JPH0657821B2 - Polish - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention is used for the purpose of polishing and protecting a coated surface of a polishing agent, more specifically, a car body, household electric appliances, flooring materials, office supplies and the like. The present invention relates to a paste or gel polish.

Conventional Technology and Problems Thereof Conventionally, this kind of paste-like or gel polishing agent generally contains wax components such as microcrystalline wax and carnauba wax. That is, conventionally, this type of product uses wax or wax and silicone oil, to which a solvent, water, an emulsifier and the like and an abrasive as necessary are added, and the mixture is heated and colloid mill and other agitators are used. Agitated by a device to make fine particles, dissolve,
It is an opaque paste or gel that is dispersed. These conventional polishing agents have not been obtained with a transparent and beautiful appearance even by selection of materials used and manufacturing conditions.

Since the wax component used in the above conventional polish is originally lacking in transparency, the polish containing the wax component does not have transparency, and thus can be obtained by using such an opaque polish. The protective coating layer also has insufficient gloss and transparency. In addition, the wax component has problems that it tends to become uneven during use, its spread is insufficient, and it cannot be easily wiped off after working. In addition, the pasty or gel-like conventional polishes have a large degree of change in consistency depending on the ambient temperature, such as hardening at low temperatures in winter, or solvent separation at high temperatures in summer, becoming extremely soft, etc. There is a problem.

Means for Solving the Problems The present inventor has conducted extensive studies to solve various drawbacks of the conventional pasty or gel polishes. As a result, they have found that a transparent polishing agent can be obtained when ultrafine particle silica is added to a mixture of silicone oil and a petroleum solvent having a specific composition. Furthermore, it has been found that when an amino-modified silicone oil is blended in addition to the above ultrafine particle silica, a polishing agent with further improved performance can be obtained. The present invention has been completed based on these new findings.

That is, the present invention relates to a petroleum solvent 40 to 99 containing (a) 1 to 60% by weight of silicone oil and (b) 10% by weight or more of at least one kind of aromatic hydrocarbon solvent and isoparaffin hydrocarbon solvent. Mixture consisting of 10% by weight
(C) 7 to 70 parts by weight of ultrafine particle silica (0 part by weight) is blended, and it has transparency and is in the form of paste or gel, and the above-mentioned ultrafine particles. In addition to silica, 0.1 to 20 parts by weight of amino-modified silicone oil (d) is blended to provide a polishing agent having transparency and being in the form of paste or gel. To do.

The silicone oil used as the component (a) in the present invention is a component forming the protective coating layer, and various known ones are used. Specific examples thereof include linear dimethyl silicone oil, branched dimethyl silicone oil, and methylphenyl silicone oil, but the invention is not limited thereto. The viscosity range of these silicone oils is also not particularly limited, but generally the viscosity at 25 ° C is 5
Approximately 1,000,000 centistokes, preferably 350 to 30,000 centistokes can be used.

The petroleum solvent used as the component (b) in the present invention is
It is a medium for uniformly dispersing other components. The petroleum solvent used in the present invention is a petroleum solvent containing 10% by weight or more of an aromatic hydrocarbon solvent and / or an isoparaffin hydrocarbon solvent, and the boiling point range of the distillate is 8
It is about 0 to 300 ° C. In the present invention, the composition is one of the important factors for imparting transparency. That is, in the present invention, it is important that the aromatic hydrocarbon solvent and / or the isoparaffin hydrocarbon solvent is present in the petroleum-based solvent in an amount of 10% by weight or more. Therefore, the transparency of the obtained polish is extremely low. As the aromatic hydrocarbon solvent,
Various substances used in this field can be used, and there is no particular limitation, but especially boiling point 1 mainly containing alkylbenzenes having 1 to 4 lower alkyl groups as substituents
About 00 to 200 ° C, more preferably 130 to 180 ° C
Something or a mixture of these is good. Various types of isoparaffin hydrocarbon solvents can be used, but those having a boiling point of about 120 to 300 ° C. or a mixture thereof are particularly preferable. The component (b) of the present invention may be composed of only these aromatic hydrocarbon solvents and / or isoparaffin hydrocarbon solvents, and other naphthenic hydrocarbon solvents may be used as long as they contain 10% by weight or more of these. It may contain a hydrogen solvent, a normal paraffin hydrocarbon solvent, or the like. In the present invention, the petroleum solvent that can be preferably used contains 20 to 60% by weight of each of the above aromatic hydrocarbon solvent and isoparaffin hydrocarbon solvent. Particularly preferably, the aromatic hydrocarbon solvent is 40 to 60.
It is a three-component petroleum solvent containing 20% by weight of an isoparaffinic hydrocarbon solvent and 10 to 30% by weight of a naphthene hydrocarbon solvent. A two-component solvent containing 30 to 40% by weight of an aromatic hydrocarbon solvent and 60 to 70% by weight of an isoparaffinic hydrocarbon solvent is also preferable.

