JPS5936603B2 - skin cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to skin cosmetics, and particularly addresses the drawbacks of conventional makeup cosmetics, such as "makeup fading", that is, the effects of human body secretions such as sweat, tears, and sebum on cosmetics. , makeup fading mainly due to chemical effects such as rain, snow, pool water, seawater, etc., moisture effects caused by the weather and location conditions when using cosmetics, and the effects of various ingredients in other cosmetics used together. ,
The purpose of the present invention is to solve these various problems of makeup smearing and to obtain a makeup cosmetic that does not stain clothes and has good makeup retention.

Conventional makeup cosmetics come in a wide variety of product forms, including water-based, oil-based, emulsified, and powder-based products.For example, water-based products contain large amounts of hydrophilic substances in their formulations, so they can be easily absorbed by sweat, Makeup easily fades due to tears, rain, etc., ie, water resistance is poor.

Since oil-based products contain a large amount of lipophilic substances in their formulations, they are likely to cause makeup to fade due to sebum or the oil content of the cosmetics used in combination.

That is, oil resistance is poor. Emulsion type products do not have sufficient water resistance or oil resistance.

In addition, powder-based products have poor water resistance and oil resistance, and furthermore, makeup tends to come off due to movement of the skin at the site of use or friction from hands or clothing, that is, they have poor adhesion to the skin, and they also tend to stain clothing.

As described above, conventional makeup cosmetics have poor water resistance, oil resistance, and adhesion to the area of use, and thus tend to cause makeup to come off and have poor makeup retention.

In order to solve the drawbacks of conventional makeup cosmetics, the present invention has achieved the objective by blending a high softening point aromatic hydrocarbon resin as an active ingredient into a cosmetic base material after intensive research. To obtain a makeup cosmetic that has excellent water resistance, oil resistance, and adhesiveness, does not cause makeup smearing, and has good makeup retention.

The high softening point aromatic hydrocarbon resin used in the present invention is [a cracked oil fraction obtained by thermal decomposition of petroleum with a boiling point of 120 to 220°C, a degree of polymerization of 1000 to 19000°C, preferably a boiling point of 140 to 220°C] , degree of polymerization 1600-1900
The boiling point and degree of polymerization are within the range of , and the styrene content is 7.
wt% or less, the styrene content is 15% or less, the total content of indene and its alkyl derivatives is 5wt% or more, and the indene content is adjusted to 11% or more. 0.05-5wt of a mixture of seeds or more based on raw oil
%, and using 0.01 to 5 wt% of trifluoride borosilicate thread catalyst to the raw material oil at a temperature of -30 to +40°C for a time of IQmm to 15 hr. After polymerization, the catalyst is decomposed and removed, and unreacted oil and low polymers are separated by evaporation or distillation. Light-colored aromatic hydrocarbon resin; Here, the styrene content or the total content of indene and its alkyl derivatives is the wt of styrene in the cracked oil fraction that is the raw material.
% or w of the sum of indene and its alkyl derivatives
t%, and the styrene content or indene content is a value expressed by the following formula (1) or (2).

However, A is the amount of polymerizable components in the raw cracked oil fraction (wt%
), B is the content of styrene in the raw cracked oil fraction, and C is the total content of indene and its alkyl derivatives in the raw cracked oil fraction.

(hereinafter abbreviated as high soft point aromatic hydrocarbon resin).

The method for producing this high softening point aromatic hydrocarbon resin is described in detail in Japanese Patent Publication No. 48-32432.

That is, to show one of the production examples, the cracked oil fraction (A) in the range of 120 to 220°C produced by steam cracking of naphtha has 4 polymerizable components according to the results of gas chromad analysis.
At 8.5 wt%, the styrene content was 15.0 wt%, and the indene content was 3.9 wt%.

Therefore, the styrene content was 30.9% and the indene content was 8.0%.

As a result of rectifying (A) in a 30-stage rectification column under the conditions of charging temperature 150 °C, tower top temperature 145 °C, tower low temperature 175 °C, and reflux ratio 2.0, 87 wt% of (A) was Pulled from low.

This oil (B) had a polymerizable component of 49.3 wt%, a styrene content of 6.2 wt%, a styrene content of 12.6%, an indene content of 4.5 wt%, and an indene content of 9.1%.

In addition, as a result of rectifying (A) in the above rectifying column under the conditions of charging temperature 160°C, tower top temperature 153°C, tower low temperature 190°C, and reflux ratio 3.5, 52 wt% of the cracked oil fraction was Pulled out from the base.

This oil (Q) had a polymerizable component of 49.5 wt%, a styrene content of 0.1 wt%, a styrene content of 0.2%, an indene content of 7.5 wt%, and an indene content of 15.2%.

The cracked oils of these (A), (B) and (Q) and (B
) to which a concentrated indene fraction with an indene content of 55 wt% was added as a raw material and polymerized under the conditions shown in the table. After removing the catalyst with an aqueous solution of caustic soda, washing with water and removing unreacted oil and low polymers by distillation. The results are shown in the table.

(Note 1) 0.15wt% phenol based on raw oil
In addition, 0.4 wt% of trifluoride ethyl ether complex was added as a catalyst and polymerized at 10°C for 5 hours (Note 2) Ring and ball method (JIS K2531-1960)
by.

(Note 3) According to ASTM D-1158-57T.

(Note 4) Solubility in the petroleum-based hydrocarbon solvent (Note 5) Resin 21 dissolved in 25 cc of benzene was used as A.
Compare the color with a Gardner standard color tube using STMD-1544-58T.

