Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Carbon disulfide – monoxide – or dioxide
Patent
1994-12-28
1997-06-03
Bawa, Raj
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Carbon disulfide, monoxide, or dioxide
424 7011, 424DIG6, 132202, A61K 706
Patent
active
056351674
ABSTRACT:
This invention describes a process for the removal of exogenous minerals which have become attached to human hair or keratin fiber which include the steps of contacting at least one chelating agent to the human hair or keratin fiber, the chelating agent selected from the group consisting of amino acid-type, polyphosphate-type and phosphonate-type agents, maintaining contact with the chelating agent and the human hair or keratin fiber for a period of time sufficient to permit the chelating agent to complex with the exogenous minerals, thereby removing at least a portion of the attached minerals, and rinsing the chelating agent. The process is enhanced with the pH is adjusted to a range of between 4 to 9, preferably 5 to 8. The chelating agent is added at a concentration of 4% by weight to 25% by weight, preferably 5 to 20% by weight. In a preferred case, the chelating agent is selected from the group consisting of a salt of ethylenediaminetetraacetic acid, a salt of hydroxyethylethylenediaminetriacetic acid, a salt of diethylenetriaminepentaacetic acid, a salt of nitrilotriacetic acid and a salt of tripolyphosphate, preferably the sodium salt. The chelating agents used are preferably blends of chelating agents thereby achieve a synergistic effect.
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Said Hayel
Said Hian
Bawa Raj
L'Avante Garde, Inc.
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