Drug – bio-affecting and body treating compositions – Topical sun or radiation screening – or tanning preparations
Patent
1990-01-11
1993-10-05
Ore, Dale R.
Drug, bio-affecting and body treating compositions
Topical sun or radiation screening, or tanning preparations
424 60, 514938, 514939, A61K 742, A61K 744, A61K 748, A61K 910
Patent
active
052502899
ABSTRACT:
A sunscreening composition which comprises a water-in-oil emulsion which comprises a) 0.5 to 30% by weight of titanium dioxide having a mean primary particle size of less than 100 nm, b) 5 to 20% by weight of an oil phase, c) 1 to 15% by weight of an emulsifier, and d) at least 40% by weight of an aqueous phase. The titanium dioxide may be coated with aluminium stearate. Further sunscreening agents may be included. The oil phase may be a hydrocarbon oil, a wax, a natural oil, a silicone oil or a mixture. Preferred emulsifiers are sesquioleates such as polyglyceryl-2-sesquioleate or sorbitan sesquioleate, polyethoxylated esters of derivatives of natural oils such as polyethoxylated esters of hydrogenated castor oil or silicone emulsifiers such as silicone polyols.
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Derwent Abstract of Japanese Pat. No. 9000450-A, May 1, 1974.
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The paragraph entitled "Unique Screen Agent" published as part of an article entitled Sunshine '82 in the Jan. 1982 edition of Manufacturing Chemist.
Boothroyd Stephen
Galley Edward
Stammers Arija M.
Ore Dale R.
The Boots Company PLC
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