Organofunctional siloxanes, process for preparing same and their use for the treatment of fillings and surfaces

A method for the treatment of fillers comprising:

• 1) applying a silane coupling agent and drying at room temperature;
• 2) applying a functionalized hydrophilic fumed silica with a specific surface area of 200 m2/g and drying at room temperature;
• 3) applying an organofunctional siloxane selected from the group consisting of:
• an organofunctional siloxane having the formula (V)
• XR1SiR2(OSiR2)n+1OSiR3 (V)
• wherein
• X is selected from the group consisting of hydrogen, hydroxyl, aldehyde, acetate, amino, alkylimine, alkylamino, dialkylamino, diaminoalkyl, ureido, isocyanate, anhydride, epoxycyclohexyl, glycidoxy, mercapto, acryloxy, methacryloxy, methacrylamide, acrylamide, alkylamide, carboxylic acid, alkenyl, 2-hydroxy-3-(methacryloyloxy)propan-l-olate, alkyl, cycloalkyl, aryl, alkylaryl, arylalkyl, aryloxy, perfluoroalkyl, perfluoroaryl, alkylpolyalkylenoxy and hydroxypolyalkylenoxy;
• R is selected from the group consisting of halogen, hydrogen, hydroxyl, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl, alkylaryl and dialklyaryl, and alkoxy, acyloxy, alkyloyl, carbinoyl acyloxy group, alkylamine, dialkylamine, oximino and enoxy;
• R1is selected from the group consisting of methyl, ethyl, propyl, butyl, isobutyl, phenyl and phenethyl;
• and
• n is an integer having a value of 2 to 100,
• an organofunctional siloxane having the formula (VII)
• R3SiO(R2SiO)nSiR2R2SiR2(OSiR2)nOSiR3 (VII)
• wherein
• R is selected from the group consisting of hydrogen, hydroxyl, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl, alkylaryl, dialklyaryl, alkoxy, acyloxy, alkyloyl, carbinoyl acyloxy group, alkylamine, dialkylamine, oximino and enoxy;
• R2 is selected from the group consisting of methyl, ethyl, propyl, butyl, isobutyl, phenyl and phenethyl;
• and
• n is an integer having a value of 2 to 100, and
• an organofunctional siloxane having the formula (VIII)
• R3SiO(R2SiO)n(SiR2)R1SyR1(SiR2)(OSiR2)nOSiR3 (VIII)
• wherein
• R is selected from the group consisting of hydrogen, hydroxyl, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, arylalkyl, alkylaryl, dialklyaryl, alkoxy, acyloxy, alkyloyl, carbinoyl acyloxy group, alkylamine, dialkylamine, oximino and enoxy;
• R1 is selected from the group consisting of alkyl, cycloalkyl, aryl, arylalkyl, alkylaryl and dialklyaryl;
• n is an integer having a value of 2 to 100;
• and
• y is an integer having a value of 1 to 100,
• wherein the fillers are quartz, silica, glass, aluminium, clays, silicon, copper, tin, talc, inorganic oxides, steel, asbestos, nickel, zinc, lead, marble, gypsum, graphite or carbon.