# US 11,026,418 B2 · Surface disinfectant with residual biocidal property

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- Number: US 11,026,418 B2
- Document ID: US11026418B2
- Status: Granted
- Kind: B2
- Application number: 14/948,962
- Filed: 2015-11-23
- Published: 2016-05-26
- Granted: 2021-06-08
- Earliest claimed: 2014-11-26
- Assignees: Microban Products Company; W.M. Barr & Company, Inc.
- Applicants: Microban Products Company; W.M. Barr & Company, Inc.
- Inventors: Tian Lan; Samuel James Hanna; Gina Parise Sloan; Brian Patrick Aylward; Karen Terry Welch; Dennis Earl Shireman; Kevin Andrew Kavchok; Charles L. Hawes
- Web page: https://patentgrep.com/patent/US11026418B2

## CPC

- A01N 33/04: Nitrogen directly attached to aliphatic or cycloaliphatic carbon atoms
- A01N 25/10: Macromolecular compounds
- A01N 25/24: containing ingredients to enhance the sticking of the active ingredients
- A01N 33/12: Quaternary ammonium compounds
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## 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.

## Claims

### Claim 1

A disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
0.2 weight % to 3 weight % of an oxazoline homopolymer having a structure of:
wherein
R1 is hydroxyl,
R2 is hydroxyl,
R3 is alkyl and
n is in a range of 10 to 1,000,000;
0.2 weight % to 4 weight % of a quaternary ammonium compound having a structure of:
wherein
R1 is methyl;
R2 is C8-C12 alkyl, or benzyl;
R3 is methyl;
R4 is C8-C16 alkyl;
X−, an anion, is Cl;
and a carrier.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

The disinfectant formulation according to claim 1, wherein the carrier comprises a solvent or a mixture of solvents.

### Claim 4 (depends on 3)

The disinfectant formulation according to claim 3, wherein the solvent is selected from the group consisting of water, a low molecular weight alcohol, alkylene glycol ether, a terpene or terpene derivative, and a combination thereof.

### Claim 5 (depends on 1)

The disinfectant formulation according to claim 1, wherein a surfactant or a wetting agent is present in a range of 0.01 weight % to 1.5 weight %.

### Claim 6 (depends on 1)

An article treated with the disinfectant formulation according to claim 1.

### Claim 7 (depends on 1)

The article according to claim 1, wherein the article is in a form of a wipe or other disposable product.

### Claim 8 (depends on 1)

A method of using a disinfectant formulation according to claim 1, comprising 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.

### Claim 9 (depends on 8)

The method according to claim 8, wherein treating occurs by an application method selected from the group consisting of spraying, fogging, rolling, brushing, mopping, wiping, and a combination thereof.

### Claim 10 (depends on 1)

The disinfectant formulation according to claim 1, wherein R3 of the oxazoline homopolymer is ethyl.

### Claim 11

A disinfectant formulation imparting a residual biocidal property, the disinfectant formulation comprising:
0.2 weight % to 3 weight % of poly (2-ethyl 2-oxazolone);
0.2 weight % to 4 weight % of a quaternary ammonium compound having a structure of:
wherein
R1 is methyl;
R2 is C8-C12 alkyl, or benzyl;
R3 is methyl;
R4 is C8-C16 alkyl;
X−, an anion, is Cl; and
a balance of a carrier.