Methods, uses and compositions of fluid petrolatum
AssigneeIgen, Inc.
InventorsRajiv Mathur, Nadya Lawrence
Life of this patent
Estimating the term…
Abstract
A fluid preparation of petrolatum capable of being sprayed on to a surface. The preparation includes paucilamellar lipid vesicles containing the petrolatum. Preferably, petrolatum comprises about 20-30% or more of the total weight of the vesicles. Methods of protecting the skin of mammals using the fluid preparation of petrolatum are also discussed.
Claims16
A sprayable petrolatum product having paucilamellar lipid vesicles encapsulating petrolatum dispersed in an external aqueous phase, said paucilamellar lipid vesicles comprising a primary wall forming material, and a metal oxide weighting agent, said primary wall forming material being selected from the group consisting of nonionic and zwiterionic surfactants, and said weighting agent being present in an amount sufficient that said paucilamellar lipid vesicles have a density of about 0.95-1.0 g/ml.
A method for protecting the skin of a mammal by contacting said skin with a sprayable pharmaceutical petrolatum composition product having paucilamellar lipid vesicles encapsulating petrolatum dispersed in an external aqueous phase, said paucilamellar lipid vesicles comprising a primary wall forming material, and a metal oxide weighting agent, said primary wall forming material being selected from the group consisting of nonionic and zwiterionic surfactants, and said metal oxide weighting agent being present in an amount sufficient that said paucilamellar lipid vesicles have a density of about 0.95-1.0 g/ml.
Dependencies are inferred from the claim text.