In the present invention, the silicone oil as the component (a) and the petroleum solvent as the component (b) are used in combination.
The usage ratio of both can be appropriately selected from a wide range. However, in general, the amount of the component (a) is about 1 to 60% by weight,
The component (b) is preferably about 40 to 99% by weight, more preferably about 10 to 20% by weight of the component (a) and more preferably about 80 to 90% by weight of the component (b).

The ultrafine particulate silica which is the component (c) of the present invention imparts a paste or gel property to the polish and, at the same time, imparts transparency when used in a fixed amount. According to the study by the present inventor, if the amount of the component (c) is too small, the consistency is too small to form a paste. On the other hand, if the amount is too large, the transparency is lowered. Generally, in order to ensure transparency, about 7 to 70 parts by weight, preferably 9 to 30 parts by weight of the component (c) is used per 100 parts by weight of the total amount of the components (a) and (b).
It is necessary that the amount is about 10 parts by weight, more preferably about 10 to 15 parts by weight. The average diameter of the primary particles is about 40 mμ or less, preferably about 7 to 40 mμ, which generally gives good transparency. The ultrafine particle silica may be one produced by a so-called combustion hydrolysis method using silicon tetrachloride as a raw material, or one produced by a pulverization method, and other production methods. It may be one. Further, it may be anhydrous or hydrous. Particularly preferred ultrafine particle silica is
Average diameter of about 13 ~ 19m produced by combustion hydrolysis method
μ of anhydrous silica in which the silanol group on the particle surface is lower alkylated (particularly methylated).

In the present invention, in addition to the components (a), (b) and (c) described above, an amino-modified silicone oil can be further compounded as a component (d), whereby the durability of the resulting polishing agent is improved. In addition to improving the properties and gloss, a suitable consistency can be imparted when the gel polish is obtained, and the gel polish can be extended easily. The amino-modified silicone oil has an amine value (1N required to neutralize amino groups in 1 g of sample).
It is preferably in the range of about 0.1 to 10 m of HC. The viscosity range can be selected from a wide range without particular limitation, but generally, a viscosity range of 10 to 4000 centistokes at 25 ° C can be used. Although the amount of the amino-modified silicone oil used varies depending on the amine value, the required consistency, etc., it is generally 0.1% with respect to 100 parts by weight of the total amount of the components (a) and (b). 1 to 20 parts by weight, preferably 0.3 to 10
It is about part by weight, more preferably about 0.5 to 2 parts by weight.

Further, in the present invention, additives such as fragrances and dyes may be blended, if necessary, within a range not impairing transparency.

The polishing agent of the present invention can be obtained by simply mixing the above-mentioned components in a predetermined ratio at room temperature until the components are uniform. Needless to say, the temperature may be slightly elevated and mixed. Also,
The order of mixing each component is not limited, and for example, the component (a) may be added to the component (b), and then the component (c) and, if necessary, the component (d) may be added. The component (c) and optionally the component (d) may be added to the components, and then the component (a) may be added. Of course, each component may be added simultaneously and mixed. Any of various stirring devices used in this field can be used for mixing the respective components.

The polishing agent of the present invention thus obtained is filled in a suitable container to obtain a product.

EFFECT OF THE INVENTION Unlike the conventional opaque polish, the polish of the present invention has transparency. Therefore, the gloss obtained by using this has a transparent feeling and also has a high gloss increasing effect, so that both effects combine to obtain an extremely excellent gloss effect. Further, the protective coating layer obtained by the polishing agent of the present invention has excellent water resistance, and gloss is hardly impaired by the influence of water. Further in use, the polish of the present invention,
There are advantages such as less unevenness, easy spreadability, and easy wiping. In addition, the consistency does not change and the solvent does not separate due to the influence of the outside temperature. Further, since the polishing agent of the present invention has transparency, there is also an advantage that the coating color of the coating surface of an automobile or the like is more faithfully expressed. The transparency of the polish of the present invention can be changed from extremely highly transparent to low transparent by adjusting the types and amounts of the components (b) and (c). , Can be freely manufactured according to the intended use, consumer preference, etc. Further, the polish of the present invention is a product having a transparent and beautiful appearance due to its transparency, and the product image is very high.

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. In each example, "part" means "part by weight".

Moreover, each test is performed as follows.

A) Transparency: A glossing agent was put in a transparent container up to a height of 5 cm, and evaluated from the top with the naked eye from the following four levels.

A: Good to almost completely transparent B: Slightly transparent to good transparency C: Almost opaque to slightly transparent D: Opaque) Consistency JIS K2236 Annex "Classification method of waxes by the frequency test method" by.

C) Degree of gloss increase ... According to JIS K2236. It is to see how much the gloss increases before and after applying the polish.
The larger the number, the better.

