GB898309A - Tetrafluoroethylene telomers - Google Patents
Tetrafluoroethylene telomersInfo
- Publication number
- GB898309A GB898309A GB3396059A GB3396059A GB898309A GB 898309 A GB898309 A GB 898309A GB 3396059 A GB3396059 A GB 3396059A GB 3396059 A GB3396059 A GB 3396059A GB 898309 A GB898309 A GB 898309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- telomers
- mixture
- tetrafluoroethylene
- less
- sf5cl
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
- C08F214/26—Tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C381/00—Compounds containing carbon and sulfur and having functional groups not covered by groups C07C301/00 - C07C337/00
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
Telomers of the formula SF5(C2F4)nCl, where n is less than 12 are prepared by subjecting a mixture of tetrafluoroethylene and sulphur chloride pentafluoride to the action of heat in the absence of ultra-violet radiation. Telomerization may be effected at normal pressure, e.g. by passing the mixed vapours through a nickel tube heated to 200 DEG to 300 DEG C., and condensing the product in a series of traps, or at autogenous pressure in a sealed vessel, e.g. 150 to 250 atmospheres at 250 DEG C. Higher telomers may also be obtained when the mixture contains less than 3 molar per cent SF5Cl. Specification 877,961 is referred to.ALSO:Telomers of the formula SF5(C2F4)nCl, where n is less than 12, are prepared by subjecting a mixture of tetrafluoroethylene and sulphur chloride pentafluoride to the action of heat in the absence of ultraviolet radiation. Telomerisation may be effected at normal pressure, e.g. by passing the mixed vapours through a nickel tube heated to 200 DEG C. to 300 DEG C. and condensing the product in a series of traps, or at autogenous pressure in a sealed vessel, e.g. 150 to 250 atmospheres at 250 DEG C. The mixture should contain at least 3 molar per cent SF5Cl, lower concentrations giving higher telomers. Specification 877,961 is referred to.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL120196D NL120196C (en) | 1959-10-07 | ||
| BE595768D BE595768A (en) | 1959-10-07 | ||
| NL256615D NL256615A (en) | 1959-10-07 | ||
| GB3396059A GB898309A (en) | 1959-10-07 | 1959-10-07 | Tetrafluoroethylene telomers |
| FR840602A FR1272200A (en) | 1959-10-07 | 1960-10-07 | Production of tetrafluoroethylene and pentafluoro-sulfur chloride telomers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3396059A GB898309A (en) | 1959-10-07 | 1959-10-07 | Tetrafluoroethylene telomers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB898309A true GB898309A (en) | 1962-06-06 |
Family
ID=10359601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3396059A Expired GB898309A (en) | 1959-10-07 | 1959-10-07 | Tetrafluoroethylene telomers |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE595768A (en) |
| GB (1) | GB898309A (en) |
| NL (2) | NL256615A (en) |
-
0
- NL NL120196D patent/NL120196C/xx active
- NL NL256615D patent/NL256615A/xx unknown
- BE BE595768D patent/BE595768A/xx unknown
-
1959
- 1959-10-07 GB GB3396059A patent/GB898309A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE595768A (en) | |
| NL120196C (en) | |
| NL256615A (en) |
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