Claims
- 1. A process for the preparation of halogenated polyethers of the formula: ##STR5## wherein: R.sub.F and R'.sub.F, either equal to or different from each other, are fluorinated alkyl radicals having from 1 to 20 carbon atoms; said process consisting in reacting a fluoroxy compound of the formula R'.sub.F OF with a flourovinylether of the formula R.sub.F O--CF.dbd.CF.sub.2, wherein R.sub.F and R'.sub.F are defined as above, at a temperature between -30.degree. C. and -100.degree. C., in the liquid phase in the presence of an inert solvent selected from chlorofluorohydrocarbons or perfluorohydrocarbons.
- 2. The process according to claim 1, wherein the fluoroxy compound is fed into the liquid reaction phase in a continuous way, in gaseous form, optionally diluted with an inert gas.
- 3. The process according to claim 1, wherein R'.sub.F is a perfluoromethyl radical.
- 4. The process according to claim 1, wherein R.sub.F is a perfluoropropyl radical.
Priority Claims (1)
Number |
Date |
Country |
Kind |
22347 A/86 |
Nov 1986 |
ITX |
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Parent Case Info
This is a continuation of co-pending application Ser. No. 07/860,598, filed on Mar. 30, 1992 now abandoned; which is a continuation of application Ser. No. 07/693,020, filed on Apr. 30, 1991, now abandoned; which is a continuation of application Ser. No. 07/546,701, filed on Jul. 3, 1990, now abandoned; which is a continuation of application Ser. No. 07/361,776, filed May 26, 1989, now abandoned; which is a continuation of application Ser. No. 07/119,169, filed Nov. 10, 1987, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4577044 |
Campbell et al. |
Mar 1986 |
|
Foreign Referenced Citations (4)
Number |
Date |
Country |
201871 |
Nov 1986 |
EPX |
267626 |
May 1988 |
EPX |
267627 |
May 1988 |
EPX |
863504 |
Nov 1986 |
ZAX |
Non-Patent Literature Citations (2)
Entry |
South African Patent Journal, Dec. 1986 vol. 19, No. 12 p. 174 & Computer Readout from WPIL. |
Kamil et al. Inorg, Chem., 1986 25, 376-380. |
Continuations (5)
|
Number |
Date |
Country |
Parent |
860598 |
Mar 1992 |
|
Parent |
693020 |
Apr 1991 |
|
Parent |
546701 |
Jul 1990 |
|
Parent |
361776 |
May 1989 |
|
Parent |
119169 |
Nov 1987 |
|