| 摘要 |
Dispersions of fluorinated polymers substantially free from fluorinated surfactants, having high stability to shear combined with high stability to segregation, said dispersions comprising one or more anionic surfactants having the following general formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>Y'-(P1)n-CH(Y)-(P2)n'-Y'' (1)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein: Y, Y' and Y'' are anionic or nonionic groups, with the proviso that at least one of Y, Y' or Y'' is an anionic group and at least one of the remaining of Y, Y' or Y'' is a nonionic group; p1 and p2, equal or different, are linear or branched alkylene groups, optionally containing one or more unsaturations, having a number of carbon atoms from 1 to 10, preferably from 1 to 6; n and n' equal or different, are zero or 1.
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