Broad Spectrum Preservation Blends
AssigneeArch Personal Care Products, L.P.
InventorsDiana T. Ciccognani, Kevin N. DiNicola, Katherine P. Roberts, Laura M. Szymczak
Life of this patent
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Abstract
A composition having effective broad spectrum preservation activity comprising benzyl alcohol, salicylic acid, sorbic acid and a compound selected from the group consisting of 1,3-propanediol, glycerin and combinations thereof.
Claims15
1-21. (canceled)
A composition having effective broad spectrum preservation activity comprising:
- (a) benzyl alcohol, (b) salicylic acid, (c) sorbic acid and (d) a compound selected from the group consisting of 1,3-propanediol, glycerin and a combination thereof, wherein component (a) is present at a concentration of from about 70% to about 90% by weight, component (b) is present at a concentration of from about 1% to 15% by weight, component (c) is present at a concentration of from about 1% to 4% by weight, and component (d) is present at a concentration of from about 1% to 15% by weight, provided that the total amount of components (b) and (c) is no more than 15% by weight, all based on the total weight of the composition.
The composition of claim 1 wherein the composition is substantially free of water.
The composition of claim 1 wherein the total weight percentage of component (a), (b), (c) and (d) combined is 100%.
The composition of claim 1 wherein component (a) is present at a concentration of from about 77% to 86% by weight, component (b) is present at a concentration of from about 3% to about 12% by weight, component (c) is present at a concentration of from about 2.5% to 3.5% by weight, and component (d) is present at a concentration of from about 1% to 10% by weight, based on the total weight of the composition.
The composition of claim 1 wherein component (d) is glycerin presented at a concentration of from about 2% to about 5%.
The composition of claim 1 wherein component (d) is 1,3-propanediol presented at a concentration of from about 2% to about 5%.
The composition of claim 1 additionally comprises dehydroacetic acid, wherein the total amount of salicylic acid, sorbic acid, and dehydroacetic acid is no more than 15 wt % of the composition.
The composition of claim 7 wherein dehydroacetic acid and component (d) are present at a weight ratio range of from about 3:1 to 1:1.
The composition of claim 1 wherein component (a) is present at a concentration of from about 77% to about 86%, component (b) is present at a concentration of from about 8% to 11%, component (c) is present at concentration of from about 2.5% to 3.5%, and component (d) is glycerin present at a concentration of from about 2% to about 5%, all based on the weight of the composition.
A topical formulation comprising a composition of claim 1 and additives selected from the group consisting of solvents, surfactants emulsifiers, consistency factors, conditioners, emollients, skin caring ingredients, moisturizers, thickeners, lubricants, fillers, anti-oxidants, other preservatives, active ingredients, fragrances and mixtures thereof.
The topical formulation of claim 10 wherein composition of claim 1 is present at a concentration of from about 0.5% to about 1.5% based on the weight of the formulation.
The topical formulation of claim 11 wherein composition of claim 1 is present at a concentration of from about 0.6% to about 1% based on the weight of the formulation.
The topical formulation of claim 10 wherein the formulation is in the form of an oil-in-water emulsion.
The topical formulation of claim 10 wherein the formulation is in the form of a water-in-oil emulsion.
Dependencies are inferred from the claim text.