Drug – bio-affecting and body treating compositions – Bleach for live hair or skin
Patent
1979-06-18
1981-01-27
Schofer, Joseph L.
Drug, bio-affecting and body treating compositions
Bleach for live hair or skin
8111, 252186, 424DIG3, A61K 7135, D06L 300, D06L 302
Patent
active
042475376
ABSTRACT:
The invention relates to a bleaching powder which comprises at least 25% by weight of ammonium persulphate, at least 25% by weight of sodium percarbonate or potassium percarbonate and pyrogenic silica in percentages whereby the same can in a vaporproof enclosure be marketed in a premixed dry form which is capable upon aqueous activation of bleaching hair or keratinuous fiber. The one component bleach preferably includes pyrogenic silica in the range of from 4 to 10% by weight and preferably the percentage of the persulphate and percarbonate compounds is in the range of 35% by weight each upwards. Ideally the mixture also includes sequestering and wetting agents. In other forms the invention consists in methods of bleaching and methods of preparation of the bleaching powder.
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Grainger Joyce
Lunn Peter F. R.
Lilling Herbert J.
Schofer Joseph L.
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