ALUMINUM COMPOSITIONS OF ENHANCED EFFICACY HAVING HIGH HPLC BANDS IL L AND IV

摘要

Novel aluminum antiperspiram compositions of enhanced efficacy activated by both heat and acid are produced comprising basic aluminum salts of having the formula: Al2(OH)6-aXa wherein X is CI-, Br-, I -, or NO3 -. a is from abut 1.1 10 about 1.7, with basic aluminum chloride being the preferred salt. When analyzed by SEC-HPLC at: about 10% concentration (i.e., by 2% A1 ) in water, these compositions exhibit an SEC-HPLC Band I area of less than 10%, a Band III area of at 'least 20%, with a Band III/II area ratio of at l east 0.7. a Band IV area of at least 20%, and have at least 60% aluminum species contained in Bands III and Band IV.