KR20130028767A - A silicone composition for handicraft - Google Patents

Abstract

The present invention relates to a "cooperative low specific gravity silicone composition"; Its purpose is to make the workpiece (model) without sticking with the main component of inorganic compound with excellent transparency and to make it work without sticking to it. It can be expressed and floated in water.
According to the "cooperative low specific gravity silicone composition" according to the present invention for this purpose; A gel-based silicone base provided with 60 to 80% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% based on the total weight of the silicone composition and consisting of a powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of an oil to prevent solidification; It is provided with 3 to 10% by weight of the total silicone composition and the silica-based hollow filler for low specific gravity; It is characterized by consisting of a mixture.

Description

Co-operative low specific gravity silicone composition {A SILICONE COMPOSITION FOR HANDICRAFT}

The present invention relates to a functional silicone composition; More specifically, it is not sticky and can be reused because it does not harden even after being left for a long time after making the workpiece without sticking. It is about.

Generally known rubber clay (also known as rubber clay) is made so that children can easily play peacock, and is produced / sold as oily rubber clay or water-based rubber clay. Oily clay can maintain its shape as it is stored after making the sculpture, but it is difficult for children to make a model using the rubber clay. And the water-based rubber clay is easy to use for children because the dough is easy to play, while the content of the moisture content of the sticky phenomenon in the production, the shrinkage and twisting phenomenon occurs when dried and difficult to store for a long time. In addition, the above-mentioned oil-based rubber clay and water-based rubber clay has a disadvantage that it is hard to be easily reused if left after manufacturing the workpiece.

To solve this disadvantage; Applicant has secured the right to file a working rubber (working model) after the application of a rubber rubber clay that can not be hardened even after being left for a long time as of June 8, 2010 (Patent Registration No. 10-1012314). The rubber ball clay disclosed in the applicant's Invention Patent No. 10-1012314 includes; A gel-based silicon base provided with 60 to 80% of the total weight of the rubber clay and made of a mixture of siloic acid, silicon, dimethyl, methylvinyl and vinyl group-terminated; It is provided with 15 to 35% by weight of the total rubber clay and made of a powder-based silica-based plasticity regulator for hardness control; It is provided with 1 to 5% by weight of the total rubber clay and made of polydimethylsiloxane system to prevent solidification in the form of an oil to prevent solidification; It is provided with 0.1 to 1% by weight of the total rubber clay and has an antimicrobial agent for preventing bacterial propagation; Characterized in that made by mixing.

As a result, the base material consists of silicone base and polydisiloxane anti-solidification agent, which are excellent in transparency, and are excellent in transparency and non-sticky, so they can be reused because they do not harden even after being left for a long time without making them work. It has an effect. In addition, a small amount of the antimicrobial agent is added, there is an advantage that can prevent the breeding of bacteria even by using rubber clay repeatedly.

However, in the rubber rubber clay disclosed in the above Patent No. 10-1012314, there is an advantage that it can be reused because it does not harden even after being left for a long time, but its specific gravity is considerable so that it can sink in water and play with various places. .

The present invention is to solve this problem; The object of the present invention is to make the workpiece (model) without sticking to the hand as a main component of the inorganic compound, so that it is not hardened even if left in the air after being made into a workpiece (model), as well as having a low specific gravity through the hollow filler It is to provide a "working low specific gravity silicone composition" that can be soft and light in texture and float in water.

Another object of the present invention is to provide a "cooperative low specific gravity silicone composition" which can prevent bacterial propagation by adding an antimicrobial agent to the silicone composition.

In addition, another object of the present invention is to provide a "working low specific gravity silicone composition" capable of producing a luminous work for various atmospheres by adding a photoluminescent agent to the silicone composition.

According to an aspect of the present invention, A conjugated low specific gravity silicone composition composed of an inorganic compound that can be used as a reaction;

The conjugated low specific gravity silicone composition; A gel-based silicone base provided with 60 to 80% by weight of the total silicone composition and having a mixture of siloxane and silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 3 to 10% by weight of the total silicone composition and the silica-based hollow filler for low specific gravity; It is characterized by consisting of a mixture.

