JPS6059942B2 - Silicone emulsion polish composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to silicone polish compositions that provide superior gloss.

Silicone oil, which is mainly composed of dimethylpolysiloxane, is said to give a beautiful luster and smooth texture to various solid surfaces, so it can be used to soak cloth as it is, or
Alternatively, it is used as a polishing agent by dispersing it in water or dissolving it in an organic solvent, and when added to conventional polishing agents whose main ingredient is wax, it retains the gloss better and is less likely to stain. Therefore, it is also used as a compounding raw material for polishing agents.

However, regarding this type of silicone polishing agent,
1. Improving the luster of treated surfaces such as furniture, plastics, and diamonds, 2. Strengthening protection against environmental causes such as ultraviolet rays and ozone, 3. Improving durability and sustainability, 4. Improving water repellency, and 5. Ease of application. 6. Reduction of stickiness, 7. Reduction of penetration into base materials, etc., and various improvements have been proposed for these factors. In other words, it has been proposed to use silicone oil in combination with natural oils such as castor oil, or polyols such as polyethylene glycol and glycerin, but silicone oil and these other components lack compatibility. As a result, this method has the disadvantage that the deep and transparent luster unique to silicone oil is lost, and the method of emulsifying silicone oil itself has the disadvantages of lack of luster, poor durability, and water repellency. It was hot. The present invention aims to solve these disadvantages and shortcomings and provide a polishing agent that satisfies each of the above-mentioned factors. The present invention relates to a silicone emulsion polish composition characterized in that it is formed by emulsifying 3 to 3 parts of a rubbery diorganopolysiloxane having a molecular weight of 200,000 s or more.

To explain this, the present inventors have conducted various studies on silicone-based compositions that can improve gloss without impairing the deep and transparent luster unique to silicone.
This objective can be achieved by using a combination of silicone oil and rubbery diorganopolysiloxane, and surfaces treated with this composition are said to have good durability and water repellency, and will not seep into the treated surface. They discovered this and completed the present invention.

The diorganopolysiloxane oil used in the silicone emulsion polish composition of the present invention has a viscosity at 25°C of 10,000 CS or less, preferably 100 to 1,0
It is considered to be 00CS.

This is because when the CS is higher than 10,000 CS, the resulting composition has difficulty spreading and becomes sticky after application. Further, this diorganopolysiloxane oil is preferably a diorganopolysiloxane whose molecular terminals are capped with trimethylsilyl groups. The organic groups may be substituted with amino groups, polyether groups, epoxy groups, trifluoropropyl groups, α-methylstyrene groups, etc., but these organic groups are From the compatibility of
Preferably, up to 5 mol°C are methyl groups. On the other hand, the rubbery diorganopolysiloxane constituting the silicone emulsion polish composition of the present invention is considered to be an essential component for improving gloss, durability, and water repellency, and this effect is due to the viscosity of this component. This is achieved by setting the CS to 2,000,000 or more. However, if the amount of this rubbery diorganopolysiloxane is less than 3 parts by weight based on 100 parts by weight of the aforementioned diorganopolysiloxane oil, the effect will be small, and if it is more than 3 parts by weight, the treated surface will be less susceptible to friction. Diorganopolysiloxane 1.
3 to 3 saliva volume per 0 volume. part, preferably in the range of 5 to 1 part. This rubbery diorganopolysiloxane is preferably a terminally hydroxylated dimethylsiloxane, which means that some of the methyl groups are hydrogen atoms, phenyl groups, vinyl groups, etc. Although it may be substituted with an organic group, it is preferable that 95 mol% of this organic group be a methyl group. The silicone emulsion polish composition of the present invention is a mixed emulsion of this diorganopolysiloxane oil and rubber z-shaped diorganopolysiloxane,
This preparation can be done either by emulsifying the two separately and then mixing them in the above-mentioned amount range, or by mixing them in advance and then emulsifying them. The emulsion of diorganopolysiloxane is
For example, it may be made by the method disclosed in Japanese Patent Publication No. 51-33540, in which tri- to hexamers of diorganopolysiloxane are emulsified in advance and then polymerized.

