GB1082127A - Preparation of perfluoroolefins - Google Patents
Preparation of perfluoroolefinsInfo
- Publication number
- GB1082127A GB1082127A GB1499265A GB1499265A GB1082127A GB 1082127 A GB1082127 A GB 1082127A GB 1499265 A GB1499265 A GB 1499265A GB 1499265 A GB1499265 A GB 1499265A GB 1082127 A GB1082127 A GB 1082127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oligomers
- perfluoroolefins
- tetrafluoroethylene
- fluorides
- compounds
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
- C07C17/272—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions
- C07C17/278—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons
- C07C17/281—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by addition reactions of only halogenated hydrocarbons of only one compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Tires In General (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention comprises branched, internally unsaturated perfluoroolefins that are oligomers of tetrafluoroethylene having the empirical formula (C2F4)n where n is an integer of at leas 4. The compounds are prepared by contacting tetrafluoroethylene under anhydrous conditions with at least one fluoride source selected from fluorides of K, Rb, Cs and quaternary ammonium radicals, acid fluorides of K, Rb and Cs, and fluorosalts of K, Rb and Cs that are sources of fluoride ions. Examples describe compounds wherein n is 4, 5, 6 and 7, perfluorobutenes being formed as a by-product in Example 18. The oligomers may be oxidized by KMnO4 in acetone to give CF3H and CF3CF2COOH.
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL132821D NL132821C (en) | 1965-04-08 | ||
GB1499265A GB1082127A (en) | 1965-04-08 | 1965-04-08 | Preparation of perfluoroolefins |
NO16227266A NO116909B (en) | 1965-04-08 | 1966-03-23 | |
IL2546066A IL25460A (en) | 1965-04-08 | 1966-03-25 | Preparation of perfluoroolefins |
NL6604357A NL6604357A (en) | 1965-04-08 | 1966-04-01 | |
DK175666A DK119402B (en) | 1965-04-08 | 1966-04-04 | PROCEDURE FOR PREPARING BRANCHED TETRAFLUOROTHEHYLENIGOMERS |
SE452266A SE345439B (en) | 1965-04-08 | 1966-04-04 | |
CH495966A CH529704A (en) | 1965-04-08 | 1966-04-05 | Branched internally unsaturated perfluoro-olefins by |
ES0325244A ES325244A1 (en) | 1965-04-08 | 1966-04-06 | Procedure for elaborating tetrafluorethylene oligomers. (Machine-translation by Google Translate, not legally binding) |
DE19661568829 DE1568829A1 (en) | 1965-04-08 | 1966-04-07 | Process for the production of branched internally unsaturated perfluoroolefins |
FR57087A FR1475360A (en) | 1965-04-08 | 1966-04-08 | Manufacturing process for perfluoroolefins |
BE679337A BE679337A (en) | 1965-04-08 | 1966-04-08 | |
NL7003038A NL7003038A (en) | 1965-04-08 | 1970-03-03 | |
DE2009967A DE2009967C3 (en) | 1965-04-08 | 1970-03-03 | Process for the preparation of tetrafluoroethylene oligomers |
US05/571,770 US4016217A (en) | 1965-04-08 | 1975-04-25 | Preparation of perfluoroolefines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1499265A GB1082127A (en) | 1965-04-08 | 1965-04-08 | Preparation of perfluoroolefins |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1082127A true GB1082127A (en) | 1967-09-06 |
Family
ID=10051163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1499265A Expired GB1082127A (en) | 1965-04-08 | 1965-04-08 | Preparation of perfluoroolefins |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE679337A (en) |
CH (1) | CH529704A (en) |
DE (1) | DE1568829A1 (en) |
DK (1) | DK119402B (en) |
ES (1) | ES325244A1 (en) |
GB (1) | GB1082127A (en) |
IL (1) | IL25460A (en) |
NL (2) | NL6604357A (en) |
NO (1) | NO116909B (en) |
SE (1) | SE345439B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549716A (en) * | 1968-01-11 | 1970-12-22 | Ici Ltd | Preparation of perfluoroolefins |
US3758618A (en) * | 1969-03-03 | 1973-09-11 | Ici Ltd | Production of tetrafluoroethylene oligomers |
US5928557A (en) * | 1992-04-09 | 1999-07-27 | Minnesota Mining And Manufacturing Company | Lubricants for compressor fluids |
