| 主权项 |
1. A reactive composition comprising
(a) at least two different fluorosilanes each of the same general formula I
Rtf—SiX3 (formula I), wherein X is selected from the group of alkoxy, halide, oxime, carboxyl, phenoxide and polyether, and Rtf is a straight, branched or cyclic residue of the general formula II or III
—Y—Rf (formula II) or—Y—(SiR1R2O)xSiR1R2—Y—Rf (formula III), wherein Y is a moiety selected from the group of —(CH2)n—, —CO2—, —O—, —CONH—, —Ph—, —SO2—, and —SO2NH—, —(CH2)o—O—(CH2)m, —(CH2)o—CONH—(CH2)m, —(CH2)o—Ph—(CH2)m, —(CH2)oSO2—(CH2)m, —(CH2)o—SO2NH—(CH2)m, —SO2—O— and —SO2NH—, wherein o is an integer from 1 to 30, m is a number in the range from 0 to 30 and, wherein n is an integer from 1 to 30, Rf is a C2 to C7 linear or branched perfluoralkylene group, wherein the fluorosilanes differ in their number of carbon atoms in Rf at least by 2, R1 and R2 are independently selected from monovalent organic residues, x is an integer from 0 to 5, and (b) and at least one aminosilane of the general formula IV
Ra—SiR3R4R5 (formula IV), where Ra is a straight, branched or cyclic alkyl residue comprising 1 to 7 carbon atoms and at least one primary, secondary, ternary or quaternary amino-group, R3 and R4 are independently selected from —Ra, —OR6 and/or —R6, and R5 is —OR6, and R6 is a straight, branched or cyclic alkyl residue comprising 1 to 3 carbon atoms.
|