However, the emulsifier used in this emulsification does not need to be specified, and includes those conventionally used in the emulsification of silicone compounds, such as long-chain alkylysulfates, alkylysulfonates, polyoxyethylene alkylphates, etc. Anionic surfactants such as sodium enyl ether sulfate; nonionic surfactants such as polyoxyethylene alkylphenyl ether, polyoxyethylene alkyriether, and sorbitan monoester; or cationic surfactants such as benzylammonium salts. The active agent may be appropriately selected from among the active agents.

However, if the amount of this emulsifier is less than 1 part by weight based on the polyorganosiloxane oil, the stability of the emulsion will deteriorate, and if it is more than 3 parts by weight, the transparent gloss of this composition will be impaired. Therefore, the amount added is preferably in the range of 1 to 30 parts by weight, preferably 5 to 15 parts by weight, based on the diorganopolysiloxane oil. In addition,
When emulsifying this organopolysiloxane, water is added to the system, but if the amount added is less than 15 parts by weight, emulsification will be difficult, whereas if it is more than 500 parts by weight, water will be obtained. After applying the composition, the amount of siloxane deposited on the treated surface will be too small and the effect as a polishing agent will be reduced. It is preferable to do so.

The silicone emulsion compositions made by the method described above are particularly useful as polishes;
Depending on the purpose, various additives such as fragrances, colorants, preservatives, etc. may be added as appropriate. Next, examples of the present invention will be given.

Example 5 2 parts of dimethylpolysiloxane oil terminally blocked with trimethylsilyl groups (hereinafter abbreviated as polysiloxane I) having a viscosity of 00cS (25'C), poly(oxyethylene) and ononyl phenyl ether added. and water 73
After adding 0 parts, emulsify these with a homomixer,
This was homogenized by passing it through a Kaurin homogenizer at a pressure of 316 K,/Cl, (4,500 psi) to prepare emulsion (1).

On the other hand, 25 parts of octamethyltetrasiloxane, 5 parts of Nitsusan Syntrekis L (emulsifier manufactured by NOF Corporation: containing 35% sodium lauryl alcohol sulfate), and 745 parts of water were homogenized in the same manner as above, and the emulsified 5 parts of MR type cation exchange resin (Amperlite 15 manufactured by Rohm & Haas Co., Ltd.) was added to the mixture, and the reaction was carried out at 70°C for 7 hours with heating and stirring.
The mixture was allowed to stand for a while to polymerize, and then neutralized to obtain an emulsion (■) of rubbery dimethylsiloxane (hereinafter abbreviated as polysiloxane (■)). When dimethylpolysiloxane was isolated from this emulsion and its viscosity was measured, it was found to be a rubber-like material with no fluidity of more than 200,000 S.

Next, this dimethylsiloxane oil emulsion (1
) to 1 (4) parts, 5 to (5) parts of a rubbery dimethylpolysiloxane emulsion (■) is added, and the two are mixed by shaking, and then mixed with commercially available black vinyl chloride leather and It was applied to plywood with gauze, and then the surface was lightly brushed 10 times to examine the various physical properties of this treatment, and the results shown in the table below were obtained.

For comparison, the blending ratio of emulsion (■) to emulsion (1) in the above was 2.5% and 50%.
(Comparative Examples 1 and 2), cases where this emulsion (1) and emulsion (■) are used alone (Comparative Examples 3 and 4), and cases where emulsion (1) and emulsion (■) in the above are used alone. Mixing ratio I/■=1
Viscosity 5 corresponding to siloxane viscosity when set to 0V30
0000CS (25C) dimethylpolysiloxane oil with terminal trimethylsilyl groups is used, and poly(oxyethylene), 5 to 20 lauryl ether (
When using an emulsion (■) obtained by adding 9) parts and 72 parts of water and homogenizing it with a colloid mill (Comparative Example 5)
), the physical properties of the treated surface were measured in the same way, and these are also listed in the table below.

In addition, each physical property in the table below shows the results of measurement or determination by the following method.

Gloss: According to the gloss measurement method of JIS Z874l.
The 60 degree specular gloss was measured.

Claims (1)

[Claims] 1. A silicone made by emulsifying 100 parts by weight of a diorganopolysiloxane oil having a viscosity of 10,000 cS or less at 25°C and 3 to 30 parts by weight of a rubbery diorganopolysiloxane having a viscosity of 2,000,000 cS or more at 25°C. Emulsion polish composition.