GB838663A - Manufacture of highly polymeric polymethylene terephthalates - Google Patents
Manufacture of highly polymeric polymethylene terephthalatesInfo
- Publication number
- GB838663A GB838663A GB31280/57A GB3128057A GB838663A GB 838663 A GB838663 A GB 838663A GB 31280/57 A GB31280/57 A GB 31280/57A GB 3128057 A GB3128057 A GB 3128057A GB 838663 A GB838663 A GB 838663A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terephthalate
- manufacture
- polymethylene terephthalates
- benzoic acid
- highly polymeric
- 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
- 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
-
- 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
- C08G63/80—Solid-state polycondensation
-
- 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
-
- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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
Viscosity-stabilized polymethylene terephthalates are made by polycondensing a bis-(hydroxyalkyl) terephthalate in the presence of o-benzoyl benzoic acid. In examples, polyethylene terephthalate was made by effecting ester-interchange between dimethyl terephthalate and ethylene glycol in the presence of calcium acetate and antimony oxide to form bis-(beta-hydroxyethyl) terephthalate, then adding phosphorous acid (to render the calcium acetate inactive), next adding o-benzoyl benzoic acid and finally effecting polycondensation at 280 DEG C. and under reduced pressure. Specification 578,079 is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE571796D BE571796A (en) | 1957-10-07 | ||
| GB31280/57A GB838663A (en) | 1957-10-07 | 1957-10-07 | Manufacture of highly polymeric polymethylene terephthalates |
| FR1211133D FR1211133A (en) | 1957-10-07 | 1958-10-07 | Manufacture of highly polymerized polymethylene terephthalates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB31280/57A GB838663A (en) | 1957-10-07 | 1957-10-07 | Manufacture of highly polymeric polymethylene terephthalates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB838663A true GB838663A (en) | 1960-06-22 |
Family
ID=10320764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31280/57A Expired GB838663A (en) | 1957-10-07 | 1957-10-07 | Manufacture of highly polymeric polymethylene terephthalates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB838663A (en) |
-
1957
- 1957-10-07 GB GB31280/57A patent/GB838663A/en not_active Expired
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