# US 2019/0169552 A1 · Water-Soluble Encapsulated Chlorinating Agent

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- Number: US 2019/0169552 A1
- Document ID: US20190169552A1
- Status: Published application
- Kind: A1
- Application number: 15/829,129
- Filed: 2017-12-01
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Inventors: Scott Schaneville
- Web page: https://patentgrep.com/patent/US20190169552A1

## CPC

- C11D 17/042: {Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions}
- A01N 25/34: Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
- A01N 59/00: Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- C11D 3/28: Heterocyclic compounds containing nitrogen in the ring
- C11D 3/3955: {Organic bleaching agents (C11D3/3951 takes precedence)}
- C11D 3/48: Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
- C11D 17/0039: {Coated compositions or coated components in the compositions, (micro)capsules}
- A01N 43/707: 1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
- A01N 2300/00: Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- 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

## Abstract

The present invention is directed to materials and method of encapsulating chemical agents. In particular, the present invention is directed to compositions and methods of encapsulating a water chlorinating agent in a water soluble polymer encapsulant.

## Claims

### Claim 1

A composition, comprising:
a water-soluble polymeric encapsulant; and
a water chlorinating agent encapsulated in the water soluble polymer encapsulant.

### Claim 2 (depends on 1)

The composition of claim 1, the water chlorinating agent comprising an alkali metal dichloroisocyanurate salt.

### Claim 3 (depends on 1)

The composition of claim 1, the water chlorinating agent comprising sodium dichloroisocyanurate.

### Claim 4 (depends on 1)

The composition of claim 1, formulated in a unit or pod dosage form.

### Claim 5 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being a water-soluble film.

### Claim 6 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being a flexible water-soluble film.

### Claim 7 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being a self-supporting water-soluble film.

### Claim 8 (depends on 1)

The composition of claim 1, the water chlorinating agent being stable or inert with respect to the water-soluble polymeric encapsulant.

### Claim 9 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant rendering the encapsulated water chlorinating agent stable or inert.

### Claim 10 (depends on 1)

The composition of claim 1, further comprising one or more of: an active compound, a disinfectant, an antimicrobial, a sporocide, a stabilizing agent, and a colorant.

### Claim 11 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being configured to provide timed release of the encapsulated water chlorinating agent over a period of about 1 minute to about 4 weeks.

### Claim 12 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being configured to provide time-delayed release of the encapsulated water chlorinating agent with a release time beginning from about 1 minute to about 4 weeks.

### Claim 13 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being formed into a plurality of films, at least a first film in the plurality of films encapsulating the water chlorinating agent, and a second film in the plurality of films encapsulating nothing, or one or more of the water chlorinating agent, an active compound, a disinfectant, an antimicrobial, a sporocide, a stabilizing agent, and a colorant.

### Claim 14 (depends on 13)

The composition of claim 13, the plurality of films being configured for sequential dissolution.

### Claim 15 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant being formed into a plurality of films, at least a first film in the plurality of films encapsulating the water chlorinating agent, and a second film in the plurality of films encapsulating one or more of the water chlorinating agent, an active compound, a disinfectant, an antimicrobial, a sporocide, a stabilizing agent, and a colorant, the plurality of films being configured for sequential dissolution effective to sequentially release an encapsulant in each of the plurality of films.

### Claim 16 (depends on 1)

The composition of claim 1, the water-soluble polymeric encapsulant comprising one or more polymers, plasticizers, emulsifiers, bonding agents, bulking agents, fillers, and stabilizing agents.

### Claim 17 (depends on 1)

The composition of claim 1, the composition having a density greater than 1 gram per cc.

### Claim 18 (depends on 1)

The composition of claim 1, the composition having a density less than 1 gram per cc.

### Claim 19 (depends on 1)

The composition of claim 1, formed in a unit dose configuration effective to enclose one or more hollow pocket that give the composition an effective density less than 1 gram per cc.

### Claim 20

A method, comprising:
providing a composition, comprising:
a water-soluble polymeric encapsulant; and
a water chlorinating agent encapsulated in the water soluble polymer encapsulant; and
chlorinating a portion of water by contacting the composition to the portion of water effective to cause at least partial dissolution of the water-soluble polymeric encapsulant effective to release the encapsulated water chlorinating agent to the portion of water.

### Claim 21 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)

The method of claim 20, comprising providing the composition according to any of claims 1-19.

### Claim 22

A method, comprising:
providing a water-soluble polymeric encapsulant;
providing a water chlorinating agent; and
encapsulating the water chlorinating agent in the water soluble polymer encapsulant.

### Claim 23 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22)

The method of claim 22, comprising encapsulating the water chlorinating agent in the water soluble polymer encapsulant to form the composition according to any of claims 1-19.

### Claim 24

A kit, comprising:
a composition, comprising:
a water-soluble polymeric encapsulant; and
a water chlorinating agent encapsulated in the water soluble polymer encapsulant; and instructions, the instructions directing a user to chlorinate a portion of water by contacting the composition to the portion of water effective to cause at least partial dissolution of the water-soluble polymeric encapsulant effective to release the encapsulated water chlorinating agent to the portion of water.

### Claim 25 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 24)

The kit of claim 24, comprising the composition according to any of claims 1-19.
