Aerosol antimicrobial compositions
First Claim
1. An aerosol antimicrobial dispensable composition comprising:
- (a) about 0.01 to 15% of an anionic polymer or prepolymer, which has an acid number greater than 10 wherein the polymer may be completely or partly neutralized by a quaternary ammonium compound, said polymer having a molecular weight range from 100 to 2,000,000 Daltons;
(b) about 0.01 to 5% of said quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; and
a counterion for said quaternary ammonium compound;
(c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°
C. and selected from the group consisting of C1-6 alkanols, C1-6 diols, C1-6 alkyl ethers of alkylene glycols and polyalkylene glycols, and mixtures thereof, said at least one organic solvent being at least 20% of the composition;
(d) about 1% to 50% of a propellant; and
(e) less than 70% water.
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Accused Products
Abstract
An aerosol antimicrobial composition is provided with the following ingredients: a) an anionic polymer or prepolymer; (b) a quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; (c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25° C., said at least one organic solvent present in a solubilizing—or dispersion—effective amount; (d) an effective amount of a propellant; and (e) the remainder, water. Further is provided a novel method of decontaminating a surface fouled with microorganisms and a dispenser for said aerosol composition. The novel composition advantageously has both disinfectancy (contact efficacy) and residual antimicrobial efficacy.
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Citations
9 Claims
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1. An aerosol antimicrobial dispensable composition comprising:
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(a) about 0.01 to 15% of an anionic polymer or prepolymer, which has an acid number greater than 10 wherein the polymer may be completely or partly neutralized by a quaternary ammonium compound, said polymer having a molecular weight range from 100 to 2,000,000 Daltons;
(b) about 0.01 to 5% of said quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; and
a counterion for said quaternary ammonium compound;
(c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°
C. and selected from the group consisting of C1-6 alkanols, C1-6 diols, C1-6 alkyl ethers of alkylene glycols and polyalkylene glycols, and mixtures thereof, said at least one organic solvent being at least 20% of the composition;
(d) about 1% to 50% of a propellant; and
(e) less than 70% water. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for treating a surface containing microorganisms, or which could contain said microorganisms thereafter, said method comprising the steps of:
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(i) delivering an admixture via a propellant, wherein the admixture and propellant are derived from an aerosol composition comprising;
(a) about 0.01 to 15% of an anionic polymer or prepolymer, which has an acid number greater than 10 wherein the polymer may be completely or partly neutralized by a quaternary ammonium compound, said polymer having a molecular weight range from 100 to 2,000,000 Daltons;
(b) about 0.01 to 5% of said quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; and
a counterion for said quaternary ammonium compound;
(c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°
C. and selected from the group consisting of C1-6 alkanols, C1-6 diols, C1-6 alkyl ethers of alkylene glycols and polyalkylene glycols, and mixtures thereof, said at least one organic solvent being at least 20% of the composition;
(d) about 1% to 50% of a propellant; and
(e) less than 70% water; and
(ii) applying said admixture to a surface.
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8. A device for dispensing an aerosol antimicrobial composition which comprises:
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a closed container containing said composition, said composition comprising;
(a) about 0.01 to 15% of an anionic polymer or prepolymer, which has an acid number greater than 10 wherein the polymer may be completely or partly neutralized by a quaternary ammonium compound, said polymer having a molecular weight range from 100 to 2,000,000 Daltons;
(b) about 0.01 to 5% of said quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; and
a counterion for said quaternary ammonium compound;
(c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°
C. and selected from the group consisting of C1-6 alkanols, C1-6 diols, C1-6 alkyl-ethers of alkylene glycols and polyalkylene glycols, and mixtures thereof, said at least one organic solvent being at least 20% of the composition;
(d) about 1% to 50% of a propellant; and
(e) less than 70% water.
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9. A film or residue on a surface from the application of a dispensable antimicrobial composition to said surface, said aerosol composition comprising:
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(a) about 0.01 to 15% of an anionic polymer or prepolymer, which has an acid number greater than 10 wherein the polymer may be completely or partly neutralized by a quaternary ammonium compound, said polymer having a molecular weight range from 100 to 2,000,000 Daltons;
(b) about 0.01 to 5% of said quaternary ammonium compound, the components (a) and (b) combining to form an antimicrobially effective complex; and
a counterion for said quaternary ammonium compound;
(c) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°
C. and selected from the group consisting of C1-6 alkanols, C1-6 diols, C1-6 alkyl ethers of alkylene glycols and polyalkylene glycols, and mixtures thereof, said at least one organic solvent being at least 20% of the composition;
(d) about 1% to 50% of a propellant; and
(e) less than 70% water.
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Specification