| abstract |
A high efficiency antiperspirant / deodorant stick, free of added stearyl alcohol, and comprising, in weight percent based on the total weight of the composition: (a) 30-70% volatile cyclomethicone; (b) 10-25% of an active antiperspirant ingredient; (c) 1-15% of an emollient; (d) 1-14% polyethylene comprising one or more members selected from the group consisting of polyethylene homopolymers and copolymers, in which the polyethylene (i) is at least 90% linear; (ii) has a molecular weight in the range of 300-3000; (iii) has a melting point in the range of 50-129 ° C; and (iv) has a CH3CH2- (CH2-CH2) n-CH2-CH3 polymer backbone, where n is an average number, and is selected to be in the range of 10-106; (e) 0.3-7% of a wax as a co-gelling agent with polyethylene, in which the wax has a melting point in the range of 40-97 ° C; and (f) 1-40% of an elastomer in the cyclomethicone composition, which comprises a composition of a cross-linked dimethicone / vinyldimethicone polymer made by reacting (in the presence of a platinum catalyst) a poly (methyl-hydrogen-siloxane) ) with an alpha, omega-divinyl-poly (dimethyl-siloxane), whereby the composition (1) of the crosslinked dimethicone / vinyldimethicone polymer is used in a concentration of 4-10% in cyclomethicone, (2) has an index of refraction in the range of 1,392-1,402 at 25 ° C, and (3) has a viscosity in the range of 0.013-1 × 10 4 Paus; provided that the wax: polyethylene ratio is in the range of 1: 1 - 1:10. |