Patent ID: 6207720
Filing Date: 2001-03-27
Classification: B01F,Y10S

Abstract:
A process for preparing an oil-in-water emulsion comprising at least one hydrolyzable silane, at least one emulsifier, and water, comprising the steps of:I) dispersing at least one emulsifier in water at a weight ratio of 1.5:1.0 to about 1.0:4.0;II) preparing an oil concentrate by mixing said emulsifier and water blend with at least one hydrolyzable silane having the general formula:R.sup.1.sub.a R.sup.2.sub.b Si(OR.sup.3)[4-a-b].sub.4-a-bwhereinR.sup.1 is a hetero atom substituted hydrocarbon group;R.sup.2 is independently an unsubstituted hydrocarbon group;R.sup.3 is an alkyl, alkoxyalkyl, aryl or aralkyl radical having from 2 to 10 carbon atoms; anda is 0 to 3, b is 0 to 2;with the proviso that a+b=1,2 or 3; and each R group is cyclic, branched or linear; andsuch that said oil concentrate comprises about 1 part to about 28 parts of said emulsifier and about 1 part to about 55 parts water, per 100 parts of said at least one hydrolyzable silane andIII) slowly adding water to said oil concentrate until inversion of said oil concentrate occurs.