Non surfactant hydro-alcoholic foamable compositions, breakable foams and their uses

217783/2

Atty. Docket No. 0113873.00186W01

NON SURFACTANT HYDRO-ALCOHOLIC FOAMABLE COMPOSITIONS, BREAKABLE FOAMS AND THEIR USES

[0001] [Cancelled]

BACKGROUND

[0002] Foam compositions with high amounts of alcohol are known in the art. Alcohol-based compositions are useful because of the anti-microbial properties of alcohol and the ability for alcohol to dissolve certain active agents.

[0003] Foams and, in particular, single-phase foams are complicated systems which do not form under all circumstances. Slight shifts in foam composition, such as by the addition of active ingredients or the removal of any of the essential ingredients, may destabilize the foam.

[0004] The prior art teaches hydro-alcoholic foam compositions require significant amounts of short-chain alcohols (namely, ethanol, propanol, isopropanol, butanol, iso-butanol, t-butanol and pentanol), water, fatty alcohols, polymer and surfactant to form a foam. These compositions require various surfactants, such as, non-ionic surfactants, anionic, cationic, zwitterionic, amphoteric and ampholytic surfactants, as essential components.

[0005] Surfactants are known as essential ingredients in foam compositions because of their amphiphilic properties and because they are considered essential in forming a foam. However, many surfactants are known to be irritating when left on the skin, as they can extract lipids from the skin, thereby damaging skin barrier and

Signed by: MinistryOfJustice

Reason:

Date & Time: 24 May 2016 02:10:10 cosign 1