JPH01168607A - Polishing composition - Google Patents

Abstract

PURPOSE:To obtain the title composition useful as a lipstick, having excellent gloss, light spread and refreshing touch, comprising an organic silicone resin having a three-dimensional network structure, silicone oil component having low degree of polymerization and hydrocarbon wax as essential components. CONSTITUTION:10-90wt.% based on total amount of a polishing composition of an organic silicone resin having preferably 1,500-200,000 molecular weight and an average unit shown by formula I (R is 1-6C alkyl or phenyl, n is 1.0-1.8) is blended with a silicone oil component shown by formula II (n is 1-20) having low degree of polymerization, which is preferably dimethylpolysiloxane, methylphenylpolysiloxane, etc., has preferably 3,000-20,000cs mixed viscosity of the organic silicone resin and the silicone oil component having the low degree of polymerization and good compatibility with hydrocarbon wax and 0.5-25wt.% based on total amount of the polishing composition of the hydrocar bon wax such as microcrystalline wax, polyethylene wax or ceresine wax as essential components to give the polishing composition. The polishing composi tion may contain a humectant, pigment, etc.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a light and excellent gloss product made by blending an organic silicone resin with a three-dimensional network structure, a low polymerization degree silicone oil, and a hydrocarbon wax. The present invention relates to a polishing composition that is easy to use and has less stickiness.

[Prior art] A glossy lipstick composition (lip gloss) can be used alone or applied over lipstick.
It gives gloss to the lips and is commercially available in various forms such as sticks and pots.

Examples of oils that impart a glossy effect include high viscosity oils such as castor oil, olive oil, lanolins, polybutenes, and sugar esters such as sucrose acetate isobutyrate, which are commonly used in lipsticks. However, due to the high viscosity of both oils, contrary to their glossy effect, they were difficult to use and felt sticky after application.

Lip glosses that are lightweight and have a firm feel have been long awaited by lipstick users.

One skilled in the art can readily envision the formulation of high viscosity silicone oils (eg, dimethylpolysiloxane oils of 5000 c, s or higher) as a means of achieving these contradictory goals. However, although silicone-based high viscosity oils are easy to use, have a firm feel, and have a glossy effect, they are extremely incompatible with hydrocarbon waxes, which are the main waxes used in lipsticks, and are also difficult to use as colorants. It is difficult to commercialize lip gloss because of its poor wettability, and in particular, it has been extremely difficult to apply it to stick and pot shapes, which account for the majority of the lip gloss market, because it does not retain its shape.

[Problems to be Solved by the Invention] The present invention is directed to carbonizing an organic silicon resin whose polymerization direction is not linear (or three-dimensional) and is therefore highly compatible with hydrocarbon waxes. By dissolving in silicone oil with a low degree of polymerization that has good compatibility with hydrogen wax and creating a solution with an appropriate viscosity (preferably 500 to 20,000 c, s), and blending it as the main base,
The aim is to obtain a stick-shaped or pot-shaped lip gloss that is light in use, has a firm feel, and has a glossy effect. That is, the present invention starts from the development of a high viscosity silicone oil that dissolves hydrocarbon wax.

[Means for Solving the Problems] That is, the present invention comprises an organic silicone resin consisting of units of average formula (A), a low degree of polymerization silicone oil represented by general formula (B), and a hydrocarbon wax. This is a polishing composition characterized by containing the present invention as an essential component.

(A) Rn S i O(4-n)/2 (R represents an alkyl group having 1 to 6 carbon atoms or a phenyl group, and n is 1.0
-1.8) (n is an integer of 1 to 20, R represents an alkyl group having 1 to 6 carbon atoms and a phenyl group) Hereinafter, the structure of the present invention will be explained in detail.

The organosilicon resin used in the present invention has R35iO units, R
It consists of an appropriate combination of 25iO units, R31O units and SiO□ units, and the ratio is determined by the average formula Rn5iO (n is 1
．． Indicates a value from 0 to 1.8. ) is selected to satisfy the following. The molecular weight is preferably from 1,500 to 200,000.

