GB1027266A - Production of linear polyesters of high molecular weight - Google Patents
Production of linear polyesters of high molecular weightInfo
- Publication number
- GB1027266A GB1027266A GB903764A GB903764A GB1027266A GB 1027266 A GB1027266 A GB 1027266A GB 903764 A GB903764 A GB 903764A GB 903764 A GB903764 A GB 903764A GB 1027266 A GB1027266 A GB 1027266A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- ethylene glycol
- ester
- ammonium
- hydroxyethyl
- 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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
In the manufacture of polyethylene terephthalate by effecting an esterification or ester-interchange reaction between terephthalic acid or a dialkyl ester of terephthalic acid and ethylene glycol followed by polycondensing the resulting ester, there is used as a catalyst, at least for the polycondensation reaction, titanium trichloride, ammonium orthotitanate or ammonium metatitanate. Additional catalysts may be used, such as compounds of Li, Na, K, Ca, Mg, Zn, Ba, Sr, La, Al, Ph, Sn, Ti, Sh, Co, Ge, Mn, Nb, Co, Fe, Nd or Et (e.g. potassium hydroxide, sodium carbonate, calcium acetate or cobaltous chloride) or tetraethyl ammonium hydroxide. Minor amounts of other polyester-forming reagents, e.g. other dicarboxylic acids (or their dialkyl esters), other glycols or hydroxycarboxylic acids may be included. Polyesterification may also be effected in the presence of the usual phosphorus compounds, pigments or delustrants Examples describe the reaction of dimethyl terephthalate and ethylene glycol, with or without bis-(2-hydroxyethyl) adipate or bis-(2-hydroxyethyl) isophthalate and the reaction of free terephthalatic acid and ethylene glycol.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB903764A GB1027266A (en) | 1964-03-03 | 1964-03-03 | Production of linear polyesters of high molecular weight |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB903764A GB1027266A (en) | 1964-03-03 | 1964-03-03 | Production of linear polyesters of high molecular weight |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1027266A true GB1027266A (en) | 1966-04-27 |
Family
ID=9864178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB903764A Expired GB1027266A (en) | 1964-03-03 | 1964-03-03 | Production of linear polyesters of high molecular weight |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1027266A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4365054A (en) | 1975-08-11 | 1982-12-21 | The Firestone Tire & Rubber Company | Ethylene glycol terephthalate production |
EP1316585A1 (en) * | 2001-11-30 | 2003-06-04 | ARTEVA TECHNOLOGIES S.à.r.l. | Thermostable, antimony-free polyester, process for its preparation and its use |
-
1964
- 1964-03-03 GB GB903764A patent/GB1027266A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4365054A (en) | 1975-08-11 | 1982-12-21 | The Firestone Tire & Rubber Company | Ethylene glycol terephthalate production |
EP1316585A1 (en) * | 2001-11-30 | 2003-06-04 | ARTEVA TECHNOLOGIES S.à.r.l. | Thermostable, antimony-free polyester, process for its preparation and its use |
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