Antiperspirant stick
AssigneeThe Procter & Gamble Company
InventorWalter Hugh Elsnau
Life of this patent
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Abstract
A very effective antiperspirant composition in the form of a stick comprising from abouyt 1% to about 20% of a water-insoluble wax, from about 20% to about 50% of an essentially water-insoluble, but water-dispersible, liquid emollient, and from about 30% to about 60% of an activealuminum or zirconium astringent antiperspirant salt in the form of finely divided particles, said composition being essentially water-insoluble with the exception of the active particles.
Claims7
A stick antiperspirant composition essentially anhydrous and comprising essentially water-insoluble materials and a water-soluble antiperspirant salt, said composition comprising
- A. from about 1% to about 20% of a high melting point water-insoluble wax which has a melting point of from about 150.degree. F. to about 215.degree. F. and which is selected from the group consisting of beeswax, spermaceti, carnauba, bayberry, candelilla, montan, ozokerite, ceresin, paraffin, synthetic wax and microcrystalline wax;
- B. from about 20% to about 50% of a liquid, non-toxic, non-irritating organic emollient compound having a water-solubility of from about 0.0005% to about 1% at 72.degree. F.;
- and
- C. from about 30% to about 60% of a compound having antiperspirant activity selected from the group consisting of
- i. aluminium chlorhydroxide,
- ii. aluminium hydroxybromide,
- iii. mixtures of aluminum chlorhydroxide and aluminium chloride, and
- iv. antiperspirant complexes formed by
- a. co-dissolving in water
- 1. one part Al.sub.2 (OH).sub.6-m X.sub.m, wherein X is an anion selected from the group consisting of chloride, bromide and iodide and m is a number from about 0.8 to about 1.2;
- 2.
A stick antiperspirant composition essentially anhydrous and comprising essentially water-insoluble materials and a water-soluble antiperspirant salt, said composition comprising
- A. from about 1% to about 20% of a high melting point water-insoluble wax which has a melting point of from about 150.degree. F. to about 215.degree. F. and which is selected from the group consisting of white beeswax, ceresin, ozokerite and synthetic waxes;
- B. from about 30% to 50% of a liquid emollient selected from the group consisting of isopropyl myristate, isopropyl palmitate and the condensation product of about 14 moles of propylene oxide with one mole of butyl alcohol;
- C. from about 30% to 50% of an impalpable powdered antiperspirant active compound selected from the group consisting of aluminium chlorhydroxide, aluminum hydroxybromide, mixtures of aluminium chlorhydroxide and aluminum chloride and complexes formed from zirconium hydroxychloride, aluminium chlorhydroxide and glycine;
- and
- D. from about 5% to 15% of a low melting point waxy material which has a melting point of from about 100.degree. F. to about 150.degree. F. and which is selected from the group consisting of cetyl alcohol, stearyl alcohol, myristyl alcohol, lauryl alcohol and glycerol monostearate.
Dependencies are inferred from the claim text.