# US 2023/0090798 A1 · Hypochlorous acid water preparation agent, hypochlorous acid water preparation package, and hypochlorous acid water production method

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- Number: US 2023/0090798 A1
- Document ID: US20230090798A1
- Status: Published application
- Kind: A1
- Application number: 17/994,218
- Filed: 2022-11-25
- Published: 2023-03-23
- Earliest claimed: 2021-04-22
- Assignees: Crown Limited
- Applicants: Crown Company Limited
- Inventors: MIN (KENNETH MIN) JO (ZEE); NATSUKO JO (ZEE); MITSUTAKA (CHRISTOPHER) JO (ZEE)
- Web page: https://patentgrep.com/patent/US20230090798A1

## CPC

- C01B 11/04: Hypochlorous acid
- C25B 9/17: Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C02F 1/461: by electrolysis
- C25B 1/26: Chlorine; Compounds thereof (by simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine C25B1/34)
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- C25B: ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F13/00; single-crystal growth C30B)
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

A hypochlorous acid water preparation agent merely contains elements without concern for the human body, allows hypochlorous acid water to be prepared without effort, and can be stored or transported easily. The hypochlorous acid water preparation agent is an additive for preparing hypochlorous acid water by electrolyzing an electrolytic solution obtained by dissolving an electrolyte in a specified amount of water. The additive consists of sodium chloride, sodium diacetate, and optional sodium hydrogencarbonate. The additive is in powder form, particle form, granule form, or tablet form.

## Claims

### Claim 1

A hypochlorous acid water preparation agent being an additive for preparing hypochlorous acid water by electrolyzing an electrolytic solution obtained by dissolving an electrolyte in a specified amount of water, the additive consisting of:
sodium chloride;
sodium diacetate; and
sodium hydrogencarbonate,
wherein the additive is in powder form, particle form, granule form, or tablet form, and
the additive has, relative to the water having a volume of 300 mL,
a sodium chloride content A (gw) satisfying 0.07≤A≤0.5,
a sodium diacetate content X (gw) satisfying 0.3≤X, and
a sodium hydrogencarbonate content Y (gw) satisfying Y≤0.67X.

### Claim 2

A hypochlorous acid water preparation agent being an additive for preparing hypochlorous acid water by electrolyzing an electrolytic solution obtained by dissolving an electrolyte in a specified amount of water, the additive consisting of:
sodium chloride;
sodium diacetate; and
sodium hydrogencarbonate,
wherein the additive is in powder form, particle form, granule form, or tablet form, and
the additive has, relative to the water having a volume of 300 mL,
a sodium chloride content A (gw) satisfying 0.07≤A≤0.5,
a sodium diacetate content X (gw) satisfying 0.15≤X<0.3, and
a sodium hydrogencarbonate content Y (gw) satisfying Y≤(X−0.1).

### Claim 3

A hypochlorous acid water preparation agent being an additive for preparing hypochlorous acid water by electrolyzing an electrolytic solution obtained by dissolving an electrolyte in a specified amount of water, the additive consisting of:
sodium chloride;
sodium diacetate; and
sodium hydrogencarbonate,
wherein the additive is in powder form, particle form, granule form, or tablet form, and
the additive has, relative to the water having a volume of 300 mL,
a sodium chloride content A (gw) satisfying 0.07≤A≤0.3,
a sodium diacetate content X (gw) satisfying 0.08≤X<0.15, and
a sodium hydrogencarbonate content Y (gw) satisfying Y≤(0.43X−0.014).

### Claim 4

A hypochlorous acid water preparation agent being an additive for preparing hypochlorous acid water by electrolyzing an electrolytic solution obtained by dissolving an electrolyte in a specified amount of water, the additive consisting of:
sodium chloride;
sodium diacetate; and
sodium hydrogencarbonate,
wherein the additive is in powder form, particle form, granule form, or tablet form, and
the additive has, relative to the water having a volume of 300 mL,
a sodium chloride content A (gw) satisfying 0.07≤A≤0.5,
a sodium diacetate content X (gw) satisfying 0.2≤X, and
a sodium hydrogencarbonate content Y (gw) satisfying Y≤0.05.

### Claim 5

A hypochlorous acid water preparation agent being an additive for preparing hypochlorous acid water being an electrolyzed solution with an electrolytic device including a diaphragmless electrolytic cell for passing an electric current of a predetermined value for a predetermined time through an aqueous solution consisting of the additive and a predetermined amount of water, the additive consisting of:
sodium chloride; and
sodium diacetate,
wherein the additive is in powder form, particle form, granule form, or tablet form, and
the additive has, relative to the water having a volume of 300 mL,
a sodium chloride content A (gw) satisfying 0.07≤A≤0.5,
a sodium diacetate content X (gw) satisfying 0.08≤X, and
the hypochlorous acid water has a pH value within a range of 4.5 to 6.5.

### Claim 6 (depends on 1)

A hypochlorous acid water preparation package, comprising:
the hypochlorous acid water preparation agent according to claim 1; and
a hermetic container storing the hypochlorous acid water preparation agent.

### Claim 7 (depends on 2)

A hypochlorous acid water preparation package, comprising:
the hypochlorous acid water preparation agent according to claim 2; and
a hermetic container storing the hypochlorous acid water preparation agent.

### Claim 8 (depends on 3)

A hypochlorous acid water preparation package, comprising:
the hypochlorous acid water preparation agent according to claim 3; and
a hermetic container storing the hypochlorous acid water preparation agent.

### Claim 9 (depends on 4)

A hypochlorous acid water preparation package, comprising:
the hypochlorous acid water preparation agent according to claim 4; and
a hermetic container storing the hypochlorous acid water preparation agent.

### Claim 10 (depends on 5)

A hypochlorous acid water preparation package, comprising:
the hypochlorous acid water preparation agent according to claim 5; and
a hermetic container storing the hypochlorous acid water preparation agent.

### Claim 11 (depends on 1)

A hypochlorous acid water production method, comprising:
merely adding the hypochlorous acid water preparation agent according to claim 1 to a specified amount of water to produce an electrolytic solution; and
electrolyzing the electrolytic solution in a diaphragmless electrolytic cell to produce hypochlorous acid water.

### Claim 12 (depends on 2)

A hypochlorous acid water production method, comprising:
merely adding the hypochlorous acid water preparation agent according to claim 2 to a specified amount of water to produce an electrolytic solution; and
electrolyzing the electrolytic solution in a diaphragmless electrolytic cell to produce hypochlorous acid water.

### Claim 13 (depends on 3)

A hypochlorous acid water production method, comprising:
merely adding the hypochlorous acid water preparation agent according to claim 3 to a specified amount of water to produce an electrolytic solution; and
electrolyzing the electrolytic solution in a diaphragmless electrolytic cell to produce hypochlorous acid water.

### Claim 14 (depends on 4)

A hypochlorous acid water production method, comprising:
merely adding the hypochlorous acid water preparation agent according to claim 4 to a specified amount of water to produce an electrolytic solution; and
electrolyzing the electrolytic solution in a diaphragmless electrolytic cell to produce hypochlorous acid water.

### Claim 15 (depends on 5)

A hypochlorous acid water production method, comprising:
merely adding the hypochlorous acid water preparation agent according to claim 5 to a specified amount of water to produce an electrolytic solution; and
electrolyzing the electrolytic solution in a diaphragmless electrolytic cell to produce hypochlorous acid water.