In the present invention, the object can be achieved by blending 1 to 15% of this high softening point aromatic hydrocarbon resin in makeup cosmetics.

Conventional cosmetics have used natural oil-soluble resins such as shellac and rosin, as well as oil-soluble cellulose derivatives such as ethyl cellulose, nitrocellulose, and cellulose acetate, but they have poor compatibility with each ingredient in the formulation. It was difficult to say that the makeup lasted well.

Comparative data regarding oil resistance, water resistance, and adhesion between the high softening point aromatic hydrocarbon resin used in the present invention and conventionally used resins is shown.

The standard formulation used for comparison is Iron Oxide Black 2
Data were obtained using A to R (resin symbols) as the various resins.

(In the case of Figure 2) Also, standard oil resistance, water resistance and adhesion test methods are as follows.

(1) Oil resistance: A board coated with cosmetics and dried is brought into contact with a test paper (a certain amount of test liquid is dropped) a certain number of times (30 times).
Compare the degree of transfer onto the test paper.

(2) Water resistance: A cosmetic coating film is placed in a test solution, mechanical friction is applied, shaking is performed for a certain period of time (2 hours), and the degree of peeling of the coating film is compared.

(3) Adhesion: A cosmetic coating film is made on a nylon plate, mechanical friction is applied to it, shaken for a certain period of time (2 hours), and the degree of peeling of the coating film is compared.

FIG. 1 shows the state diagram of the case where the oil resistance, water resistance and adhesion are good, and the case where it is bad.

Next, we will compare the oil resistance, water resistance, and adhesiveness of the high softening point aromatic hydrocarbon resin used in the present invention with various resins.
It is shown in the table and Figure 2.

In Table 1, when qualitatively expressing the oil resistance shown in Figure 2, the oil resistance is classified as follows.

Next, FIG. 3 shows a comparison of oil resistance, water resistance, and adhesion between the cream foundation of the example of the present invention and various foundations.

As described above, when comparing various resins with the high softening point aromatic hydrocarbon resin used in the present invention in terms of oil resistance, water resistance, and adhesiveness, we found that artificial sebum was used for oil resistance, and artificial sweat was used for water resistance. As shown in Table 1 and Figure 2, the aromatic hydrocarbon resin with a high softening point had extremely good oil resistance compared to various resins.

Also, as seen in Figure 3, a comparison was made between Example 1 and various foundations (oil-based type, emulsified type, and water-based type). For oil resistance, artificial sebum, sunken oil, and squalane were used, and for water resistance, tap water, Artificial sweat and artificial salt water (3.5%
As a result, good results were obtained in all respects including adhesiveness.

In addition, we conducted safety tests on high softening point aromatic hydrocarbon resins including a skin secondary irritation test, an eyelid irritation test, an acute oral toxicity test, and a human body occlusion patch test, and no problems were found. .

Example 1 Cream foundation Liquid paraffin (light) 50% hydrocarbon wax 5 Lanolin derivative 5 High softening point aromatic hydrocarbon resin 5 (boiling point 140°C, degree of polymerization 16
00) Rubitan monopalmitate Iron trioxide (brown) 35 Titanium dioxide 10
16.5 Organic montmorillonite 2 Preservative
Appropriate amount of fragrance
Appropriate amount Example 2 Cream eyebrow liquid paraffin (light) 40% hydrocarbon wax 10 High softening point aromatic hydrocarbon resin 15 (boiling point 120°C, degree of polymerization 1000) Monoglyceride 3 Aluminum stearate 1 Ion exchange water
15 black iron oxide
3 kaolin
13 Preservatives
Appropriate amount Fragrance Appropriate amount Production method of Examples 1 and 2 Add resin, wax, surfactant thickener, etc. to liquid paraffin, heat dissolve and disperse, then add pigment and water (in the case of Example 2) It can be obtained by stirring, dispersing, and cooling.

, the present invention applies to other foundations, eyebrows,
It is widely applied to eye makeup cosmetics such as eye shadow, eyeliner, and mascara, and skin and hair cosmetics such as body paint, nail enamel, lipstick, hair coloring, and leg makeup cosmetics. be.

[Brief explanation of the drawing]

FIG. 1 shows a state diagram in which (1) oil resistance, (2) water resistance, and (3) adhesion are good and bad. FIG. 2 is a comparison diagram of the oil resistance, water resistance, and adhesiveness of the high softening point aromatic hydrocarbon resin used in the present invention and various resins (A-R). FIG. 3 is a comparison diagram of oil resistance, water resistance, and adhesion between the cream foundation of Example 1 of the present invention and various foundations (oil-based (1) and (2), emulsion-based and water-based).

Claims (1)

[Scope of Claims] 1. High softening point aromatic hydrocarbon resin (boiling point 120-220°C of cracked oil fraction obtained by thermal decomposition of petroleum);
It has a degree of polymerization of 1000 to 1900 and a styrene content of 7.
wt% or less, the styrene content is 15% or less, the total content of indene and alkyl derivatives is 5wt% or more, and the indene content is adjusted to 11% or more as a raw material, and one or two types of phenol or alkylphenols. The above mixture was added in the range of 0.05 to 5 wt% to the raw material oil, and the mixture was heated in the range of -30 to +40°C using 0.01 to 5 wt% of the three-piece silicate fiber catalyst to the raw material oil. After the polymerization is carried out at a temperature within It is a light-colored aromatic hydrocarbon resin with good solubility in solvents and a low bromine number of 30 or less. ) as an active ingredient in a cosmetic base.