C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 7/54 (2006.01) A61K 8/26 (2006.01) A61K 8/28 (2006.01) A61Q 15/00 (2006.01) C01F 7/56 (2006.01) C01F 7/66 (2006.01) C01G 25/00 (2006.01) C01G 25/04 (2006.01)
Patent
CA 2090861
Basic aluminum halides and nitrates having enhanced antiperspirant efficacy are produced by reacting (a) aluminum pow- der, (b) an aluminum halide or nitrate solution and (c) water at a temperature greater than about 85 °C. This reaction is main- tained until reaction products having an Al:anion ratio of about 1.2 to 1.8 and a solution solids concentration of about 30-40 wt.% on an anhydrous basis are obtained. The products are characterized as having a Size Exclusion Chromatography Test Band hav- ing a relative retention time corresponding to Band II of a Standard Basic Aluminum Chloride Size Exclusion Chromatogram and a Band II percent aluminum value of at least about 50 % and a Band III percent aluminum value of less than 20 %.
Parekh Jawahar C.
Rubino Andrew M.
Gowling Lafleur Henderson Llp
Reheis Inc.
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