Soap bars having ultraviolet radiation protection

Details Soap bars having ultraviolet radiation protection Soap bars having ultraviolet radiation protection

A - Human Necessities

61

K

A61K 8/19 (2006.01) A61K 8/36 (2006.01) A61K 8/89 (2006.01) A61Q 17/04 (2006.01) A61Q 19/10 (2006.01)

Patent

CA 2566797

The present invention is drawn to a soap bar that after the washing process leaves a residual deposit on a substrate that provides protection from ultraviolet radiation comprising (a) soap, a fatty carboxylic acid that has been saponified with either sodium hydroxide, potassium hydroxide, ammonium hydroxide, or mixtures thereof; (b) from greater than 10% to about 25% by weight red petrolatum; and (c) at least one surface-treated metal oxide. Optionally, compositions of the present invention may also include (d) at least one wetting agent having a log P value of greater than about 4.0 and/or (e) an organic sunscreen having a log P value of greater than about 4Ø

La présente invention concerne une barre de savon qui après le processus de lavage laisse un dépôt résiduel sur un substrat, assurant une protection contre le rayonnement ultraviolet. Ladite barre de savon comprend : (a) du savon, un acide carboxylique gras qui a été saponifié avec de l'hydroxyde de sodium, de l'hydroxyde de potassium, de l'hydroxyde d'ammonium, ou des mélanges de ces derniers ; (b) entre plus de 10 % et jusqu'à environ 25 % en poids de paraffine rouge ; et (c) au moins un oxyde métallique traité en surface. Eventuellement, les compositions selon la présente invention peuvent également comprendre : (d) au moins un agent mouillant présentant une valeur log P supérieure à environ 4,0 et/ou (e) un écran chimique organique présentant une valeur log P supérieure à environ 4,0.

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