D) Water resistance glossiness ... According to JIS K2236. After applying the polish, dip it in water for 24 hours and see how much the gloss decreases before and after it. The smaller the value, the better.

E) Ease of extension ... According to JIS K2236. The number of grams of sample required to stretch evenly over a panel of constant area. The smaller the value, the better.

F) Ease of wiping ... Indicates the number of wiping cycles required for wiping according to JIS K2236.

(G) Mura: A fixed amount of the sample was applied to a cloth and applied so as to draw an arc on a black automobile body, and the gloss after wiping was observed with the naked eye and evaluated in the following three stages.

A: Does not produce light and shade of gloss B: Produces a little light and shade of gloss C: Produces light and shade of gloss Examples 1 to 3 Each of the components shown in Table 1 below is used in a blending amount shown in Table 1 at room temperature. The mixture was agitated until uniform until a shaving type polish for automobiles was obtained.

COMPARATIVE EXAMPLE 1 As a petroleum-based solvent, the same as in Example 2, except that a solvent having a composition of 7% by weight of an aromatic hydrocarbon solvent and the balance of normal paraffinic hydrocarbon solvent was used, and a polishing type polishing agent for automobiles. Got

Table 2 shows the performance of the polishes obtained in Examples 1 to 3 and Comparative Example 1 described above.

It can be seen from Table 2 that the polishing agent of the present invention has transparency and is excellent in each of performances such as gloss increase degree, water resistance glossiness, spreadability, ease of wiping, and non-uniformity. In addition, from the results of Comparative Example 1, the aromatic hydrocarbon solvent was 10
It can be seen that the transparency becomes extremely low by using the petroleum-based solvent in an amount of less than wt%.

Examples 4 to 6 The components shown in Table 3 below were used in the amounts shown in Table 3 and stirred at room temperature until they were uniform, to give a shaving polish agent for automobiles.

Table 4 shows the performance of the polishes obtained in Examples 4 to 6 above.

Examples 7 to 9 The components shown in Table 5 below were used in the amounts shown in Table 5 and stirred at room temperature until they became uniform, to give a slurping polish for automobiles.

Table 6 shows the performance of the polishing agents of the present invention obtained in Examples 7 to 9 above.

It can be seen from Table 6 above that the polish of the present invention has high transparency and is excellent in other properties.

Example 10 and Comparative Example 2 The components shown in Table 7 below were used in the blending amounts shown in Table 7 and stirred at room temperature until they were homogeneous to obtain a polishing type polish agent for automobiles (Examples 10).

Silicone oils, petroleum-based solvents and N-lauroyl-L-glutamic acid-α, γ-di-n-described in Table 7 below.
Butylamide was used in the blending amount shown in Table 7, and these were heated and stirred at 100 to 130 ° C. to obtain a transparent solution. Ultrafine particulate silica was added to the solution at the same temperature, and the mixture was stirred uniformly and then cooled to room temperature to obtain a semi-solid type polishing agent for automobiles (Comparative Example 2).

Table 8 shows the performance of the polishes obtained in Example 10 and Comparative Example 2 above.

From Table 8 above, it can be seen that the polish of the present invention is transparent and is excellent also in the performances of increasing gloss, waterproof glossiness, spreadability, ease of wiping, and non-uniformity.
On the other hand, from the results of Comparative Example 2, when N-lauroyl-L-glutamic acid-α, γ-di-n-butyramide is used in place of the amino-modified silicone oil, the transparency becomes extremely low. I understand.

Claims (4)

[Claims] 1. A petroleum solvent containing 40 to 99% by weight of (a) 1 to 60% by weight of silicone oil and (b) 10% by weight or more of at least one of an aromatic hydrocarbon solvent and an isoparaffin hydrocarbon solvent. % Of a mixture of 100% by weight of (c) 7 to 70 parts by weight of ultrafine particle silica, which has transparency and is in the form of paste or gel. . 2. The ultrafine silica particles are anhydrous silica particles having an average diameter of 13 to 19 mμ produced by combustion hydrolysis method, and the silanol groups on the surface of the particles are lower alkylated. The polish according to item 1. 3. A petroleum solvent containing 40 to 99% by weight of (a) 1 to 60% by weight of silicone oil and (b) 10% by weight or more of at least one of an aromatic hydrocarbon solvent and an isoparaffin hydrocarbon solvent. % Of 100% by weight of a mixture of (c) 7 to 70 parts by weight of ultrafine silica and (d) 0.1 to 20 parts by weight of amino-modified silicone oil, and has transparency. Polishing agent characterized by being in the form of paste or gel. 4. The ultrafine particle silica is anhydrous silica having an average diameter of 13 to 19 mμ produced by combustion hydrolysis method, and the silanol groups on the particle surface are lower alkylated. The polish according to item 3.