The present invention also provides A conjugated low specific gravity silicone composition composed of an inorganic compound that can be used as a reaction;

The conjugated low specific gravity silicone composition; A gel-based silicone base provided with 60 to 80% by weight of the total silicone composition and having a mixture of siloxane and silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 30% based on the total weight of the silicone composition and consisting of a powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 0.3 to 5% by weight of the total silicone composition and the acrylic hollow filler for low specific gravity; It is characterized by consisting of a mixture.

The present invention also provides 0.1 to 1% by weight of the total silicone composition is characterized in that the low specific gravity silicone composition is made by further mixing the antimicrobial agent to prevent bacterial growth.

The present invention also provides It is provided with 1 to 3% by weight of the total silicone composition, characterized in that the low specific gravity silicone composition is made by further mixing the color pigments to produce a color.

The present invention also provides It is characterized in that the low specific gravity silicone composition is formed by further mixing 1 to 10% of the photosensitive agent relative to the total weight of the silicone composition.

According to the "working low specific gravity silicone composition" according to the present invention consisting of a mixture as described above; It is not sticky with inorganic compounds as a main ingredient and does not stick to hands. After making a workpiece (model), it is not hardened even after being left in the air, and can be reused. It is possible and has the advantage of making a workpiece that can float in water.

Furthermore, according to the "cooperative low specific gravity silicone composition" according to the present invention; Since a small amount of the antimicrobial agent is mixed with the basic raw material, there is an advantage that can prevent bacterial growth even if the silicone composition is repeatedly used.

Furthermore, according to the "cooperative low specific gravity silicone composition" according to the present invention; By mixing color pigments with basic materials with excellent transparency, there is an advantage that can be applied to amusement products that can make various color workpieces.

Furthermore, according to the "cooperative low specific gravity silicone composition" according to the present invention; By mixing the photoluminescent agent with the base material having excellent transparency, there is an advantage to make a workpiece having a luminous function.

Hereinafter, one preferred embodiment and physical properties according to the present invention will be described in detail, which is intended to explain in detail enough that one of ordinary skill in the art can easily carry out the invention. This does not mean that the technical spirit and scope of the present invention is limited.

The low specific gravity silicone composition according to the present invention is made of a silicone base, a plasticity control agent, an anti-solidification agent, and a hollow filler. In addition, an antimicrobial agent, a color pigment, and a photoluminescent agent may be mixed to suppress bacterial growth and various colors and luminous rays. You can give a function.

The silicone base contains 60 to 80 parts by weight based on the total silicone composition, and consists of siloxane and silicones, dimethyl, methylvinyl and vinyl group-terminated. The silicone base composed of the above components serves to maintain the shape of the functional silicone composition. Such a silicone base may be contained in an amount of 60 to 80 parts by weight based on the total weight of the silicone composition to facilitate molding and to maintain a shape. When the silicon base is contained in an amount exceeding 80 parts by weight, the formability of the work piece is improved, but the shape is easy even after making the work piece. It can be modified. In an embodiment of the present invention, the silicone base may be a siloxane and chemicals (Siloxanes and silicones), dimethyl (Dimethly), methylvinyl and vinyl group-terminated of Chemical Service Summary No. 68083-18-1. (vinyl group-terminated) was mixed in a gel state.

The plasticity control agent is contained 15 to 25 parts by weight based on the total weight of the silicone composition, made of a powder-based silica, it is contained in the silicone composition serves to determine its plasticity (hardness). These plasticity modifiers are in the form of powder of silica particles of 5 to 50,000 millimicrons, and it is preferable to use silicon dioxide (CAS No) 7631-86-9. The silica may also be selected from the group consisting of dry silica having a particle size of 5 to 20 millimicrons and wet silica having a particle size of 20 to 2,000 millimicrons and diatomite having a particle size of 2,000 to 50,000 millimicrons Or more. The dry silica (Fumed Silica) is very excellent in transparency and has the advantage of expressing a variety of colors clear, wet silica (Precipitated Silica) is not very excellent in transparency but can express the color clear. And since diatomaceous earth has a light gray or beige color, diatomaceous earth is not suitable for producing clear colors, but it is suitable for expressing dark colors.