The above organosilicon resin is soluble in benzene and can be produced by various methods. -For example, general formula R35iX
, R 25iX 2 , R 51 and a suitable solvent such as toluene, benzene, xylene, etc., which is then added to a sufficient amount of water to obtain the desired hydrolysis and cocondensation in a suitable acidic solvent. removing the aqueous phase from the two-phase system thus obtained;
The remaining resinous material is neutralized with a sufficient amount of sodium bicarbonate or other alkaline material, and the solvent is distilled off to yield the desired organosilicon resin.

The blending amount of the organosilicon resin in the present invention varies depending on the composition of the resin, but is 10 to 10% of the total amount of the polishing composition.
90'% by weight, preferably 30-60% by weight.

The low degree of polymerization silicone oil in the present invention has a value of n of 20 or less, preferably 3 to 15 in the general formula of dimethylpolysiloxane and methylphenylpolysiloxane. When n is larger than 20, compatibility with hydrocarbon waxes is poor, resulting in phase separation or failure to maintain shape retention.

The ratio of organic silicone resin and silicone oil with a low degree of polymerization in the present invention varies depending on the composition of the resin, molecular weight, degree of polymerization of the oil, etc., and the mixed viscosity is 3000 to 200000c.
, s, as long as it is properly adjusted.

The hydrocarbon wax in the present invention may be any wax that is generally used in cosmetics, and examples thereof include microcrystalline wax, polyethylene wax, ceresin wax, and the like. The amount of hydrocarbon wax is
Although it varies depending on the solidifying power for oil, it is 0.5 to 25% by weight, preferably 3 to 10% by weight based on the total amount of the polishing composition.
Weight%. If it is less than 0.5% by weight, shape retention cannot be maintained, and if it exceeds 25% by weight, gloss is lost.

The polishing composition of the present invention may contain wax, oil, water, humectants, surfactants, pigments, resins, clay minerals, antioxidants, preservatives, and ultraviolet rays, as necessary, to the extent that the effects of the invention are not impaired. This can be done by adding inhibitors, fragrances, etc.

[Effects of the Invention] The polishing composition of the present invention contains an organic silicone resin, a low degree of polymerization silicone oil, and a hydrocarbon wax, and is in the form of a stick that spreads easily and has an excellent feel such as smoothness. Or it is a pot-shaped polishing composition.

[Example] Next, the present invention will be explained in more detail with reference to Examples. The invention is not limited thereby. The blending amount is in weight%. The effectiveness test method and evaluation criteria will be explained in Examples.

11 ◆ Add wax at a concentration of 10% to the oil components alone or in combination, and heat to 90°C to dissolve. In this case, those that dissolve transparently with wax are shown as 0, and those that are opaque or exhibit two-layer separation are shown as x.

About stickiness, stiffness, and lightness of usability 18-3
Sensory evaluation was conducted by 50 females aged up to 5 years. Each item is evaluated on a 5-point scale, with the average of 50 people being 4.2 or higher as 0, 4.1 to 3.5 as Δ, 3.4 to 2.6 as Δ, and 2.5 or less as ×. And so.

A good sample of "Guyu L" was coated on parchment paper and measured using a gloss meter manufactured by Nippon Denshoku Kogyo KK, and the degree of gloss compared to a standard glossy plate is expressed in %.

Example 1, Comparative Examples 1 and 2 Lip glosses were prepared based on the formulations shown in Table 1, and evaluated for compatibility, usability, and gloss effect.

(The following is a blank space) As can be seen from Table 1, all the samples have sufficient glossiness, but the lip gloss of Comparative Example 1 containing lanolin and polybutene is sticky and spreads easily. Also, dimethylpolysiloxane (n = 500)
Lip glosses containing this product have poor compatibility with hydrocarbon waxes, and the product loses its shape. The lip gloss according to the present invention has good compatibility with hydrocarbon wax and oil, and fully embodies the smoothness and lightness of use that are characteristic of silicone, and has the same gloss and gloss of conventional lip glosses. However, it was something that wiped away the concept of stickiness.

