| 摘要 |
<p>Non-ionic compound having the general formula: Rf-L-(OCHR1-CHR2)n-O-L'-Rf' wherein: n is an integer comprised between 4 and 60, preferably between 8 and 30; L and L', equal to or different from each other, can be selected from: -(CFY-CO-O)pR'- and -(CFY-CO-NH)pR'- wherein: p is 0 or 1; Y can be F or CF3; R' is an alkylic radical C1-C5, R1, R2 can be both H or the former one H and the latter CH3. Rf and Rf', equal to or different from each other, can be perfluoropolyethereal radicals having a number average molecular weight comprised between 250 and 1500, preferably between 400 and 1000; and its use as thickener of aqueous latexes based on fluoropolymers.</p> |
