Drug – bio-affecting and body treating compositions – Anti-perspirants or perspiration deodorants – Zirconium compound containing
Patent
1987-09-14
1989-04-04
Shine, W. J.
Drug, bio-affecting and body treating compositions
Anti-perspirants or perspiration deodorants
Zirconium compound containing
424 65, 424 67, 424 68, A61K 734
Patent
active
048185221
ABSTRACT:
Antiperspirant formulations are provided in which water-immiscible adjuvants are encapsulated in thick-walled, hollow, substantially spherical particles of antiperspirant active, which is preferably a water-soluble compound or complex of a polyvalent metal or metals. The thick-walled particles resist rupture during normal handling and application of the antiperspirant formulation and provide slow release of the encapsulated adjuvant when the antiperspirant shell dissolves in perspiration. The adjuvant may be a fragrance, an antibacterial, antimicrobial or antifungal agent, a deodorant, or other dermatological preparation. The encapsulation is accomplished by emulsifying the adjuvant in an aqueous solution of the antiperspirant active, and spray drying the material in such a manner as to produce thick-walled, spherical particles with the liquid adjuvant in the hollow centers.
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Ferentchak Rudolph
Kozischek James F.
Reheis Inc.
Shine W. J.
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