Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Victor Filippovich Cherstkov0
Nina Ivanova Delyagina0
Paul R. Resnick0
Richard E. Fernandez0
Viacheslav A. Petrov0
Date of Patent
October 2, 2007
0Patent Application Number
104350030
Date Filed
May 9, 2003
0Patent Primary Examiner
Patent abstract
Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2═C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2═C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
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