Antiperspirant compositions

Claim 1

An improved water-in-oil antiperspirant emulsion composition having a reduced whitening effect on skin, and including: (a) from about 89.5 to about 50 parts by weight of an aqueous solution of an astringent as a discontinuous phase; (b) from about 10 to about 45 parts by weight of a volatile liquid having a normal boiling point of less than 250° C. as a continuous phase, said volatile liquid being selected from the group consisting of methylsiloxane fluids having the average unit formula (CH.sub.3).sub.a SiO.sub.(4-a)/2 wherein a has an average value of from 2 to 3, inclusive; (c) from about 0.1 to about 3 parts by weight of an organic oil-in-water surfactant having an HLB value of from 8 to 18 inclusive, wherein the improvement comprises (d) from about 0.4 to about 6 parts by weight of a polyorganosiloxane-polyoxyalkylene copolymer of the formula MD.sub.x D'.sub.y D".sub.z M wherein D is (CH 3 ) 2 SiO 2/2 , D' is (CH 3 )R 1 SiO 2/2 , where R 1 is an alkyl group having from 6 to 30 carbon atoms, D" is (CH 3 )R 2 SiO 2/2 , where R 2 is a polyoxyalkylene ether residue of the formula --(R.sup.4).sub.p --(OR.sup.3).sub.n --OR.sup.5 wherein each individual R 3 is an alkylene radical having 2 to 6 carbon atoms, R 4 is an alkylene radical having 2 to 20 carbon atoms, R 5 is hydrogen or an hydrocarbon radical of from 1 to about 12 carbon atoms, n has a value from about 5 to about 20, and p has a value of zero or 1, M is (CH 3 ) 2 R 6 SIO 2/2 , where R 6 may be an alkyl group having from 1 to 30 carbon atoms or R 2 , x has an average value of from about 10 to about 400, y has an average value of from 1 to about 200, and z has an average value of from 1 to about 100, and x+y+z has an average value of from about 12 to about 400, with the proviso that the weight ratio of R 2 to polysiloxane absent R 2 is from greater than 15/85 to less than 35/65; and the total of (a)+(b)+(c)+(d) being 100 parts by weight.