C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 323/00 (2006.01) C10M 105/54 (2006.01) C10M 107/38 (2006.01)
Patent
CA 2110045
This invention concerns a cyclic ether of the formula ]CF2CFHOR4CF2CH2O]q wherein R4 is perfluoroalkylene and q is 2, 3 or 4. In preferred cyclic ethers, R4 is -[CF2CF(CF3)O]t(CF2)u-, wherein u is 1 to 10 and t is 1 to 20, and it is especially preferred if t is 1 and u is 1. The cyclic ethers are useful as lubricants. They may also be fluorinated to form perfluorinated cyclic ethers which are useful as lubricants and heat transfer fluids.
Farnham William Brown
Hung Ming-Hong
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
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