# US 11,304,416 B2 · Cyclopentasiloxane and cationic biocide as a formulation additive to enhance persistent sanitizing and miscibility

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- Number: US 11,304,416 B2
- Document ID: US11304416B2
- Status: Granted
- Kind: B2
- Application number: 16/581,109
- Filed: 2019-09-24
- Published: 2020-03-26
- Granted: 2022-04-19
- Earliest claimed: 2018-09-24
- Assignees: Relevo Labs, LLC
- Applicants: Relevo, Inc
- Inventors: Jeffrey L. Southard; Brian K. Southard
- Web page: https://patentgrep.com/patent/US11304416B2

## CPC

- A01N 33/12: Quaternary ammonium compounds
- A01N 55/00: Biocides, pest repellants or attractants, or plant growth regulators, containing organic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen and sulfur (containing organo-phosphorus compounds A01N57/00)
- A61K 8/34: Alcohols
- A61K 8/416: {Quaternary ammonium compounds (A61K8/35 takes precedence)}
- A61K 8/42: Amides
- A61K 8/43: Guanidines
- A61K 8/585: {Organosilicon compounds}
- A61K 8/893: modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone
- A61Q 17/005: {Antimicrobial preparations}
- A61Q 19/10: Washing or bathing preparations
- A61K 2800/31: Anhydrous
- A61K 2800/882: Mixing prior to application
- 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
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

A composition for a formulation additive that is water free that can be added to a formulation or other solution to increase its sanitizing persistence capabilities. The composition can include, by weight, from about 20% to about 70% cyclomethicone; from about 16% to about 35% quaternary ammonium salt; from about 16% to about 50% solvent; and from about 0% to about 35% emulsifier.

## Claims

### Claim 1

A composition, that can be added to another formulation or solution and creates a new formulation that is suitable for use on human skin and other surfaces consisting essentially of:
(a) from about 16% to about 35% by weight of a first germicide, said first germicide being a C14 analog of benzalkonium chloride (BAKC14);
(b) cyclopentasiloxane at a concentration of 30 to 70% by weight;
(c) a solvent selected from ethyl alcohol or isopropyl alcohol at a concentration up to 17%; and
(d) up to about 35% by weight of silicone glycerol.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the solvent is essentially anhydrous and 200 proof ethanol, further comprising the additive Bitrix.

### Claim 3 (depends on 1)

The composition of claim 1, further comprising (e) a second germicide, wherein the second germicide is a germicidal quaternary ammonium salt (QUAT) or non-QUAT.

### Claim 4 (depends on 3)

The composition of claim 3, wherein the second germicide is a non-QUAT Polyhexamethylene biguanide (PHMB) or Triclosan.