-
0
- NL NL132821D patent/NL132821C/xx active
-
1965
- 1965-04-08 GB GB1499265A patent/GB1082127A/en not_active Expired
-
1966
- 1966-03-23 NO NO16227266A patent/NO116909B/no unknown
- 1966-03-25 IL IL2546066A patent/IL25460A/en unknown
- 1966-04-01 NL NL6604357A patent/NL6604357A/xx unknown
- 1966-04-04 DK DK175666A patent/DK119402B/en unknown
- 1966-04-04 SE SE452266A patent/SE345439B/xx unknown
- 1966-04-05 CH CH495966A patent/CH529704A/en not_active IP Right Cessation
- 1966-04-06 ES ES0325244A patent/ES325244A1/en not_active Expired
- 1966-04-07 DE DE19661568829 patent/DE1568829A1/en not_active Withdrawn
- 1966-04-08 BE BE679337A patent/BE679337A/xx unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549716A (en) * | 1968-01-11 | 1970-12-22 | Ici Ltd | Preparation of perfluoroolefins |
US3758618A (en) * | 1969-03-03 | 1973-09-11 | Ici Ltd | Production of tetrafluoroethylene oligomers |
US5928557A (en) * | 1992-04-09 | 1999-07-27 | Minnesota Mining And Manufacturing Company | Lubricants for compressor fluids |
Also Published As
Publication number | Publication date |
---|---|
NL6604357A (en) | 1966-10-10 |
DK119402B (en) | 1970-12-28 |
ES325244A1 (en) | 1967-01-01 |
NO116909B (en) | 1969-06-09 |
DE1568829A1 (en) | 1970-04-02 |
SE345439B (en) | 1972-05-29 |
BE679337A (en) | 1966-10-10 |
IL25460A (en) | 1970-02-19 |
CH529704A (en) | 1972-10-31 |
NL132821C (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1034196A (en) | Fluorocarbon ether-acids and derivatives thereof, and their preparation | |
IT1070281B (en) | GLYCIDOL CONDENSATION PRODUCTS WITH GREASE CHAIN DIGLYCOLAMIDS..PARTICULARLY USEFUL AS SURFACTANTS..and PROCEDURE FOR THEIR PREPARATION | |
IT990818B (en) | COMPOSITIONS OF STABILIZED HYDROGEN PEROXIDE CONTAINING AMMONIUM IONS AND THE BLANKING PROCESS WITH SUCH COMPOSITIONS | |
GB1185564A (en) | Improvements relating to Perfluorinated Ethers | |
GB1082127A (en) | Preparation of perfluoroolefins | |
GB998235A (en) | Process for preparing perfluoroalkyl iodides | |
NL139072B (en) | PROCESS FOR THE STABILIZATION OF POLYURETHAN FABRICS, INCLUDING FOAMS, AGAINST COLORATION AND OXIDATION BY NITROGEN CONTAINS. | |
SE407869B (en) | ELECTRON TUBE, AS WELL AS MANUFACTURE OF THE TUBE | |
BE598815A (en) | Chloroprene production | |
BE592066A (en) | A process for the production of yarns suitable for weaving purposes based on linear polycondensation products, as well as the yarns thus obtained. | |
BR7503872A (en) | PROCESS FOR THE PRODUCTION OF 3,6-BIS- (2-METIL-MERCAPTO-ETIL-2,5-PIPERAZINDIONA) | |
GB1094446A (en) | Substituted hydroxyethylsulphonyl fatty acid amides and methods of making them | |
IT1027379B (en) | PROCEDURE FOR THE PREPARATION OF TETRAKIS .1,2,3,4, PERFLUOROALKYL, 1,3, BUTADIENES | |
GB1127045A (en) | Adducts of tetrafluoroethylene | |
GB1005610A (en) | Preparation of telomers of tetrafluoroethylene | |
GB1239238A (en) | ||
NL7504696A (en) | PROCESS FOR THE PREPARATION OF BIS (2-PYRIDYL--1-OXIDE) DISULPHIDE. | |
DK115397B (en) | Process for the preparation of N-benzyl-N ', N' '-dimethylguanidine or an acid additive salt thereof. | |
GB1112350A (en) | Preparation of perfluoroalkoxides | |
GB1011494A (en) | Preparation of fluorocarbons | |
IT1049861B (en) | PROCESS FOR THE PREPARATION OF 4 CHLORINE 2.5 DIMETOXYANILINE | |
LIPSON | Symbolic methods for the computer solution of linear equations with applications to flowgraphs(Symbolic method for solving linear equations of flow graphs by multivariate polynomial extension of two-step integer-preserving elimination algorithm) | |
BR6346802D0 (en) | PROCESS TO PREPARE COMPOUNDS OF BIS (DIMETHYL-STARCH) PHOSPHORYL-AMINO-TRIAZOL-1,2,4 AND BIOCIDAL COMPOSITIONS BASED ON THEM | |
BE598968A (en) | Process for the preparation of gelled resins with thixotropic character produced by the resultant and their applications | |
DK113288B (en) | Process for the preparation of dicumyl peroxide, bis- (p-chlorocumyl) or bis- (3,4-dichlorocumyl) peroxide. |