http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1139119-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-278 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-278 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-16 |
| filingDate | 1967-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1139119-A |
| titleOfInvention | Perfluoroalkyl fluoro-iodides |
| abstract | 1,139,119. Perfluorcalkyl fluoro-iodides and their use as telomerization catalysts. E. I. DU PONT DE NEMOURS & CO. 1 May, 1967 [2 May, 1966], No. 20006/67, Heading C2C. Compounds having the empirical formula R f IF x , where R f is a C 2-22 perfluoroalkyl radical and x is 2 or 4, may be obtained by reacting a perfluoroalkyl iodide of the formula R f I with ClF 3 , BrF 3 or BrF 5 at a temperature of - 110 to 0 C. under anhydrous conditions in the liquid phase, optionally in an inert solvent, and the fluorinating agent may be employed in a stream of an inert carrier gas. The above compounds may be employed as initiators in the preparation of perfluoroalkyl iodide telomers by reacting a perfluoroalkyl iodide of the formula R<SP>1</SP> f I with an olefin of the formula (R<SP>1</SP>) 2 C=CR<SP>1</SP>R<SP>2</SP> under anhydrous conditions in the liquid phase in the presence of R f IF x and at a temperature of from - 40 C. to 140 C. and recovering telomers of the formula R f <SP>1</SP>-[-C(R<SP>1</SP>) 2 CR<SP>1</SP>R<SP>2</SP>-]- r I, where R<SP>1</SP>f is C 2-22 perfluoroalkyl, R<SP>1</SP> is hydrogen or fluorine, R<SP>2</SP> is hydrogen, fluorine, alkyl or polyfluoroalkyl and r is an integer of at least one. The telomerization reaction is optionally effected in the presence of an inert solvent, and the initiator may be formed in situ, suitable olefins being ethylene, tetrafluoroethylene, vinyl fluoride, vinylidene fluoride, 3,3,3-trifluoro-1-propene, pentafluoroethyl ethylene, n - heptafluoropropyl ethylene, propylene, 1-butene, 1- pentene, trifluoroethylene, hexafluoropropylene and perfluoro-1-butene. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100340211-B1 |
| priorityDate | 1966-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.