Process for making an aminosiloxane polymer nanoemulsion

• Main Authors: Wimmer, Franz Xaver, Whiting, Patrick Brian, Selbertinger, Ernst, Becker, Richard, Merget, Markus, Sivik, Mark Robert, Broening, Harry William, Schuster, Stefanie, Vetter, Nicholas David, Fliter, Kristi Lynn
• Format: Patent
• Language: English; French; German
• Published: 14.06.2017
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The present invention provides a method of making a nanoemulsion comprising the steps of: a) solubilizing a silicone resin in an organic solvent system to yield a silicone resin solution concentration of 80% or less, wherein the organic solvent system comprises diethyleneglycol monobutyl ether and at least one additional solvent selected from the list consisting of monoalcohols, polyalcohols, ethers of monoalcohols, ethers of polyalcohols, fatty esters, Guerbet alcohols, isoparaffins, naphthols, glycol ethers or mixtures thereof, provided that if the additional solvent is a glycol ether it is not diethyleneglycol monobutyl ether; b) mixing the silicone resin solution from a) with an aminosiloxane polymer to obtain an aminosiloxane polymer:silicone resin mixture having ratio of about 20:1; c) allowing the aminosiloxane polymer:silicone resin mixture to age for at least about 6 hours at ambient temperature; d) adding the aminosiloxane polymer:silicone resin mixture to a vessel; e) optionally adding with agitation an additional organic solvent to the aminosiloxane polymer:silicone resin mixture; f) mixing until homogenous; g) adding a protonating agent; h) additionally adding an aqueous carrier in an amount to produce the desired concentration of emulsion; and a nanoemulsion preparable by said method.