Example 2 Paste lip gloss microcrystalline wax 12.0 Vaseline 20.0 Silicone KF
56 *-120,0 Organic silicone resin *-24
7.0 Mica titanium 0.9 Fragrance
0.1 total
ioo,.

*-1 Dimethylpolysiloxane manufactured by Shin-Etsu Chemical KK *-2
has a molecular weight of about 3000, and (C)13) 3si
An organic silicone resin represented by the average formula (CH3) 1.33siO+, 34 consisting of 01/2 units: 5i02 units = 0.8:1.

(Manufacturing method) An organic silicone resin is dissolved in silicone KF56 to obtain a viscous and transparent solution. Then, wax is added and melted at 90°C. Further, titanium mica and fragrance are added and dispersed and mixed at 85°C. After degassing, fill into a tube-shaped container. As shown in the scores in Table 2, Example 2
It is sticky, has a firm feel, and is easy to use.
The gloss effect was also sufficient.

(Left below) (Manufacturing method) According to Example 2. After manufacturing, it is filled into designated stick containers.

As shown by the scores in Table 2, Example 3 had no stickiness, had a smooth feel, was easy to use, and had a sufficient gloss effect. However, Comparative Example 3 has a rough feel, but silicone KF whose main oil is wax.
Since it does not dissolve in 98H, it cannot have a uniform composition. Although Comparative Example 4 had a gloss effect, it was difficult to use and felt sticky.

Example 4 Emulsified lip gloss polyethylene wax 6.0 Ceresin wax 5.0 Dimethylpolysiloxane (n=1-2) 10.0 Organic silicone resin *-170.0 Purified water 5.0 Laponite XLG *-21.0 Silicone KF945 *-30.5dl-pyrrolidonecarboxylic acid 0.3glycerin
0.7 iron oxide red
0.2 titanium dioxide
0.5 Blue No. 1 0.
1 Ethylparaben 0,3 Dibutylhydroxytoluene 0.1 Fragrance 0.3
Total 100
．． 0*-1 approximately molecular weight 5000, (CH3)3siOt/
2 units: (CsHs) 2SiO units” (CsHs
)Si02/3 unit: 5i02 unit = 0.9:
Average formula % formula consisting of 0.1 : 0.2 : 1.0 Machine silicone resin *-2 Synthetic hectorite manufactured by Laborte, UK *-3 Polyether-modified dimethylpolysiloxane manufactured by Shin-Etsu Chemical (manufacturing method) Organic silicone resin Dimethylpolysiloxane is added to form a paste, wax, pigment, preservative, antioxidant, and silicone KF945 are added and dispersed at 90°C.

Laponite is then added and dispersed in the same manner. Water and a humectant were gradually added at 85°C and dispersed using a homomixer. After degassing, add the fragrance and stir gently. 80℃
Fill it into a designated stick-shaped container and assimilate it.

As shown by the scores in Table 2, Example 4 was a stick-like lip gloss that was not sticky, had a smooth feel, was easy to use, and had a sufficient gloss effect.

Note that Comparative Example 3 cannot be used as a cosmetic because of poor compatibility.

Patent applicant: Shiseido Co., Ltd.

Claims (1)

[Claims] (1) A polishing composition characterized by containing as essential components an organic silicone resin consisting of units of average formula (A), a low degree of polymerization silicone oil represented by general formula (B), and a hydrocarbon wax. thing. (A) RnSiO_(_4_-_n_)_/_2 (R represents an alkyl group having 1 to 6 carbon atoms or a phenyl group, and n represents a value from 1.0 to 1.8) (B) ▲ Formula, Chemical formulas, tables, etc. are available▼ (n is an integer from 1 to 20, R represents an alkyl group or phenyl group with carbon numbers of 1 to 6)