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Surfactant-free, water-free formable composition and breakable foams and their uses

  • US 10,029,013 B2
  • Filed: 10/01/2010
  • Issued: 07/24/2018
  • Est. Priority Date: 10/02/2009
  • Status: Active Grant
First Claim
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1. A waterless foamable composition free of surfactant and polymeric agent comprising:

  • a carrier comprising;

    a) about 50% to about 90% by weight of the carrier of a liquid oil and about 10% to about 50% by weight of the carrier of a paraffin wax that has a melting point between about 47°

    C. and about 64°

    C., wherein the total weight of the liquid oil and paraffin wax together is between about 85% and about 100% by weight of the carrier;

    orb) about 40% by weight of the carrier of a liquid oil and about 60% by weight of the carrier of a paraffin wax that has a melting point between about 42°

    C. and about 44°

    C.; and

    a liquefied or compressed gas propellant; and

    a tetracycline antibiotic;

    wherein the ratio of the carrier to the propellant is from about 100;

    4 to about 100;

    25;

    wherein the composition comprises less than 5% foam adjuvant; and

    wherein upon dispensing the foamable composition from a container, the composition forms a breakable foam that is stable, yet breaks easily upon application of shear force.

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