Use of polyoxyalkylene-polysiloxane copolymers with silicon-linked, long-chain alkyl radicals as emulsifiers for the preparation of water/oil emulsions

An emulsion prepared by the method comprising preparation of a water/oil emulsion wherein the oily phase is or contains silicone oil by mixing the oily phase with water in the presence of an emulsifier, the improvement which comprises said emulsifier being present in an emulsifying effective amount and being a copolymer having the average formula:

• ##STR4## in which R is an alkyl adical with 1 to 4 carbon atoms or a hydrogen radical;
• n=10 to 200;
• m=1 to 25;
• o=1 to 100 with the proviso that o is not less than m, and 3 o is less than n in the average molecule;
• p=7 to 17;
• and wherein the molecular weight of the (C.sub.2 H.sub.4 O--).sub.x (C.sub.3 H.sub.6 O--).sub.y R radical is 250 to 2,000 with x and y being selected so that the weight ratio of oxyethylene to oxyethylene to oxypropylene is 100:0 to 20:80.