# US 8,785,368 B2 · Solid soap comprising trimethylglycine

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- Number: US 8,785,368 B2
- Document ID: US8785368B2
- Status: Granted
- Kind: B2
- Application number: 13/802,983
- Filed: 2013-03-14
- Published: 2013-09-19
- Granted: 2014-07-22
- Earliest claimed: 2012-03-16
- Assignees: P & PF Co., Ltd.
- Applicants: P & PF Co., Ltd.
- Inventors: Tetsuo Nishina; Takahito Makita; Tomoko Toda; Takahiro Okuda; Yoshinobu Saito
- Web page: https://patentgrep.com/patent/US8785368B2

## CPC

- C11D 17/0095: {Solid transparent soaps or detergents}
- C11D 3/33: Amino carboxylic acids
- C11D 10/04: based on mixtures of surface-active non-soap compounds and soap
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

The object of the present invention is to improve the solidification point and the hardness of a soap of the fatty acid soap series wherein a large amount of myristic acid is blended. The solid soap of the present invention to achieve the above-described object is characterized by comprising a fatty acid soap and 1 to 8 mass % of betaine, and in that the content of myristic acid is 50 mass % or more in the total fatty acid of the fatty acid soap.

## Claims

### Claim 1

A solid soap comprising:
a fatty acid soap, and
1 to 5 mass % of trimethylglycine,
wherein the content of myristic acid is 50 mass % or more in the total fatty acid of the fatty acid soap.

### Claim 2 (depends on 1)

The solid soap according to claim 1, wherein a mole ratio of sodium/potassium is from 80/20 to 50/50.

### Claim 3 (depends on 1)

The solid soap according to claim 1, comprising:
20 to 70 mass % of a fatty acid soap part, and
30 to 70 mass % of a sugar and polyol part,
wherein no ethanol is contained in the solid soap.

### Claim 4 (depends on 3)

The solid soap according to claim 3, wherein the solid soap is transparent.

### Claim 5 (depends on 2)

The solid soap according to claim 2, comprising:
20 to 70 mass % of a fatty acid soap part, and
30 to 70 mass % of a sugar and polyol part,
wherein the solid soap is transparent and no ethanol is contained in the solid soap.