FOAMABLE ALCOHOLIC COMPOSITION

• US 20110104079A1
• Filed: 12/22/2010
• Published: 05/05/2011
• Est. Priority Date: 12/28/2005
• Status: Abandoned Application

• Current Assignee: John H. Viscovitz, Marcia Snyder
• Original Assignee: John H. Viscovitz, Marcia Snyder
• Inventors: Snyder, Marcia, Viscovitz, John H.
• Application Number:
  US12/975,454
• Publication Number:
  US 20110104079A1
• Time in Patent Office: Days
• US Class Current: 424/45
• CPC Class Codes: A01N 25/16 Foams
• CPC Class Codes: A01N 31/02 Acyclic compounds
• CPC Class Codes: A61P 31/00 Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
• CPC Class Codes: A61P 31/02 Local antiseptics
• CPC Class Codes: C11D 1/008 Polymeric surface-active agents
• CPC Class Codes: C11D 3/0094 High foaming compositions
• CPC Class Codes: C11D 3/2003 Alcohols; Phenols
• CPC Class Codes: C11D 3/3738 Alkoxylated silicones

Abstract

A foamable composition is provided that includes at least 40 weight percent alcohol, based upon the total weight of the alcoholic composition; a foaming surfactant selected from the group consisting of anionic, cationic, and zwitterionic fluorosurfactants, and combinations thereof; and a polymeric or oligomeric foam stabiliser selected from the group consisting of polyquaterniums, quaternized copolymers of vinylpyrrolidone and dimethylamino methacrylate, hydrophobically modified quaternized copolymers of vinylpyrrolidone & dimethylaminopropyl methacrylamide, and mixtures thereof. Methods of forming a stabilised foam and of reducing dripping from a dispenser are also provided.

Claims

1. A foamable composition comprising:

at least 40 weight percent alcohol, based upon the total weight of the alcoholic composition;

a foaming surfactant selected from the group consisting of anionic, cationic, and zwitterionic fluorosurfactants, and combinations thereof; and

a polymeric or oligomeric foam stabilizer selected from the group consisting of polyquaterniums, quaternized copolymers of vinylpyrrolidone and dimethylamino methacrylate, hydrophobically modified quaternized copolymers of vinylpyrrolidone &

dimethylaminopropyl methacrylamide, and mixtures thereof, wherein the weight ratio of foaming surfactant to foam stabilizer is from about 3.5;

1 to about 14.5;

1.

2. The composition of claim 1, wherein said alcohol comprises methanol, ethanol, propanol, isopropanol, butanol, isobutanol, tertiary butanol, or mixtures thereof.

3. The composition of claim 1, wherein said fluorosurfactant is perfluoroalkylethyl phosphates, perfluoroalkylethyl betaines, fluoroaliphatic amine oxides, fluoroaliphatic sodium sulfosuccinates, fluoroaliphatic phosphate esters, fluoroaliphatic quaternaries, or a mixture thereof.

4. The composition of claim 1, wherein said fluorosurfactant is DEA-C8-18 perfluoroalkylethyl phosphate, TEA-C8-18 perfluoroalkylethyl phosphate, NH₄—

C8-18 perfluoroalkylethyl phosphate, or C8-18 perfluoroalkylethyl betaine.

5. The composition of claim 1, wherein said fluoro surfactant can be represented by the formula

[F₃CF₂C—

(CF₂CF₂)_x—

CH₂CH₂—

O—

P₂O₃]⁻

[R¹]⁺

where [R¹]+ includes DEA, TEA, NH₄, or betaine, and where x is an integer from about 4 to about 18.

6. The composition of claim 1, wherein said foamable composition comprises greater than 60 wt. % alcohol, and said fluorosurfactant is present in an amount of from about 0.002 to about 1 wt %, based upon the total weight of the alcoholic composition.

7. The composition of claim 1, wherein said composition further comprises a siloxane polymer surfactant.

8. The composition of claim 1, wherein said foam stabilizer is present in an amount of from about 0.005 to about 4 wt. %, based upon the total weight of the alcoholic composition.

9. The composition of claim 1, wherein the weight ratio of foaming surfactant to foam stabilizer is from about 8:

1 to about 11;

1.

10. A method for forming stabilized alcoholic foam, the method comprising:

combining an alcohol, a foaming surfactant selected from the group consisting of anionic, cationic, and zwitterionic fluorosurfactants and combinations thereof, and a polymeric or oligomeric foam stabilizer selected from the group consisting of polyquaterniums, quaternized copolymers of vinylpyrrolidone and dimethylamino methacrylate, hydrophobically modified quaternized copolymers of vinylpyrrolidone &

dimethylaminopropyl methacrylamide, and mixtures thereof, to form a foamable alcoholic composition, wherein the weight ratio of foaming surfactant to foam stabilizer is from about 3.5;

1 to about 14.5;

1;

mixing said alcoholic composition and air or an inert gas in a mixing chamber to form a mixture; and

passing said mixture through a mesh screen to form a foam, wherein said foamable alcoholic composition comprises at least 40 percent by weight alcohol, based upon the total weight of the alcoholic composition.

11. The method of claim 10, wherein the foam stability of said foam at room temperature is at least about 30 seconds.

12. The method of claim 10, wherein the foam stability of said foam at room temperature is at least about 3 minutes.

13. The method of claim 10, wherein said foam stabilizer comprises a polyquaternium.

14. A method for reducing dripping of a composition from a foaming pump dispenser adapted to dispense said composition, the method comprising:

providing a foamable composition comprising at least 40 weight percent alcohol, based upon the total weight of the alcoholic composition;

a foaming surfactant selected from the group consisting of anionic, cationic, and zwitterionic fluoro surfactants, and combinations thereof; and

a polymeric or oligomeric foam stabilizer selected from the group consisting of polyquaterniums, quaternized copolymers of vinylpyrrolidone and dimethylamino methacrylate, hydrophobically modified quaternized copolymers of vinylpyrrolidone &

dimethylaminopropyl methacrylamide, and mixtures thereof;

providing a foaming pump dispenser having a dispenser head; and

placing said foamable composition into said foaming pump dispenser.

15. The method of claim 14, wherein said method further comprises the step of dispensing an aliquot of said foamable composition, wherein a portion of said aliquot remains in the dispenser head for at least about 3 minutes, and wherein said portion remaining in said dispenser head does not drip from the dispenser.