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US 2021/0171680 A1Published application
Branched perfluorovinyl ether compounds, methods of making the same, and fluoropolymers derived from the branched perfluorovinyl ether compounds
Assignee3M Innovative Properties Company
InventorsMiguel A. Guerra, Michael G. Costello, Tatsuo Fukushi
Life of this patent
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Abstract
Described herein is method of making branched perfluorinated compounds, specifically (CF3)2CFCF(CF3)OCF(CF3)C(═O)F and (CF3)2CFCF(CF3)OCF═CF2. Also disclosed herein is a fluoropolymer derived from the branched perfluorovinyl ether monomer and methods of making the fluoropolymer.
Claims14
A method of making a compound, the method comprising:
- contacting (CF3)2CF—C(═O)—CF3 with hexafluoropropylene oxide in the presence of a metal fluoride catalyst and an aprotic solvent to form an acid fluoride of (CF3)2CFCF(CF3)OCF(CF3)C(═O)F.
A composition comprising a vinyl ether compound of the formula (CF3)2CFCF(CF3)OCF═CF2.
A method of making a fluoropolymer comprising:
- reacting (CF3)2CFCF(CF3)OCF═CF2 with a free radical initiator.
Dependencies are inferred from the claim text.