Drug – bio-affecting and body treating compositions – Anti-perspirants or perspiration deodorants – Zirconium compound containing
Patent
1979-01-08
1980-09-16
Ore, Dale R.
Drug, bio-affecting and body treating compositions
Anti-perspirants or perspiration deodorants
Zirconium compound containing
2604293, 424 46, 424 47, A61K 734, C07F 700
Patent
active
042230101
ABSTRACT:
Basic zirconium gels may be used to form complexes with conventional aluminum and/or zirconium antiperspirant systems. The freshly prepared basic zirconium gels provide both a buffer for the highly acidic aluminum-zirconium complexes and an additional source of zirconium as an active ingredient in the antiperspirant. The preferred basic zirconium gels are basic zirconium-amino acid compounds, particularly basic zirconium glycinates, and the compounds are preferably added to aluminum-zirconium systems in the form of a wet gel. The preferred basic zirconium glycinate is formed by first reacting sodium carbonate with glycine, and then reacting the resulting sodium glycinate with a zirconium oxy or zirconium hydroxy compound to precipitate out the zirconium basic glycinate gel. Zirconium basic carbonates, prepared by reacting sodium carbonate with a zirconium oxy or hydroxy salt, are useful in preparing antiperspirant complexes with lower basic aluminum chlorides (e.g. 1/3 or 2/3 basic), as well as the highly acidic aluminum chloride. Buffers such as urea, amino acids, salts of amino acids, magnesium carbonate, etc. may also be included in the complexes to maintain a pH of at least about 3 in aqueous solutions of the complex. The various complexes of the invention may be used in conventional antiperspirant forms, including aqueous solutions, aerosol sprays, powder-in-oil aerosol sprays, creams, lotions, cream sticks, etc.
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Bretschneider Edward S.
Jones John L.
Rubino Andrew M.
Armour Pharmaceutical Company
Ore Dale R.
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