Perfluoropolyether additives

Details Perfluoropolyether additives Perfluoropolyether additives

C - Chemistry, Metallurgy

08

G

C08G 65/323 (2006.01) C08F 16/12 (2006.01) C08L 27/12 (2006.01) C10M 129/16 (2006.01) C10M 147/04 (2006.01) C10M 169/00 (2006.01) C10M 169/04 (2006.01) C10M 177/00 (2006.01)

Patent

CA 2467422

Compounds formed of (per)fluoropolyether chains and end groups having a pyridine structure, with structural formula: T1-CW1-O-R f-CW2-T2(I) wherein T1, T2, equal to or different from each other, have the following meanings: - F, CF3, C2F5, (C2F4)C1: - CH2-B-Y, CH (CF3) O-Y, wherein: - B = O, S; (see above formula) wherein R1, R2, R3, R4, equal to or different from each other, are H, F, C1-C8 linear or branched perfluoroalkyl, NO2, CN; with the proviso that at least one of the two end groups T1, T2 is CH2-B-Y or CH(CF3)O-Y as above defined; W1, W2, equal to or different from each other, are -F, -CF3; Rf is a (per)fluoropolyoxyalkylene chain having a number average molecular weight from 400 to 10,000.

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