The anti-solidifying agent is contained in 1 to 5 parts by weight based on the total weight of the silicone composition, is made of a polydimethylsiloxane, and is contained in the silicone composition serves to prevent its solidification. Such anti-solidification agents are in the form of transparent oils, preferably using polydimethylsiloxane of Chemical Service Summary No. (CAS No) 63148-62-9. The anti-solidification agent composed of the above components serves as a lubricant to soften the silicone composition while delaying the curing and curing of the silicone composition over time. In addition, the anti-solidification agent composed of polydimethylsiloxane is widely used in women's cosmetics and the like, and serves to prevent the solidification of the silicone composition, as well as to brighten the shine and brightness on the surface of the silicone composition.

The hollow filler is made of 3 to 10 parts by weight of the silica-based hollow filler with respect to the total weight of the silicone composition, it is contained in the silicone composition serves to lower the specific gravity thereof. The hollow filler may be composed of an acrylic in addition to the silica-based, it serves to determine the plasticity of the silicone composition with a plasticity control agent while achieving a low specific gravity. In the first embodiment of the present invention, the hollow filler was applied under the product name GLASS BUBBLE of 3M, which is a high strength, low specific gravity additive made of soda lime borosilicate glass which is resistant to moisture and is very chemically stable. The main characteristics of the hollow filler of 3M company as described above can reduce the specific gravity of the silicone composition and reduce the weight, there is a soft surface advantage. In an embodiment of the present invention, when the silica-based hollow filler is mixed about 3% by weight of the total silicone composition, the specific gravity may be reduced to about 0.95, and when mixed about 10%, the specific gravity may be reduced to about 0.8.

On the other hand, the antimicrobial agent that can be mixed additionally contains 0.1 to 1 parts by weight based on the total weight of the silicone composition, and serves to prevent the growth of bacteria in the silicone composition. Such antimicrobial agents can be used in any form, such as liquid or powder, as long as they can impart antimicrobial properties to the silicone composition, and the silicone composition containing such antimicrobial agents can inhibit the growth of bacteria after production is completed, so that the silicone composition can be played with toys. It serves to block the infection of the user from bacteria.

In addition, the color pigment may be additionally mixed in an amount of 1 to 3 parts by weight based on the total weight of the silicone composition, and serves to impart a color (color) to the silicone base composition having excellent transparency. The silicone composition has a milky white color when manufactured by mixing only a silicone base, a plasticity control agent, a solidification inhibitor, and a hollow filler, and when a color pigment having a color such as red, green, and blue is mixed therein, a functional silicone of various colors A composition can be made.

In addition, the photoluminescent agent may be additionally mixed in an amount of 1 to 10 parts by weight based on the total weight of the silicone composition, and when the aluminum-based photoluminescent agent having a particle size of 3 to 10,000 milli microns is mixed, the light energy accumulates on its own, A low specific gravity silicone composition can be produced. In the embodiment of the present invention, although the aluminum series is adopted as the photoluminescent agent, various kinds of photoluminescent agents may be selected and applied.

Hereinafter, the production process method and the physical properties of the low-weight silicone composition according to the present invention using the composition as described above will be described with reference to Examples.

≪ Example 1 >

70 parts by weight of the silicone base, 17 parts by weight of the plasticity control agent, 3 parts by weight of the solidification inhibitor, 10 parts by weight of the silica-based hollow filler was mixed and kneaded to prepare a functional silicone composition.

