The Gillette Company

Other

Richard Oryszczak

Angel L Carrillo

Yan-Fei Shen

Stephen J Provancal

Jayant N Sane

Thomas J Fluhler

Nancy M Karassik

Philip P Angelone, Jr

Yanfei Shen

Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions that have a metal (Al+Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. These salts also typically exhibit an HPLC peak 5 area content of about 33% or more, preferably at least 45%, more preferably at least 50%, most preferably at least 55%. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4, preferably at least 0.7. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.

Aluminum-zirconium antiperspirant salts with low M:CI ratio

Disclosed are enhanced efficacy aluminum-zirconium chlorohydrate antiperspirant salts having a metal (Al&plus;Zr) to chloride ratio of about 0.9 to about 1.2, preferably about 0.9 to about 1.1, most preferably about 0.9 to about 1.0. To achieve the highest possible antiperspirant efficacy, these salts are made with or include a zirconium hydroxychloride of the formula Zr(OH) Cl wherein b is about 2.8 to about 4.0, preferably about 3.2 to about 4.0, so that the Zr:Cl ratio in said zirconium hydroxychloride is about 0.36 to about 0.25, preferably about 0.31 to about 0.25. The present invention also embraces methods of making such antiperspirant salts and aqueous solutions of such antiperspirant salts. The present invention further embraces topical compositions comprising a dermatologically acceptable carrier and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt as described above.

Aluminum-zirconium antiperspirant salts made with zirconium salts having low Zr:Cl ratio

Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions which exhibit an HPLC peak 5 area content of about 33% or more, preferably at least 45%, more preferably at least 50%, most preferably at least 55%. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4, preferably at least 0.7. The aforementioned salt compositions will preferably have a metal (Al&plus;Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.

Aluminum-zirconium antiperspirant salts with high peak 5 Al content

Disclosed are enhanced efficacy aluminum-zirconium antiperspirant salt compositions which exhibit an HPLC peak 5 area content of about 33% or more. Especially preferred are aluminum-zirconium antiperspirant salt compositions which, in addition to the aforementioned high peak 5 content, also exhibit an HPLC peak 4 to peak 3 area ratio of at least 0.4. The aforementioned salt compositions will preferably have a metal (Al&plus;Zr) to chloride (or anion) ratio of about 0.90 to about 1.00. Also disclosed are methods of making such antiperspirant salt compositions and aqueous solutions of such antiperspirant salt compositions. Further disclosed are topical compositions comprising a dermatologically acceptable carrier vehicle and a perspiration reducing effective amount of an aluminum-zirconium antiperspirant salt composition as described above.

Aluminum-zirconium antiperspirant salts with high peak 5 al content

A method of making an antiperspirant powder is provided, including mixing a silicone rubber powder solution with an antiperspirant salt in a liquid carrier to form a uniform liquid mixture; and drying the liquid mixture to form an antiperspirant powder.

Method of making antiperspirant powders

The present invention comprises a process of preparing a solution of an enhanced efficacy aluminum antiperspirant salt in a polyhydric alcohol by

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Palatine, IL, United States of America

Richard Oryszczak