Patent ID: 9682021
Date: 2017-06-20
CPC Classifications: A61K,A61P,A61Q,Y10S

Claim:
1. A foamable composition comprising: a foamable carrier and at least one liquefied or compressed gas propellant, the foamable carrier comprising: (1) a petrolatum or mixtures thereof at a concentration of about 50% to about 95% by weight of the foamable carrier; (2) a solvent substantially miscible in the petrolatum at a concentration of 0% to about 50% by weight of the foamable carrier; and (3) a foam adjuvant comprising a fatty alcohol and either a surfactant or a surfactant system at a concentration of about 0.1% to about 20% by weight of the foamable carrier; wherein the surfactant is selected from the group consisting of a polyoxyethylene fatty acid ester, a polyoxyethylene alkylyl ether, a sucrose ester, a monoglyceride, a diglyceride, glucose methyl stearate, methyl glucose sesquistearate, polyglyceryl 10 laurate, sodium stearyl phtalmate and a mixture of any two or more thereof; or wherein the surfactant system is a combination of at least two surfactants selected from the group consisting of at least two polyoxyethylene alkyl ethers, steareth 2 and steareth 20, steareth 2 and Steareth 21, polyoxyethylene (40) stearate and polyoxyethylene (100) stearate, a combination of sucrose esters, sucrose stearate and sucrose distearate, and glyceryl stearate and PEG-100 stearate; wherein the composition is non-aqueous; wherein the composition does not contain a sorbitan fatty acid ester; wherein the ratio of the foamable carrier to the propellant ranges from about 100:10 to about 100:35; and wherein the composition is stored in a pressurized container and upon release expands to form a breakable foam.