Method for producing fluoroalkyl iodide telomer mixture and method for producing mixture fluorine-containing (meth) acrylate esters
A mixture of fluoroalkyl iodide telomers represented by the formula: R f (CF 2 CF 2 ) n I wherein R f represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree n equal to or more than k that is an integer of 3 or more, is obtained by react...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
11.03.2004
|
| Online Access | Get full text |
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| Summary: | A mixture of fluoroalkyl iodide telomers represented by the formula: R
f
(CF
2
CF
2
)
n
I wherein R
f
represents a fluoroalkyl group whose number of carbon atoms is in the range of 1 to 10, with the polymerization degree n equal to or more than k that is an integer of 3 or more, is obtained by reacting a fluoroalkyl iodide with tetrafluoroethylene in a first reactor followed by fractionating a first reaction mixture which contains fluoroalkyl iodide telomers of low polymerization degree, as well as by reacting the telomer with n of (k−1) separated from the first reaction mixture with tetrafluoroethylene in the second reactor. |
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