JP2001131014A - Rearlescent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pearlescent agent capable of imparting excellent pearlescent gloss and provide a pearlescent composition having excellent pearlescent gloss. SOLUTION: The pearlescent agent is composed of a compound expressed by general formula (I) (R1 is a 1-22C alkyl, an alkenyl or an aromatic hydrocarbon group; R2, R3 and R4 are H atom, a 1-22C alkyl, an alkenyl, a hydroxyalkyl, an aminoalkyl or an aromatic hydrocarbon group the same as or different from each other; and R2 and R3 may together form a ring). The pearlescent composition contains 0.5-50 wt.% pearlescent agent, 1-60 wt.% surfactant and 30-98.5 wt.% water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a pearlizing agent and a pearlescent composition containing the same, which has an excellent pearl-like appearance.

[0002]

2. Description of the Related Art Liquid products, such as shampoos, used for cleaning the body and hair are required to give a good impression to consumers. Therefore, in order to give a sense of quality, ethylene glycol distearate (European Patent No. 1811773) and a linear dicarboxylic acid diester (JP-A-57-67510)
Thus, pearl-like luster is imparted to the detergent composition.

[0003] However, the pearl luster obtained with these conventional cleaning agents is not uniform, or even if uniform, lacks vividness, and is not yet satisfactory.

[0004] It is an object of the present invention to provide a pearlizing agent capable of imparting excellent pearl-like luster and a pearlescent composition having excellent pearly luster.

[0005]

The present invention provides a compound represented by the general formula (I):
A pearling agent comprising a compound represented by the following formula (hereinafter referred to as compound (I)); (a) a pearlizing agent comprising compound (I) 0.5 to 50% by weight; as well as
(c) A pearlescent composition containing 30 to 98.5% by weight of water.

[0006]

Embedded image

[0007] (wherein, R ¹ represents an alkyl group, an alkenyl group or an aromatic hydrocarbon group having 1 to 22 carbon atoms, R ^2,
R ³ and R ⁴ are the same or different and each represent a hydrogen atom,
22 represents an alkyl group, an alkenyl group, a hydroxyalkyl group, an aminoalkyl group or an aromatic hydrocarbon group;
² and R ³ may together form a ring. )

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION As the compound (I), for example, N, N'-dialkylurea, N, N-dialkylurea, N-alkyl-N'-phenylurea having an alkyl group having 1 to 22 carbon atoms, N, N-dialkyl-N'-phenylurea, N-hydroxyalkyl-N'-alkylurea and the like, and N, N'-dialkylurea having 8 to 22 carbon atoms in the alkyl group, N-alkyl-N '-Phenylurea is preferred, and N-alkyl-N'-phenylurea is particularly preferred. Particularly preferred specific examples include N-decyl-N'-phenylurea, N-octyl-N'-phenylurea and the like.

The compound (I) can be easily obtained by, for example, a method of reacting a known isocyanate derivative with an amine or a method described in JP-A-54-95988 and JP-A-5-194360.

The composition of the present invention containing the compound (I) has an excellent pearl luster and the compound (I) in the composition
Is appropriately selected within a range where the desired effect can be obtained, but is preferably 0.5% by weight or more from the viewpoint of the brilliancy of the obtained pearl luster, and from the viewpoint of obtaining a stable composition having fluidity. It is preferably at most 50% by weight, particularly preferably from 2 to 30% by weight.

The surfactant of the component (b) used in the present invention includes an anionic surfactant, a cationic surfactant, an amphoteric surfactant and a nonionic surfactant. Two or more kinds can be used as a mixture.

As anionic surfactants, for example, sulfates such as paraffin sulfonate, α-olefin sulfonate, polyoxyethylene alkyl sulfate, alkyl carboxylate, alkyl benzene sulfonate, mono- or dialkyl phosphate, alkanoyl isethionate, sulfonate, carboxylate and the like. Phosphates and their salts are included. Here, as a salt, an alkali metal salt such as sodium or potassium,
Organic ammonium salts such as ammonium salts, monoethanol ammonium salts, diethanol ammonium salts, and triethanol ammonium salts are preferably used.

Examples of the cationic surfactant include a mono- or di-long-chain alkyl quaternary ammonium salt and a mono- or di-long-chain alkyl tertiary amine.

Examples of the amphoteric surfactant include betaine-based activators such as imidazolium betaine, carbobetaine and sulfobetaine, and tertiary amine oxides having an alkyl or alkenyl group having 10 to 18 carbon atoms.

As a nonionic surfactant, polyoxyethylene (average addition mole number: 3 to 30) alkyl (C ₁₀ to
C ₁₈₎ ethers, fatty acid (C ₁₀ ~C ₁₈₎ diethanolamide, fatty acid (C ₁₀ ~C ₁₈₎ monoethanolamide, alkyl (C ₁₀ ~C ₁₈₎ polyglucoside, and the like.

The compounding amount of the component (b) in the composition of the present invention is as follows:
The amount is preferably 1% by weight or more from the viewpoint of the stability of the component (a), and is preferably 60% by weight or less, particularly preferably 1 to 40% by weight, from the viewpoint of solubilizing the component (a).

The water of the component (c) used in the present invention is mixed in the composition of the present invention in an amount of 30 to 98.5% by weight, preferably 30 to 95% by weight, particularly preferably 50 to 95% by weight.

