| abstract |
The object of the present invention is to improve the performance of surfactants, especially the surface tension in aqueous systems, and to increase fluorine effectiveness. The present invention relates to the following formula: R f — (CH 2 ) m —O—P (O) (OR) (O − M + ) [Wherein R f is —C 6 F 13 or C 7 F 15 , m is 2, R is C 6 -C 10 alkyl, M + is a Group 1 metal or ammonium ( NH x R 2 y ) + cation (wherein x + y = 4 and R 2 is C 1 -C 4 alkyl)], a method for reducing the surface tension of the medium, And a method for imparting blocking resistance to a substrate to be coated. [Selection figure] None |