# US 8,772,223 B2 · Composition for solid washing agent, and solid washing agent

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,772,223 B2
- Document ID: US8772223B2
- Status: Granted
- Kind: B2
- Application number: 13/057,779
- Filed: 2010-02-26
- Published: 2012-12-06
- Granted: 2014-07-08
- Earliest claimed: 2010-02-26
- Assignees: P & PF Co., Ltd.
- Applicants: Shogo Nagura; Uhei Tamura; Tomoko Toda; Yoshinobu Saito; Tetsuo Nishina
- Inventors: Shogo Nagura; Uhei Tamura; Tomoko Toda; Yoshinobu Saito; Tetsuo Nishina
- Web page: https://patentgrep.com/patent/US8772223B2

## CPC

- C11D 3/373: {containing silicones}
- C11D 1/10: Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
- C11D 17/0047: {Detergents in the form of bars or tablets}
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A solid washing agent that is hard even in a high-temperature, high-humidity atmosphere or in a similar environment and that can prevent melting away and stickiness is provided. A composition for a solid washing agent containing an N-long chain acyl acidic amino acid salt as a component of an ingredient wherein the salt for the N-long chain acyl acidic amino acid salt is composed of an alkali metal salt and an ethanolamine salt, the molar ratio of the alkali metal salt to the ethanolamine salt is 10:90 to 75:25, the degree of neutralization is 1.5 to 2.0 eq, and an alkyl-modified silicone represented by formula (I) below is blended as an ingredient, and a solid washing agent formed from the composition.

## Claims

### Claim 1

A composition for a solid washing agent that is highly foaming yet hard even in a high-temperature, high humidity environment, comprising:
an N-long chain acyl acidic amino acid salt as a component of an ingredient,
a salt for the N-long chain acyl acidic amino acid salt comprising an alkali metal salt and an ethanolamine salt,
a molar ratio of the alkali metal salt to the ethanolamine salt being 10:90 to 75:25,
a degree of neutralization being 1.5 to 2.0 eq, and
an alkyl-modified silicone represented by formula (I) below as an ingredient:
wherein R represents an alkyl or alkenyl group having 8 to 18, and a and b each represent an integer of 0 to 3;
wherein the composition has a maximum extent of melting caused by rubbing of 70 g/100 cm2 as determined according to JIS K-3304 and has foaming properties of at least 1950 ml as determined by stirring 400 ml of 1 wt % in aqueous 70 ppm calcium chloride at 40 degrees Centigrade for 60 seconds.

### Claim 2 (depends on 1)

The composition for a solid washing agent according to claim 1, wherein the alkyl-modified silicone represented by formula (I) above is caprylyl methicone.

### Claim 3 (depends on 1)

The composition for a solid washing agent according to claim 1, wherein the N-long chain acyl acidic amino acid salt has an acyl group having 10 to 20 carbon atoms.

### Claim 4 (depends on 1)

A solid washing agent formed from the composition for a solid washing agent of claim 1.

### Claim 5

A composition for a solid washing agent, comprising:
an N-long chain acyl acidic amino acid salt as a component of an ingredient,
a salt for the N-long chain acyl acidic amino acid salt comprising an alkali metal salt and an ethanolamine salt,
a molar ratio of the alkali metal salt to the ethanolamine salt being 10:90 to 75:25,
a degree of neutralization being 1.5 to 2.0 eq, and
caprylyl methicone as an ingredient,
wherein of the N-long chain acyl acidic amino acid salt, an N-long chain acyl acidic amino acid salt having an acyl group having 14 or fewer carbon atoms accounts for 45 to 100 wt % and an N-long chain acyl acidic amino acid salt having an acyl group having 18 or more carbon atoms accounts for 0 to 36 wt %.

### Claim 6 (depends on 5)

The composition for a solid washing agent according to claim 5, wherein the N-long chain acyl acidic amino acid salt has an acyl group having 10 to 20 carbon atoms.

### Claim 7 (depends on 5)

A solid washing agent formed from the composition for a solid washing agent of claim 5.

### Claim 8 (depends on 5)

The composition for a solid washing agent according to claim 5, wherein the composition has a melting temperature of at least 60 degrees centigrade.

### Claim 9 (depends on 5)

The composition for a solid washing agent according to claim 5, characterized by having a maximum extent of melting caused by rubbing of 70 g/100 cm2.