In addition to the above components, the composition of the present invention may further comprise a solubilizer, a conditioning agent, a fragrance, a coloring matter, a thickener, a preservative, a bactericidal agent, if necessary, as long as the desired effects are not impaired. Various components such as an agent, an anti-dandruff agent and a medicinal component can be blended. As a solubilizing agent, for example, ethanol, isopropanol, glycerin, ethylene glycol, propylene glycol, sorbitol, p-toluenesulfonic acid, urea, etc., as a conditioning agent, a siloxane compound, a cationized cellulose derivative, a cationized guar gum derivative, etc. Polymer compounds.

The pearly glossy composition of the present invention can be used for hair shampoos, hair rinses, hair treatments and other hair-washing products, body shampoos, facial cleansers, basic cosmetics,
It can be used as a makeup cosmetic, a hairdressing agent, and the like.

[0020]

EXAMPLES The percentages and parts in the examples are by weight unless otherwise specified.

Synthesis Example 1 N-decyl-N'-phenylurea At room temperature, 83.9 g (0.534 mol) of decylamine was added to hexane 40
After dissolving in 0 mL, a phenyl isocyanate-hexane solution [prepared by dissolving 59.5 g (0.500 mol) of phenyl isocyanate in 100 mL of hexane] was added dropwise over about 1 hour.
After the addition, the mixture was further stirred at room temperature for about 1 hour. The obtained precipitate was filtered and washed with hexane to obtain 126.9 g of the title compound (yield: 92%).

Synthesis Example 2: N, N'-distearylurea At room temperature, 23.9 g (0.0888 mol) of stearylamine was dissolved in 250 mL of chloroform, and then an octadecyl isocyanate-chloroform solution [25.0 g (0.0847 mol) of octadecyl isocyanate was added. Prepared by dissolving in 100 mL of chloroform) over about 1 hour.
Stirred for hours. The obtained precipitate was filtered and washed with chloroform and acetone to obtain 45.0 g of the title compound (yield:
94%).

Synthesis Example 3 N-decyl-N'-stearyl urea At room temperature, 14.5 g (0.0924 mol) of decylamine was dissolved in 200 mL of chloroform, and then an octadecyl isocyanate-chloroform solution [octadecyl isocyanate 25.0
g (0.0847 mol) in 100 mL of chloroform.
Was added dropwise over about 1 hour, and the mixture was further stirred at room temperature for about 1 hour. The resulting precipitate is filtered, washed with hexane,
35.1 g of the title compound was obtained (91% yield).

Examples 1 to 11 and Comparative Examples 1 and 2 The compositions having the compositions shown in Tables 1 and 2 were mixed by heating at 95 ° C.
After the component (a) was dissolved, the mixture was gradually cooled with stirring over about 2 hours to adjust the final liquid temperature to 10 to 40 ° C. The appearance and liquid feeling of the obtained composition were evaluated by the following methods. The results are shown in Tables 1 and 2.

(1) Evaluation of Appearance A sample was placed in a 50 mL transparent glass container, and the appearance was visually evaluated by one skilled tester according to the following criteria. ：: Uniform pearl-like luster was observed, and it was vivid. ：: Uniform pearly luster is observed. Δ: Pearl-like luster was observed, but uneven. ×: No gloss was observed.

(2) Evaluation of liquid feeling The sample was placed on the hand, the sample was touched with one hand, and one skilled tester evaluated the sensory evaluation according to the following criteria. ：: good feel △: normal ×: unpleasant feel

[0027]

[Table 1]

As is clear from Table 1, Comparative Examples 1 and 2
In comparison, Examples 1 to 4 all had a brilliant pearl-like appearance and had a good liquid feel.

[0029]

[Table 2]

As is clear from Table 2, all of the liquid compositions of the present invention show excellent performance.

Example 12 <Shampoo composition> POE (2) sodium lauryl ether sulfate 16% (effective concentration) Coconut fatty acid amidopropyl betaine 3% Cationized guar gum 0.2% Stearyl trimethylammonium chloride 0.1% Deionized water balance pH 6. 0 15 parts of the liquid composition of Example 3 was added to 85 parts of the shampoo composition. The appearance of the obtained shampoo was very good, and the liquid feeling and dispersion stability were good.

Example 13 <Body shampoo composition> Potassium laurate 14% (effective concentration) Liquid composition of Example 3 20% Palm fatty acid diethanolamide 4% Deionized water Balance pH 9.2 The compounding operation was performed at 30 ° C. The appearance of the obtained body shampoo is very good,
The dispersion stability was also good.

[0033]

The pearlizing agent of the present invention can impart excellent pearl-like luster, and the composition of the present invention
It has excellent pearl luster and good feel.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yohei Kaneko 1334 Minato, Wakayama-shi, Wakayama Prefecture F-term in the Kao Research Laboratory 4C083 AB051 AC242 AC642 AC681 AC682 AC692 AC712 AC782 AD352 BB01 CC01 CC23 CC38 DD02 EE06 FF01

Claims (2)

[Claims] 1. A pearlizing agent comprising a compound represented by the general formula (I). Embedded image (Wherein, R ¹ represents an alkyl group, an alkenyl group or an aromatic hydrocarbon group having 1 to 22 carbon atoms, and R ² , R ³ and R ⁴ are the same or different and each represent a hydrogen atom, a C ¹ to C 22 It represents an alkyl group, an alkenyl group, a hydroxyalkyl group, an aminoalkyl group or an aromatic hydrocarbon group, and R ² and R ³ may form a ring together.) 2. (a) 0.5 to 50% by weight of the pearlizing agent according to claim 1, (b) 1 to 60% by weight of a surfactant, and (c) 30 to 98.5 of water.
A pearly glossy composition containing wt%.