Loading patent…
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsKatrin Dagmar Clarkson, Andrew Sjaak Landa, Stephen Anthony Makin, Axel Volker
Estimating the term…
An anti-microbial composition comprising: (i) a C1 to C4 monohydric alcohol carrier fluid, present at a level of at least 25% by weight of the total composition (excluding any volatile propellant present); (ii) an iron (III) chelator having an iron (III) binding constant of 1023 or greater; (iii) a solubility promoter selected from the group consisting of: (a) water; (b) an organic amine; (c) a polyhydric alcohol or derivative thereof; (d) a volatile propellant having fluorine-carbon or oxygen-carbon bonds; (e) any combination of (a) to (d). The transitional metal chelator serves as an active anti-microbial, whilst the carrier fluid-solubility promoter mixture enables the formation of a stable composition. Preferred compositions are homogeneous solutions.
An anti-microbial composition comprising:
An anti-microbial composition according to any of the preceding claims, wherein the weight ratio of C1-C4 monohydric alcohol carrier fluid to water is greater than 65:35.
An anti-microbial composition according to any of the preceding claims, wherein the weight ratio of C1-C4 monohydric alcohol carrier fluid to water is greater than 75:25 and the solubility promoter comprises an organic amine.
An anti-microbial composition according to any of the preceding claims, wherein the iron (III) chelator has a binding coefficient for iron (III) of greater than 1026.
An anti-microbial composition according to any of the preceding claims, wherein the iron (III) chelator is a polyaminocarboxylic acid or salt thereof.
An anti-microbial composition according to any of the preceding claims, wherein the iron (III) chelator has an acid form with at least five ionisable acid groups.
An anti-microbial composition according to any of the preceding claims, wherein the chelator is present at a concentration of 0.01% to 10% by weight of the composition, excluding any volatile propellant present.
An anti-microbial composition according to any of the preceding claims, comprising an additional anti-microbial agent.
An anti-microbial composition according to any of the preceding claims, comprising fragrance material at up to 4% by weight of the composition, excluding any volatile propellant present.
An anti-microbial composition according to any of the preceding claims, that comprises a volatile propellant.
A method of controlling microbial numbers, said method comprising the application to a substrate of an anti-microbial composition according to any of the preceding claim.
A method for the manufacture of an anti-microbial composition, said method comprising the formation of a solution of an iron (III) chelator having an iron (III) binding constant of 1023 or greater in a C1 to C4 monohydric alcohol carrier fluid, present at a level of at least 25% by weight of the total composition (excluding any volatile propellant present), and also comprising a solubility promoter selected from the group consisting of:
Dependencies are inferred from the claim text.