A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/310
A61K 47/00 (2006.01) A61K 8/06 (2006.01) A61K 8/58 (2006.01) A61K 8/898 (2006.01) A61Q 5/12 (2006.01) A61Q 15/00 (2006.01) A61Q 17/04 (2006.01) A61Q 19/00 (2006.01) C08K 5/549 (2006.01) C08L 83/12 (2006.01)
Patent
CA 1256381
WATER-IN-VOLATILE SILICONE EMULSIFIER CONCENTRATES, WATER-IN-VOLATILE SILICONE EMULSIONS THAT ARE USEFUL IN PERSONAL-CARE FORMULATIONS AND METHODS OF MAKING SAME ABSTRACT OF THE DISCLOSURE Water-in-volatile silicone emulsifier concentrates containing 2 to 30 wt. % water in the internal phase, 40 to 90 wt. % of a volatile cyclic silicone liquid such as the octamethylsiloxane cyclic tetramer, decamethyl- siloxane cyclic pentamer or the dodecamethylsiloxane cyclic hexamer and 5 to 40 wt. % of a polyoxyalkylene substituted silicone containing per molecule 5 to 100 dialkylsiloxy units, two trialkylsiloxy end blocking units and 1 to 16 polyoxyalkylene substituted alkylsiloxy units of the average formula: Image in which R is an alkyl group having 1 to 4 carbon atoms and R can individually be the same or different, wherein R° is a terminal group selected from the class consisting of hydrogen, alkyl, aryl, aralkyl and acyl radicals, n is an integer of 2 to 8, a is a number of 5 to 20 and b is 2 or 3. Said emulsifier concentrates are highly useful in preparing water-in-silicone personal-care emulsions by simply mixing same with desired personal-care components soluble therein followed by mixing with water in which water soluble personal-care components may be mixed. The personal-care components include the well known materials such as emollients, film formers, sun screen agents, moisture barriers, anti-perspirants and the like. Processes are also described for preparing the water-in-silicone emulsifier concentrates and emulsions mentioned above. S P E C I F I C A T I O N
473967
Sim & Mcburney
Union Carbide Corporation
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