# US 9,040,471 B2 · Compressed gas aerosol composition comprising a non-ionic surfactant in a steel can

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- Number: US 9,040,471 B2
- Document ID: US9040471B2
- Status: Granted
- Kind: B2
- Application number: 14/555,767
- Filed: 2014-11-28
- Published: 2015-03-26
- Granted: 2015-05-26
- Earliest claimed: 2012-03-16
- Assignees: S.C. Johnson & Son, Inc.
- Applicants: S. C. Johnson & Son, Inc.
- Inventors: Bhaveshkumar Shah
- Web page: https://patentgrep.com/patent/US9040471B2

## CPC

- A61L 9/14: using sprayed or atomised substances {including air-liquid contact processes}
- A61L 2/20: Gaseous substances, e.g. vapours
- B05B 9/01: Spray pistols, {discharge devices}(B05B9/03 takes precedence)
- B65D 83/141: specially adapted for specific contents or propellants
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## Abstract

An aqueous compressed gas aerosol formulation in combination with a lined steel can, which may also optionally be tin plated, to provide corrosion stability, fragrance stability and color stability. An aerosol formulation of particular advantage for use is an air and/or fabric treatment formulation. The combination provides a compatibility which allows for the ability to use a broader fragrance pallet for the air and/or fabric treatment formulation which is aqueous based in major proportion. The formulation includes, in addition to an aqueous carrier, a fragrance, nonionic surfactant(s) or a blend of nonionic surfactant(s) and cationic surfactant(s), a compressed gas propellant(s), pH adjuster(s), and corrosion inhibitor(s). The formulation has a pH of about 8 to less than 10. The corrosion inhibitor(s) is (are) mild in strength and used in a minor amount.

## Claims

### Claim 1

An aerosol system comprising:
(a) a spray dispenser in combination with
(b) an aqueous-based product contained in said dispenser for dispensing therefrom, wherein said spray dispenser comprises:
(i) a spray head adapted to dispense said product and
(ii) a steel container including an interior for holding said product, wherein walls forming said interior in contact with said product have a lining thereon, said lining being an organic coating or a polymeric laminate;
wherein said product comprises
(1) about 0.5 to about 2 wt. % of nonionic surfactant,
(2) a cationic surfactant present and in an amount up to about 3 wt. %,
(3) about 0.1 to about 2 wt. % of a fragrance component,
(4) about 0.5 to about 2 wt. % of compressed gas propellant,
(5) pH adjuster in an amount to achieve a pH of about 8 to less than 10 for the product,
(6) about 0.01 to about 0.5 wt. % of corrosion inhibitor, and
(7) about 80 to less than 100 wt. % water;
wherein components (1) to (7) of the product are present in amounts which in combination with the lining in the steel container provide said product as visually clear or substantially non-colored to an extent not to discolor a surface which the product contacts upon dispensing; and
wherein anionic, amphoteric and zwitterionic surfactants are excluded from the system.

### Claim 2

An aerosol product comprising in combination
(a) steel can with aerosol dispensing top, body and base, wherein said steel can has an interior surface having thereon a lining which is an organic coating or polymeric laminate, and, optionally a tin coating, wherein when the tin coating is present, the lining is provided over top of said tin coating; and
(b) a composition consisting of
(i) water in an amount greater than about 80 wt. % but less than 100 wt. %,
(ii) about 0.5 to about 2 wt. % of compressed gas propellant,
(iii) about 0.1 to about 2 wt. % of fragrance component,
(iv) pH adjuster component in an amount sufficient to provide said composition with a pH of about 8 to less than 10,
(v) corrosion inhibitor component in an amount greater than 0, but equal to or less than about 0.5 wt. % comprising one or more of a phosphate, nitrite or silicate corrosion inhibiting compound,
(vi) about 0.5 to about 2 wt. % of surfactant component which is either (1) at least one nonionic surfactant or (2) a blend of at least one nonionic surfactant and at least one cationic surfactant,
(vii) optionally a solvent selected from a group consisting of alcohols and glycols,
(viii) optionally a buffer component, and
(ix) optionally a preservative component;
wherein said composition is contained in said steel can and contacts said lining on said interior surface of said steel can;
wherein said composition excludes anionic, amphoteric and zwitterionic surfactants.

### Claim 3 (depends on 1)

The system of claim 1, wherein said product consists of
(i) about 80 to about 99 wt. % of said water;
(ii) about 0.5 to about 2 wt. % of said compressed gas propellant;
(iii) about 0.1 to about 2 wt. % of said fragrance component;
(iv) said pH adjuster in an amount sufficient to provide said composition with a pH of about 8 to about 9.5;
(v) about 0.01 to about 0.5 wt. % of said corrosion inhibitor;
(vi) about 0.5 to about 2 wt. % of said nonionic surfactant alone or in combination with said cationic surfactant;
(vii) about 0.1 to about 6 wt. % of solvent;
(viii) about 0.01 to about 0.5 wt. % of buffer, and
(ix) about 0.01 to about 1.0 wt. % of preservative.

### Claim 4 (depends on 1)

The system of claim 1 wherein said pH is about 8.5 to about 9.5.

### Claim 5 (depends on 1)

The system of claim 1 wherein said VOC is in a range of 0.1% to 5.5%.

### Claim 6 (depends on 2)

The product of claim 2 wherein said VOC is in a range of 0.1% to 5.5%.

