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Cleansing composition

A technology for compositions and cleaning agents, applied in the directions of anionic surface active compounds, preparations for skin care, detergents in bar/sheet form, etc. Good rinsing, reducing red marks and pimples

Active Publication Date: 2014-05-07
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these cleanser compositions cannot satisfy the speed or intensity of the appearance of a finish feeling during rinsing, and the sebum cleansing properties are not sufficient.

Method used

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Examples

Experimental program
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Effect test

manufacture example 1

[0101] 1144g (6.14mol) of lauryl alcohol [trade name: KALCOL2098, manufactured by Kao] and 60.2g (0.281mol) of myristyl alcohol [trade name: KALCOL4098, manufactured by Kao] were added to a stainless steel autoclave equipped with stirring and temperature adjustment functions. , 2.68g (0.0478mol) of potassium hydroxide, dehydration under reduced pressure. Next, 996 g (22.6 mol) of ethylene oxide (EO) was introduced at 155° C., and the reaction was performed at a reaction temperature of 155° C. and a reaction pressure of 0.4 MPa for 2 hours. After the reaction, stir for 30 minutes at 80°C and 6kPa under reduced pressure, remove unreacted ethylene oxide, introduce nitrogen to normal pressure, and add 4.82g (0.0482mol) of 90% lactic acid into the autoclave , and stirred at 80° C. for 30 minutes to obtain an alkyl ethoxylate having an added mole number of EO of 3.55 mol (hereinafter referred to as “produced AE”).

[0102] 90g (0.2mol) of the above product, 16.7g of 48% sodium hydr...

manufacture example 2

[0109] Following Production Example 1, EO was mixed with decyl alcohol [trade name: KALCOL1098, manufactured by Kao], lauryl alcohol [trade name: KALCOL2098, manufactured by Kao], myristyl alcohol [trade name] at a mass ratio of 10 / 70 / 15 / 5. : KALCOL4098, manufactured by Kao] and cetyl alcohol [trade name: KALCOL6098, manufactured by Kao] were reacted to obtain an alkyl ethoxylate having an added mole number of EO of 3.55 mol. This was subjected to an oxidation reaction in the same manner as in Example 1, and an alkyl ether carboxylic acid was obtained by treating the obtained alkyl ether carboxylate with hydrochloric acid. Make it EC2.

[0110] The analysis result of gas chromatography obtained by analytical method 1, EC2 is in the general formula (1), M=H, R 1 It is decyl / lauryl / myristyl / palmityl=10 / 70 / 15 / 5, the average number of carbon atoms is 12.3, the average value of n is 3.1, n=0 contains 16% by mass, and n=1 The total amount of the components and n=2 components was 3...

manufacture example 3

[0114] Following Production Example 1, decyl alcohol was used as a raw material to react with EO to obtain an alkyl ethoxylate with 3.55 moles of EO added. This was subjected to an oxidation reaction in the same manner as in Example 1, and the obtained alkyl ether carboxylate was treated with hydrochloric acid to obtain an alkyl ether carboxylic acid.

[0115] The analysis result of gas chromatography obtained by analytical method 1 is that, in the general formula (1), M=H, R 1 It is decyl, the average value of n is 3.1, the component with n=0 contains 16% by mass, the total amount of components with n=1 and n=2 is 33% by mass, and the total amount of components with n≧6 is 18% quality%.

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PUM

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Abstract

A cleansing composition comprising an alkyl ether carboxylic acid or a salt thereof represented by the following formula (1): wherein, R 1 represents an alkyl group having 4 to 22 carbon atoms, n represents a number of from 0 to 20, and M represents a hydrogen atom, alkali metal, alkaline earth metal, ammonium, or organic ammonium, wherein, R 1 contains two or more alkyl groups and has an average carbon number of from 10.8 to 12.5, and wherein, the alkyl ether carboxylic acid or a salt thereof contains a component in which n = 0 in an amount of from 8 to 27 % by mass, a component in which n = 1 and a component in which n = 2 in a total amount of from 28 to 38% by mass, and components in which n ‰¥ 6 in a total amount of 10% by mass or more. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 -O-(CH 2 CH 2 O) n -CH 2 -COOM€ƒ€ƒ€ƒ€ƒ€ƒ(1)

Description

technical field [0001] The present invention relates to cleaning compositions. Background technique [0002] For a long time, anionic surfactants such as alkyl sulfates, polyoxyethylene alkyl sulfates, and higher fatty acid salts have been used in skin cleansers. These skin cleansers have a slippery feeling when rinsing and a tight feeling after use. problems (for example, Patent Document 1, Patent Document 2). In addition, if you use these skin cleansers by hand, small bumps will appear on the back and other places that are difficult to reach with your hands. One of the causes is considered to be that sebum is not washed off and accumulates on the skin. Therefore, a cleanser with low skin irritation and high sebum-cleaning ability (hereinafter referred to as sebum cleansing property) has been sought. [0003] Alkyl ether carboxylic acid surfactants are known as less irritating surfactants to the skin. However, since they lack foaming properties, combined use of these sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/39A61K8/36A61Q19/10C11D1/06
CPCA61K8/368C11D1/06A61Q19/10C11D17/006A61K8/39C11D1/37
Inventor 武内宏树宫木正广山本奈绪子东西田奈都子J·贝内德
Owner KAO CORP
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