# US 9,040,475 B2 · Intercalated bleach compositions, related methods of manufacture and use

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- Number: US 9,040,475 B2
- Document ID: US9040475B2
- Status: Granted
- Kind: B2
- Application number: 14/050,043
- Filed: 2013-10-09
- Published: 2015-04-09
- Granted: 2015-05-26
- Earliest claimed: 2013-10-09
- Assignees: The Clorox Company
- Applicants: The Clorox Company
- Inventors: Evan Rumberger; Marisa MacNaughtan; William L. Smith; Kelsey Kornaus
- Web page: https://patentgrep.com/patent/US9040475B2

## CPC

- C11D 3/3953: {Inorganic bleaching agents (C11D3/3951 takes precedence)}
- C11D 1/00: Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D 3/04: Water-soluble compounds
- C11D 3/044: {Hydroxides or bases}
- C11D 3/046: {Salts}
- C11D 3/10: Carbonates {; Bicarbonates}
- C11D 3/12: Water-insoluble compounds
- C11D 3/3956: {Liquid compositions}
- C11D 17/0073: {Tablets}
- C11D 17/06: Powder; Flakes; Free-flowing mixtures; Sheets
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The invention relates to compositions, methods of use, and methods of manufacture for an intercalated bleach compound and compositions thereof. The intercalated bleach compound has the formula Mx(OCl)y(O)m(OH)n where M is an alkaline earth metal such as magnesium, calcium or mixture thereof. The values of x and y independently equal any number greater than or equal to 1 (e.g., 1, 2, 3, 4, etc.), and m and n independently equal any number greater than or equal to 0 (e.g., 0, 1, 2, 3, 4, etc.), but m and n are not both 0. In addition, the molar ratio of the alkaline earth metal (e.g., magnesium or calcium) to hypochlorite is at least 3:1. In other words, x is ≧3y. The compounds exhibit excellent stability, little or no chlorine bleach odor, exhibit excellent pH buffering characteristics, and less reactivity with organic materials as compared to alternative chlorine bleach products.

## Claims

### Claim 1

A composition comprising:
(a) a bleach compound having the formula:
Mx(OCl)y(O)m(OH)n
wherein M is selected from the group consisting of magnesium, calcium and mixtures thereof;
wherein x and y independently equal any number greater than or equal to 1;
wherein m and n independently equal any number greater than or equal to 0, but m and n are not both 0; and
wherein x is ≧3y.

### Claim 2 (depends on 1)

The composition of claim 1, wherein M is a magnesium.

### Claim 3 (depends on 1)

The composition of claim 1, wherein M is a calcium.

### Claim 4 (depends on 1)

The composition of claim 1, further comprising a surfactant.

### Claim 5 (depends on 1)

The composition of claim 1, further comprising an acid.

### Claim 6 (depends on 1)

The composition of claim 1, further comprising one or more alkaline earth metal salts or alkali metal salts.

### Claim 7 (depends on 6)

The composition of claim 6, wherein alkali metal salts or alkaline earth metal salts are selected from the group consisting of alkaline earth oxides, alkaline earth hydroxides, alkaline earth carbonates, alkaline earth bicarbonates, alkaline earth chlorides, alkali chlorides, alkali carbonates, alkali bicarbonates, and combinations thereof.

### Claim 8 (depends on 7)

The composition of claim 7, wherein alkali or alkaline earth salts are selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium chloride trihydroxide, magnesium chloride pentahydroxide, magnesium carbonate, magnesium chloride, calcium oxide, calcium hydroxide, calcium carbonate, calcium chloride, sodium chloride, sodium carbonate, sodium bicarbonate, and combinations thereof.

### Claim 9 (depends on 1)

The composition of claim 1, wherein 2m+n≧5y.

### Claim 10 (depends on 1)

The composition of claim 1, wherein x=0.5y+m+0.5n.

### Claim 11 (depends on 1)

The composition of claim 1, wherein x, y, m, and n are integers.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the bleach compound has a range of available chlorine from about 3% to about 25%.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the bleach compound is a hydrate.

### Claim 14 (depends on 1)

The composition of claim 1, further comprising at least one member selected from the group consisting of builders, surfactants, water soluble polymers, acids, fillers, diluents, desiccants, buffers, solid processing aids, preservatives, colorants, anti-corrosion inhibitors, dyes, fragrances, hydrotropes, polymer dispersants, chelating agents, water-swellable polymers, disinfectants, antimicrobials, essential oils, enzymes, and combinations thereof.

### Claim 15 (depends on 1)

The composition of claim 1, wherein the composition is a solid.

### Claim 16 (depends on 15)

The composition of claim 15, wherein the composition is in powder, granule, or tablet form.

### Claim 17

A composition comprising:
(a) a bleach compound having the formula:
Mgx(OCl)y(O)m(OH)n
wherein x and y independently equal any number greater than or equal to 1;
wherein m and n independently equal any number greater than or equal to 0, but m and n are not both 0; and
wherein x is ≧3y.

### Claim 18

A composition comprising:
(a) a bleach compound having the formula:
Mgx(OCl)y(O)m(OH)n
wherein x and y independently equal any number greater than or equal to 1;
wherein m and n independently equal any number greater than or equal to 0, but m and n are not both 0; and
wherein x is ≧3y; and
(b) a surfactant.

### Claim 19 (depends on 18)

The composition of claim 18, further comprising an acid.

### Claim 20 (depends on 18)

The composition of claim 18, wherein the composition is a solid.
