A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/89 (2006.01) A61K 8/06 (2006.01) A61K 8/34 (2006.01) A61K 8/49 (2006.01) A61Q 17/04 (2006.01) A61Q 19/00 (2006.01)
Patent
CA 2651099
The present invention relates to water in oil emulsion compositions suitable for use as sunscreen comprising: from about 0.1% to about 15% of an emulsifying crosslinked siloxane elastomer; from about 1% to about 40% of a solvent for the emulsifying crosslinked siloxane elastomer; from about 0.01% to about 5% of an additional emulsifier; from about 50% to about 99% of aqueous phase; and from about 0.01% to about 30% of a sunscreen active; wherein when shear stress is applied to the composition during spreading on skin, aqueous phase is released from the emulsion.
La présente invention se rapporte à des compositions d'émulsions eau dans l'huile pouvant servir d'écrans solaires. Les compositions selon l'invention comprennent : de 0,1 à 15 % environ d'un siloxane élastomère réticulé émulsifiant; de 1 à 40 % environ d'un solvant pour le siloxane élastomère réticulé émulsifiant; de 0,01 à 5 % environ d'un émulsifiant supplémentaire; de 50 à 99 % environ d'une phase aqueuse; et de 0,01 à 30 % environ d'un agent actif antisolaire. L'application d'une contrainte de cisaillement sur la composition lorsque cette dernière est étalée sur la peau a pour effet de libérer la phase aqueuse de l'émulsion.
Suginaka Yasuko
Tanaka Hidekazu
Yoshimi Naohisa
Gowling Lafleur Henderson Llp
The Procter & Gamble Company
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