# US 2021/0276784 A1 · Storage product and method

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- Number: US 2021/0276784 A1
- Document ID: US20210276784A1
- Status: Published application
- Kind: A1
- Application number: 17/219,991
- Filed: 2021-04-01
- Published: 2021-09-09
- Earliest claimed: 2014-03-18
- Assignees: Coolsan Hygiene Solutions Pty Ltd
- Applicants: Coolsan Hygiene Solutions Pty Ltd
- Inventors: Gary Roy Erickson
- Web page: https://patentgrep.com/patent/US20210276784A1

## CPC

- B65D 81/264: {for absorbing liquids}
- A01N 25/18: Vapour or smoke emitting compositions with delayed or sustained release
- A61L 2/20: Gaseous substances, e.g. vapours
- A61L 2/208: Hydrogen peroxide
- A61L 9/12: Apparatus, e.g. holders, therefor
- F24F 3/1411: {by absorbing or adsorbing water, e.g. using an hygroscopic desiccant}
- A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
- 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
- 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
- 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)
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

A method for disinfecting or preventing microbial damage and/or moisture damage of goods and other items prone to damage caused by microbes and/or water, such as, for example, foodstuffs and other putrescible items, pharmaceuticals and other medical/veterinary products, paper and paper/fibre-board products, timber and wood products, electrical/electronic devices, clothes and fabrics, includes the use of a moisture-removing material and an antimicrobial vapour-generating material. The method is particularly suitable for use with such goods and other items when contained within storage spaces (e.g. a package, refrigerator, wardrobe or shipping container). The method includes disinfecting items such as food containers and food preparation implements.

## Claims

### Claim 1

A method to prevent microbial and/or water damage of goods and other items contained within a storage space, wherein said method comprises:
(1) providing a device comprising a container which houses
(i) a moisture-removing material, and
(ii) an antimicrobial vapour-generating material, wherein the antimicrobial vapour-generated material is selected from the group consisting of sodium percarbonate, hydrated sodium perborate, organic or inorganic peroxy salts, and combinations thereof,
in an arrangement such that water added to the device or absorption and/or adsorption of water vapour by the moisture-removing material causes the antimicrobial vapour-generating material to generate an antimicrobial vapour of hydrogen peroxide and/or other reactive oxygen species; and
(2) introducing said device into the storage space.

### Claim 2 (depends on 1)

The method of claim 1, wherein the moisture-removing material is selected from the group consisting of silica gel, calcium chloride and calcium sulphate.

### Claim 3 (depends on 1)

The method of claim 1, wherein the antimicrobial vapour-generating material is sodium percarbonate.

### Claim 4 (depends on 1)

The method of claim 1, wherein the container further houses a solid substrate having specific surface area (SSA) of >100 m2 g−1.

### Claim 5 (depends on 4)

The method of claim 4, wherein the substrate is precipitated silica.

### Claim 6 (depends on 4)

The method of claim 4, wherein the moisture-removing material, antimicrobial vapour-generating material and substrate is provided as a composition comprising, by percentage weight of the composition, 20-40 wt % of the moisture-removing material, 10-20 wt % of the antimicrobial vapour-generating material and 45-65 wt % of the substrate.

### Claim 7 (depends on 1)

The method of claim 1, wherein the container is vapour permeable.

### Claim 8 (depends on 7)

The method of claim 7, wherein the device is in the form of a sealed sachet.

### Claim 9

A method of disinfecting an item, wherein said method comprises:
(1) providing a device comprising
(i) a moisture-removing material, and
(ii) an antimicrobial vapour-generating material, wherein the antimicrobial vapour-generated material is selected from the group consisting of sodium percarbonate, hydrated sodium perborate, organic or inorganic peroxy salts, and combinations thereof,
in an arrangement such that water added to the device or absorption and/or adsorption of water vapour by the moisture-removing material causes the antimicrobial vapour-generating material to generate an antimicrobial vapour of hydrogen peroxide and/or other reactive oxygen species (ROS); and
(2) introducing said device into a disinfection chamber with the said item.

### Claim 10 (depends on 9)

The method of claim 9, which further comprises:
(3) heating the device within the disinfection chamber.
