Polymer sustainedly -release polymer amino acid derivative, cosmetic and fiber construct containing the polymer of producing the same and method for regenerating the same
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United States of America Patent
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Issued Date -
Jul 13, 2006
app pub date -
Jul 15, 2004
filing date -
Jul 18, 2003
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Abandoned
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Abstract
The object of the present invention is to provide a polymer which achieves an effect of supplementing the water-retaining function of horny layer and keeping the normal skin by a gradual supplying of an amino acid derivative to the skin through moisture containing electrolyte salt such as sweat perspired from human body and to provide a cosmetic and a fiber structure containing said polymer. According to the present invention, there is provided sustained-release polymer for amino acid derivative, characterized in that, a polymer containing acidic group is ionically bonded to an amino acid derivative. Cosmetic and fiber structure containing the same are also provided.
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