Perfluoropolyethers and processes for preparing them

Details Perfluoropolyethers and processes for preparing them Perfluoropolyethers and processes for preparing them

C - Chemistry, Metallurgy

08

F

402/529, 204/91.

C08F 16/24 (2006.01) C08F 2/48 (2006.01) C08G 65/00 (2006.01) C08G 65/321 (2006.01) C08G 65/329 (2006.01)

Patent

CA 2037543

3995 "NEW PERFLUOROPOLYETHERS AND PROCESSES FOR PREPARING THEM" Abstract The invention relates to new peroxide perfluoro- polyethers having formula: (I) Image wherein: A and B are end groups, X represents a (R'0)mR" group where R' is selected from the class consisting of -CF2- , -CF2-CF2- and Image , and R" is a perfluoroalkyl group; the value of "m" ranging from 0 to 6. The invention relates also to processes for prepar- ing said perfluoropolyethers and other classes of non per- oxide perfluoropolyethers derived therefrom.

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