Aqueous silicone emulsions ranging from fine particle emulsions up to optically clear silicone emulsions

Claim 1

Process for manufacturing finely-divided to optically clear thermally and mechanically stable silicone emulsions containing a) emulsifiers, b) aminoalkyl-substituted polysiloxanes, c) acids and d) water, characterised in that a silicone emulsion is produced which consists of a mixture of 3 to 25, preferably 8 to 12, parts by weight of an emulsifier soluble in water yielding a clear to transparent aqueous solution (constituent a), 0.1 to 84 ports by weight of at least one aminoalkyl-substituted polysiloxane with an amine number of at least 0.1, and preferably 0.3 (constituent b), 0.05 to 3.05, especially 0.10 to 1.1, and preferably 0.3 to 0.7, ports by weight of an acid, preferably a low molecular weight organic acid (based on 100% strength acid) (constituent c), and 5 to 96.85 parts by weight of water (constituent d), whereby the sum of the amounts of constituents a), b) and d) and of the amount of constituent c) used for pH-value adjustment, totals 100 parts by weight, whereby the ratio of emulsifier to siloxane is at least 1.2 to 10, wherein a mixture containing at least the constituents a) and d), is heated to a temperature of at least 50°C with stirring, until a homogeneous phase has been formed and is then cooled if need be, and wherein a pH-value of 3.0 to 7.0 is established by adding constituent c) before or after heating.