# US 2013/0157922 A1 · Water-based gel with low syneresis

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- Number: US 2013/0157922 A1
- Document ID: US20130157922A1
- Status: Published application
- Kind: A1
- Application number: 13/711,040
- Filed: 2012-12-11
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Assignees: The Dial Corporation
- Inventors: Tyler R. Mikkelsen; Richard F. Theiler
- Web page: https://patentgrep.com/patent/US20130157922A1

## CPC

- A61L 9/012: characterised by being in a special form, e.g. gels, emulsions {(A61L9/048 takes precedence)}
- 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)

## Abstract

The present invention is a water-based carrageenan gel composition that exhibits remarkable resistance against syneresis and mottling, made possible by the addition of relatively small amounts of nonionic cellulose derivatives such as methyl hydroxyethyl cellulose.

## Claims

### Claim 1

A stable water-based gel composition comprising: (a) from 0.001 wt. % to 5 wt. % fragrance; (b) from 0.1 wt. % to 10 wt. % κ-carrageenan from Kappaphycus alverezii “cottonii”; (c) from 0.5 wt. % to 1.5 wt. % nonionic cellulose derivative; and, (d) remainder water.

### Claim 2 (depends on 1)

The composition of claim 1, wherein said nonionic cellulose derivative is methyl hydroxyethyl cellulose.

### Claim 3 (depends on 2)

The composition of claim 2, further including hydroxyethyl cellulose.

### Claim 4 (depends on 1)

The composition of claim 1, further including inorganic salts selected from the group consisting of potassium salts, and calcium salts, and mixtures thereof.

### Claim 5

A method of increasing the freeze-thaw stability of a κ-carrageenan water-based gel, said method comprising the step of adding methyl hydroxyethyl cellulose to a water dispersion of κ-carrageenan and fragrance.

### Claim 6

A use of methyl hydroxyethyl cellulose as a stabilizer for κ-carrageenan water-based gels.