Cosmetic products containing a soluble glass
Patent 5290544 Issued on March 1, 1994. Estimated Expiration Date: 
February 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 21, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1642089 Water soluble glass articles, their manufacture, and their use in the treatment of ruminant animals Protein and mineral water-containing cosmetic compositions Antimicrobial hydroxyapatite powders and methods for preparing them Apparatus for antimicrobial use Tableted powder cosmetics Patent #: 5063050 InventorsAssigneeApplicationNo. 838692 filed on 02/21/1992US Classes:424/63, LIVE SKIN COLORANT CONTAINING424/69, FACE OR BODY POWDERS FOR GROOMING, ADORNING, OR ABSORBING424/618SilverExaminersPrimary: Page, Thurman K.Assistant: Gardner, Sally Attorney, Agent or FirmForeign Patent References
International ClassesA61K 007/027A61K 007/035 Foreign Application Priority Data1991-02-22 JPAbstractA cosmetic product is provided which comprises particles of soluble glass having an average particle size of 20 μm or less which contains silver ions. The soluble glass has a rate of elusion of the silver ions in water of from 0.00001-50 mg per hour per gram of glass when the soluble glass has a particle size of 420-600 μm and the water has a temperature of 20° C. The silver ions provide an anti-bacterial and anti-mold effect for a prolonged period without skin irritation, thus insuring a high degree of safety. | |
