 276865A GB 276865 A GB276865 A GB 276865A GB 1060214 A GB1060214 A GB 1060214A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycol
- glycol esters
- oac
- catalyst
- product
- 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
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
-
- 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
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The direct esterification of terephthalic acid with a glycol, e.g. ethylene glycol, is effected after first homogenizing the reaction mixture which optionally contains a catalyst such as Ca(OAc)2; the product is stated to be a mixed oligomeric ester.ALSO:Polyethylene terephthalate is made from terephthalic acid and ethylene glycol by firstly homogenizing them (e.g. with Ca(OAc)2 catalyst), making an oligomeric ester at 240 DEG C. and catalytically converting this (e.g. with Sb2O3) to high polymer at 285 DEG C. with continuous removal of the glycol in high vacuum; the product has an intrinsic viscosity at least 0.7 and m.p. 262-4 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35545364A | 1964-03-27 | 1964-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1060214A true GB1060214A (en) | 1967-03-01 |
Family
ID=23397480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB276865A Expired GB1060214A (en) | 1964-03-27 | 1965-01-21 | Process for preparing glycol esters of teraphthalic acid |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE661723A (en) |
| CH (1) | CH455737A (en) |
| DE (1) | DE1274109B (en) |
| GB (1) | GB1060214A (en) |
| NL (1) | NL6503767A (en) |
-
1965
- 1965-01-21 GB GB276865A patent/GB1060214A/en not_active Expired
- 1965-03-24 NL NL6503767A patent/NL6503767A/xx unknown
- 1965-03-25 DE DES96198A patent/DE1274109B/en active Pending
- 1965-03-26 BE BE661723A patent/BE661723A/xx unknown
- 1965-03-26 CH CH421165A patent/CH455737A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE661723A (en) | 1965-09-27 |
| NL6503767A (en) | 1965-09-28 |
| DE1274109B (en) | 1968-08-01 |
| CH455737A (en) | 1968-05-15 |
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