### Claim 7 (depends on 1)

The system of claim 1 wherein said VOC is equal to or less than 0.1%.

### Claim 8 (depends on 2)

The product of claim 2 wherein said VOC is equal to or less than 0.1%.

### Claim 9 (depends on 1)

The system of claim 1 wherein said lining comprises epoxy-urea.

### Claim 10 (depends on 2)

The product of claim 2 wherein said lining comprises epoxy-urea.

### Claim 11 (depends on 1)

The system of claim 1 wherein said lining comprises epoxy or epoxy-phenol or vinyl or an amide-imide.

### Claim 12 (depends on 2)

The product of claim 2 wherein said lining comprises epoxy or epoxy-phenol or vinyl or an amide-imide.

### Claim 13 (depends on 1)

The system of claim 1 wherein said compressed gas propellant is selected from a group consisting of nitrogen, argon, air, nitrous oxide, carbon dioxide, methane, ethane or mixtures thereof.

### Claim 14 (depends on 2)

The product of claim 2 wherein said compressed gas propellant is selected from a group consisting of nitrogen, argon, air, nitrous oxide, carbon dioxide, methane, ethane or mixtures thereof.

### Claim 15 (depends on 1)

The system of claim 1 wherein said compressed gas propellant is nitrogen or argon.

### Claim 16 (depends on 2)

The product of claim 2 wherein said compressed gas propellant is nitrogen or argon.

### Claim 17 (depends on 1)

The system of claim 1 wherein said nonionic surfactant is one or more secondary alkoxylated alcohol and/or polyalkoxylated hydrogenated castor oil.

### Claim 18 (depends on 3)

The system of claim 3 wherein the buffer is an alkali metal bicarbonate or a phosphate.

### Claim 19 (depends on 3)

The system of claim 3 wherein the solvent is selected from the group consisting of alcohols and glycols.

### Claim 20 (depends on 3)

The system of claim 3 wherein the solvent is propylene glycol.

### Claim 21

An aerosol system comprising:
(a) a spray dispenser in combination with
(b) an aqueous-based product contained in said dispenser for dispensing therefrom;
wherein said spray dispenser comprises:
(i) a spray head adapted to dispense said product and
(ii) a steel container including an interior for holding said product, wherein walls forming said interior in contact with said product have a lining thereon, said lining being an organic coating or a polymeric laminate;
wherein said product consists of:
(1) about 0.5 to about 2 wt. % of nonionic surfactant,
(2) 0 to about 3 wt. % of cationic surfactant,
(3) about 0.1 to about 2 wt. % of a fragrance component,
(4) about 0.5 to about 2 wt. % of compressed gas propellant,
(5) pH adjuster in an amount to achieve a pH of about 8 to less than 10 for the product,
(6) about 0.01 to about 0.5 wt. % of corrosion inhibitor,
(7) about 80 to less than 100 wt. % water;
(8) optionally a solvent selected from the group consisting of alcohols and glycols;
(9) optionally a buffer component; and
(10) optionally a preservative component;
wherein components (1) to (10) of the product are present in amounts which in combination with the lining in the steel container provide said product as visually clear or substantially non-colored to an extent not to discolor a surface which the product contacts upon dispensing; and
wherein anionic, amphoteric and zwitterionic surfactants are excluded from the system.

### Claim 22 (depends on 21)

The system of claim 21, wherein said product consists of
(i) about 80 to about 99 wt. % of said water;
(ii) about 0.5 to about 2 wt. % of said compressed gas propellant;
(iii) about 0.1 to about 2 wt. % of said fragrance component;
(iv) said pH adjuster in an amount sufficient to provide said composition with a pH of about 8 to about 9.5;
(v) about 0.01 to about 0.5 wt. % of said corrosion inhibitor;
(vi) about 0.5 to about 2 wt. % of said nonionic surfactant alone or in combination with said cationic surfactant;
(vii) about 0.1 to about 6 wt. % of solvent;
(viii) about 0.01 to about 0.5 wt. % of buffer, and
(ix) about 0.01 to about 1.0 wt. % of preservative.

### Claim 23 (depends on 21)

The system of claim 21 wherein said pH is about 8.5 to about 9.5.

### Claim 24 (depends on 21)

The system of claim 21 wherein said VOC is in a range of 0.1% to 5.5%.

### Claim 25 (depends on 21)

The system of claim 21 wherein said VOC is equal to or less than 0.1%.

### Claim 26 (depends on 21)

The system of claim 21 wherein said lining comprises epoxy-urea.

### Claim 27 (depends on 21)

The system of claim 21 wherein said lining comprises epoxy or epoxy-phenol or vinyl or an amide-imide.

### Claim 28 (depends on 21)

The system of claim 21 wherein said compressed gas propellant is selected from the group consisting of nitrogen, argon, air, nitrous oxide, carbon dioxide, methane, ethane or mixtures thereof.

### Claim 29 (depends on 21)

The system of claim 21 wherein said compressed gas propellant is nitrogen or argon.

### Claim 30 (depends on 21)

The system of claim 21 wherein said nonionic surfactant is one or more secondary alkoxylated alcohol and/or polyalkoxylated hydrogenated castor oil.

### Claim 31 (depends on 21)

The system of claim 21 wherein the buffer is present and is an alkali metal bicarbonate or a phosphate.

### Claim 32 (depends on 21)

The system of claim 21 wherein the solvent is present and is propylene glycol.