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Publication Date: 2005-Jun-06

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Personal care and home care compositions are disclosed, which include silver dihydrogen citrate. The inventive compositions advantageously take the form of suspensions, pastes, liquids and gels. The inventive compositions also optionally comprise additional ingredients, and are therefore suitable for a wide variety of personal, home and industrial care purposes.

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    This application is a continuation-in-part of U.S. Application Serial Number 10/936,465, filed September 7, 2004, which is incorporated herein by reference.


[1] The present invention relates to personal care and home care products containing antimicrobial compositions and, more specifically, to silver dihydrogen citrate-containing antimicrobial compositions.


[2] Consumers use a variety of personal care products for the enhancement or maintenance of health and personal appearance. Such products find use, for example, in skin care; as antiperspirants and deodorants; as personal cleansers; in hair care; as oral care products; and as decorative cosmetics. Such products often include antimicrobial agents, which serve to kill or control the growth of undesirable microbes such as bacteria, fungi and viruses. Antimicrobial agents are often employed in such divergent products as deodorant sprays, foot treatments and toothpastes, to name but a few. Antimicrobial agents may be used as preservatives to prevent the growth of bacteria which may contaminate deodorants or cosmetics, for example upon contact with the skin. Alternatively, the antimicrobial effect of such compositions may provide benefit in their end use. For example, antimicrobial agents in foot care products, are often used to treat dermatophyte infections. In tooth care products, antimicrobials are used as anti-caries, anti-gingivitis and anti-periodontitis agents.

[3] Home care products are used to clean or disinfect in homes, hospitals, hotels, motels and offices, and other places where human beings live, work or otherwise carry on the functions of life. In general, home care products confer some benefit on the consumer by acting on the consumer's environment, whether it be at home, work, or in places of public convenience. Antimicrobials are employed in home care products, such as detergents, soaps, bleaches, antiseptics, deodorants and other cleansing agents, to kill microbes or to control their growth. Microbes include bacteria, fungi and viruses. In some instances, the antimicrobial agents may act as preservatives for the home care product. In addition, manufacturers often include antimicrobials in their products in order to confer an antimicrobial benefit through the intended use of the product. For example, a manufacturer may include an antimicrobial agent in a laundry detergent in order to remove detrimental microbes, for example bacteria, viruses and fungi, from clothing. A manufacturer may include an antimicrobial agent in surface washing detergent in order to reduce the viability or number of microbes on a variety of surfaces in the

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user's environment. Indeed, manufacturers have found antimicrobials to be useful in a vast variety of home care products.

[4] In both personal care and home care products, antimicrobials provide a distinct advantage as preservatives...