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Substantially non-aqueous foamable petrolatum based pharmaceutical and cosmetic compositions and their uses

  • US 8,795,635 B2
  • Filed: 05/12/2010
  • Issued: 08/05/2014
  • Est. Priority Date: 11/14/2006
  • Status: Active Grant
First Claim
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1. A non-aqueous, substantially non-alcoholic 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 25% to about 95% by weight of the foamable carrier;

    (2) a hydrophobic solvent at a concentration of about 1% to about 70% by weight of the foamable carrier; and

    (3) at least one foam agent selected from the group consisting of a surfactant, a surfactant system, a foam adjuvant and combinations thereof;

    at a concentration of about 0.1% to about 20% by weight of the foamable carrier;

    wherein the amount of petrolatum is about the same as or in excess of the hydrophobic solvent and, together, the hydrophobic solvent and petrolatum are present in the foamable carrier at a concentration of at least about 80% by weight of the foamable carrier;

    wherein the composition is substantially free of silicone oil;

    wherein the composition is substantially free of short chain alcohols having up to 5 carbon atoms in their carbon chain skeleton and one hydroxyl group; and

    wherein the composition is stored in a pressurized container and upon release expands to form a breakable foam which breaks upon application of shear force.

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