Dermal barrier composition
AssigneeSkinvisible Pharmaceuticals, Inc.
InventorBruce Jezior
Life of this patent
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Abstract
Disclosed is a dermal barrier composition which contains a hydrophilic polymer emulsion and a hydrophobic polymer emulsion. The dermal barrier composition is moisture activated, and remains inert until the hydrophobic and hydrophilic polymer emulsions contact a suitable substrate such as human skin. The dermal barrier composition is itself an emulsion, and can optionally contain a biocidal agent for antimicrobial and antiviral efficacy. The dermal barrier composition can also contain other active agents such as sunscreens, insect repellents and fungicides. The dermal barrier composition can be applied topically to skin, where it forms a protective or barrier layer against a number of pathogenic and chemical irritants.
Claims18
A dermal composition for topical application comprising:
- an emulsion comprising a mixture of polymers, (i), (ii) and (iii), each polymer having a size that allows for mixing and barrier properties, wherein the mixture of polymers comprises:
- (i) poly(methyl vinyl ether/maleic acid) provided in an amount of up to 69.6 wt.%, based on the weight of the mixture of polymers;
- (ii) at least 3 wt.%, based on the weight of the mixture of polymers, of poly(vinyl pyrrolidone/1-eiocosene);
- (iii) poly(vinyl pyrrolidone/1-hexadecene) provided in an amount of up to 51.5 wt. %, based on the weight of the mixture of polymers;
- and water.
Dependencies are inferred from the claim text.