Oxo-hexameric zirconium-octaamino acid antiperspirant salts

Details Oxo-hexameric zirconium-octaamino acid antiperspirant salts Oxo-hexameric zirconium-octaamino acid antiperspirant salts

2011-03-01

2011-03-01

Gonzalez, Porfirio Nazario (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C424S065000, C424S066000

Reexamination Certificate

active

07897799

ABSTRACT:
A process for preparing oxo-hexameric zirconium-octaamino acid, such as glycine, salt comprising: mixing zirconium (Zr):amino acid:and mineral acid, in a molar ratio of 1:about 1 to about 15:about 1.5 to about 3 to form a mixture; optionally, filtering the mixture; and optionally, drying the mixture. An oxo-hexameric zirconium-octaamino acid salt of the molecular formula: oxo-[Zr6AminoAcid8].Xy.nH2O, wherein Zr is zirconium, X is an anion of a mineral acid, and n and y are numerical values from 0 to 20. A method of making an antiperspirant active zirconium-aluminum-amino acid compound comprising mixing an oxo-hexameric zirconium-octaamino acid salt with aluminum chlorohydrex and/or aluminum chloride, and drying the mixture. The smallest oxo-hexameric zirconium-octaamino acid salt of this invention provides stability, efficacy, and shelf life of zirconium-amino acid species for formulations in antiperspirant and/or deodorant compositions.

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