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    • 20. 发明申请
    • AQUEOUS COMPOSITIONS OF FLUORINATED SURFACTANTS AND METHODS OF USING THE SAME
    • 氟化表面活性剂的水性组合物及其使用方法
    • US20100168300A1
    • 2010-07-01
    • US12601143
    • 2008-05-21
    • Rudolf J. DamsMichael S. Terrazas
    • Rudolf J. DamsMichael S. Terrazas
    • C08K5/42C08K5/09
    • C11D1/004C09D5/027C09D7/45C09D7/47C09G1/04C11D3/37
    • Aqueous compositions comprising surfactant represented by a formula selected from the group consisting of: [Rf—(O)t—CHF—(CF2)n—COO−]iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—COO−}iXi+; {[Rf—(O)t—CQH—CF2—O]m—R—SO3−)i, Xi+; and [CF3CFH—O—(CF2)p—COO−]iXi+; wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with at least one oxygen atom; Q is selected from the group consisting of F and CF3; R is selected from the group consisting of alkylene and arylene; X1+ represents a cation having a valence i, wherein i is 1, 2 or 3; t is O or 1; m is 1, 2, or 3; n is O or 1; and p is an integer from 1 to 6. In some aspects, the aqueous composition comprises a non-fluorinated polymer and is essentially free of fluoropolymers. In another aspect, the aqueous composition has a pH of greater than 11. In another aspect, the aqueous composition has a pH of at least 8 and is essentially free of fluorinated olefins. Methods of coating a surface and an article having a surface in contact with the composition are provided. Methods of cleaning a surface, and methods of lowering the surface tension of a liquid having a pH greater than 11 using aqueous compositions comprising the surfactants are also provided.
    • 包含由选自以下的式的表面活性剂组成的水性组合物:[Rf-(O)t-CHF-(CF 2)n -CO 2 - ] i X i + {[Rf-(O)t-CQH-CF2-O] m -R-COO-} iXi +; {[Rf-(O)t-CQH-CF2-O] m -R-SO3-)i,Xi + 和[CF 3 CFH-O-(CF 2)p-COO-] i X i +; 其中Rf表示任选被至少一个氧原子间断的部分或完全氟化的脂族基团; Q选自F和CF 3; R选自亚烷基和亚芳基; X1 +表示具有i价的阳离子,其中i为1,2或3; t为O或1; m为1,2或3; n为0或1; 并且p是1至6的整数。在一些方面,水性组合物包含非氟化聚合物,并且基本上不含含氟聚合物。 另一方面,水性组合物的pH值大于11.另一方面,水性组合物的pH值至少为8,基本上不含氟化烯烃。 提供涂覆表面和具有与组合物接触的表面的制品的方法。 还提供了使用包含表面活性剂的水性组合物来清洁表面的方法和降低pH大于11的液体的表面张力的方法。