Surface disinfectant with residual biocidal property

Patent metadata

Field	Value
Publication number	US-10834922-B2
Application number	US-201514949046-A
Country	US
Kind code	B2
Filing date	Nov 23, 2015
Priority date	Nov 26, 2014
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A disinfectant formulation is provided imparting a residual biocidal property. The disinfectant formulation is used to treat a surface to impart a film having a capacity to quickly kill bacteria and other germs for at least 24 hours after deposit of the film on a treated surface. The disinfectant formulation comprises a polymer binder, wherein the polymer binder is an oxazoline homopolymer or an extended or a modified polymer based on an oxazoline homopolymer, and a biocidal compound. The disinfectant formulation further comprises a carrier. An article having the disinfectant formulation is provided as well as methods of making, using and applying the disinfectant formulation.

First claim

What is claimed is:

1. A disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
a polyoxazoline present in a range of 0.2% to 4% based on the weight of the disinfectant formulation, the polyoxazoline having a structure of

wherein: R 1 is methyl; R 2 is hydroxyl; R 3 is ethyl; and n=10 to 1,000,000, and
a quaternary ammonium compound (QAC) or a mixture of quaternary ammonium compounds present in a range of 0.3% to 4% based on the weight of the disinfectant formulation, the QAC having a structure of

wherein
R 1 is methyl;
R 2 is alkyl C8-10; methyl-benzyl; or ethyl-benzyl;
R 3 is methyl;
R 4 is alkyl C8-18;
and
X − is chloride, or carbonate/bicarbonate.

2. The disinfectant formulation according to claim 1 , wherein the polyoxazoline is prepared with a monomer of ethyloxazoline.

3. The disinfectant formulation according to claim 2 , wherein ethyloxazoline is copolymerized with a heterocyclic monomer.

4. The disinfectant formulation according to claim 1 , wherein the disinfectant formulation is in a form of a liquid.

5. The disinfectant formulation according to claim 1 , wherein the quaternary ammonium compound is present in a composition comprising: N-alkyl dimethyl benzyl ammonium chloride, N-octyl decyl dimethyl ammonium chloride, di-n-decyl dimethyl ammonium chloride, and di-n-octyl dimethyl ammonium chloride.

6. The disinfectant formulation according to claim 5 , wherein the composition comprises: 40 weight % of N-alkyl dimethyl benzyl ammonium chloride, 30 weight % of N-octyl decyl dimethyl ammonium chloride, 15 weight % of di-n-decyl dimethyl ammonium chloride, and 15 weight % of di-n-octyl dimethyl ammonium chloride, wherein the percentage is a weight percentage of individual quaternary ammonium compounds based on the total weight of the quaternary ammonium compounds within the composition.

7. The disinfectant formulation according to claim 1 , further comprising a carrier comprised of a solvent or a mixture of solvents.

8. The disinfectant formulation according to claim 7 , wherein the solvent or mixture of solvents comprise water, a low molecular weight alcohol, alkylene glycol ether, a terpene or terpene derivative, and a combination thereof.

9. The disinfectant formulation according to claim 8 , wherein the alcohol is present in an amount of at least 10%.

10. The disinfectant formulation according to claim 1 , further comprising a surfactant or a wetting agent.

11. The disinfectant formulation according to claim 10 , wherein the surfactant is present in a range of 0.01% to 2%.

12. A liquid disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
a polyoxazoline present in a range of 0.2% to 4% based on the weight of the disinfectant formulation, the polyoxazoline having a structure of

wherein: R 1 is methyl; R 2 is hydroxyl; R 3 is ethyl; and n=10 to 1,000,000, and
a biocidal compound present in a range of 0.3% to 4% based on the weight of the disinfectant formulation,
0% to 99.5% water,
0% to 99.5% alcohol, and
0% to 5% of a surfactant,
wherein the biocidal compound is a quaternary ammonium compound (QAC) or a mixture of quaternary ammonium compound having a molecular structure of:

wherein
R 1 is methyl;
R 2 is alkyl C8-10; methyl-benzyl; or ethyl-benzyl;
R 3 is methyl;
R 4 is alkyl C8-18;
and
X − is chloride or carbonate/bicarbonate.

13. An article treated with a disinfectant formulation according to claim 1 comprising:
a polyoxazoline having a structure of

wherein: R 1 is methyl; R 2 is hydroxyl; R 3 is ethyl; and n=10 to 1,000,000, and
a quaternary ammonium compound (QAC) or a mixture of quaternary ammonium compounds, the QAC having a structure of

wherein
R 1 is methyl;
R 2 is alkyl C8-10; methyl-benzyl; or ethyl-benzyl;
R 3 is methyl;
R 4 is alkyl C8-18;
and
X − is chloride or carbonate/bicarbonate.

14. The article according to claim 13 , wherein the article is in a form of a wipe or other disposable product.

15. A method of using a disinfectant formulation according to claim 1 , the method comprising:
providing the disinfectant formulation comprised of:
(i) a polyoxazoline having a structure of

wherein: R 1 is methyl; R 2 is hydroxyl; R 3 is ethyl; and n=10 to 1,000,000,
and
(ii) a quaternary ammonium compound (QAC) or a mixture of quaternary ammonium compounds, the QAC having a structure of

wherein:
R 1 is methyl;
R 2 is alkyl C8-10; methyl-benzyl; or ethyl-benzyl;
R 3 is methyl;
R 4 is alkyl C8-18; and
X − is chloride or carbonate/bicarbonate;

and

treating a surface with the disinfectant formulation to impart a film having a capacity to quickly kill bacteria and other germs for at least 24 hours after deposit of the film on the treated surface.

16. The method according to claim 15 , wherein treating occurs by an application method selected from the group consisting of spraying, fogging, rolling, brushing, mopping, wiping, and a combination thereof.

Assignees

• Microban Products
• Wm Barr & Co Inc

Inventors

• Lan Tian
• Hanna Samuel James
• Sloan Gina Parise
• Aylward Brian Patrick
• Welch Karen Terry
• Shireman Dennis Earl
• Kavchok Kevin Andrew
• Hawes Charles L

Classifications

• A01N25/10 Primary

  Macromolecular compounds · CPC title

• D06M15/19

  with synthetic macromolecular compounds (with synthetic rubber D06M15/693) · CPC title

• A01N25/24

  containing ingredients to enhance the sticking of the active ingredients · CPC title

• A01N33/04 Primary

  Nitrogen directly attached to aliphatic or cycloaliphatic carbon atoms · CPC title

• A01N37/20

  containing the group [IMAGE cpc-sch-A01N-0935.gif], wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof · CPC title