≪ Comparative Example 1 &

80 parts by weight of the silicone base, 13 parts by weight of the plasticity regulator, 3 parts by weight of the solidification inhibitor, 4 parts by weight of the silica-based hollow filler was mixed and kneaded to prepare a functional silicone composition.

Comparative Example 2

38 parts by weight of the silicone base, 57 parts by weight of the plasticity regulator, 3 parts by weight of the solidification inhibitor, 2 parts by weight of the silica-based hollow filler was mixed and kneaded to prepare a working silicone composition.

The plasticity of the functional silicone composition prepared in Example 1 and Comparative Examples 1 to 2 over time (Units) was measured and shown in Table 1 below.

(However, the plasticity meter used as a test criterion is obtained by inserting a sample between two parallel shelves and applying a predetermined load to read plasticity by reading time and thickness changes with a dial indicator;

① Specification: ASTMD-926

② Type: Williams Type

③ Standard Specification: Pressurized Load: 5Kg, Pressurized Area: Diameter 60mm,

            Dial gauge: Stroke 15 mm or more, 1/100 mm, body weight: approx. 10 kg

④ Sample preparation: sample thickness 10mm, cylinder diameter 16mm

⑤ Test method: a. Set the dial indicator to zero.

             b. Wait until the tester environment temperature has stabilized.

             c. Quickly insert the sample between the two parallel shelves.

             d. Read the gauge after the time you want to measure.

TABLE 1

As shown in Table 1, the functional silicone composition prepared in Example 1 did not harden at all even after being left at room temperature for a long time, and the product model was well shaped even when the workpiece was molded into the product due to proper plasticity. It is not easy to form the workpiece, so it can be stored for a long time.

However, the functional silicone composition prepared in Comparative Example 1 was not solid at all even after being left at room temperature for a long time, and the plasticity was too low, so that the model of the workpiece was distorted even when molding the workpiece, and the functional silicone prepared through Comparative Example 2 The composition was impossible to manufacture the workpiece because the product was not made and broken.

The plasticity over time change (units) of the functional silicone composition prepared in Example 1 and other companies' products is measured and shown in Table 2 below.

<Table 2>

As can be seen in Table 2 above, in the case of the functional silicone composition according to the present invention, there may be some errors in the measurement, but even when left at room temperature for a long time there is no large change in the degree of plasticity, In case of company A, plasticity improves as time goes by. If more than 1 day elapses, the surface is cracked and work is impossible.In case of company B, plasticity increases as time passes. If the above elapses, the surface is hardened like a sponge, so it is impossible to work. In the case of C company, the plasticity is high from the beginning, and it is very unsuitable for infants and children to make a workpiece.

In addition, by controlling the content ratio of the silica-based hollow filler that is essentially mixed in the silicone composition according to the present invention by reducing the specific gravity of the silicone composition to about 0.8 ~ 0.9 to enable a smoother and lighter texture expression and create a product that can float in water It can be used in various environments.

On the other hand, as another embodiment of the present invention can be applied hollow filler acrylic. A conjugated low specific gravity silicone composition according to another embodiment of the present invention; A gel-based silicone base prepared from 60% to 80% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated; A plasticity modifier for preparing a hardness of 15 to 30% based on the total weight of the silicone composition and consisting of a powder-based silica; It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification; It is provided with 0.3 to 5% by weight of the total silicone composition and the acrylic hollow filler for low specific gravity; It can be mixed.

The acrylic hollow filler is made of 0.3 to 5 parts by weight based on the total weight of the silicone composition, it is contained in the silicone composition serves to reduce the specific gravity thereof. In another embodiment according to the present invention, when the acrylic hollow filler is mixed in an amount of about 0.3% with respect to the total weight of the silicone composition, the specific gravity may be reduced to about 0.8, and when mixed about 5%, the specific gravity may be reduced to about 0.45.

As described above in another embodiment of the present invention as described above, in addition to the essential components of the silicone composition, the antimicrobial agent, color pigments and photoluminescent agent may be mixed to inhibit bacterial propagation and may impart various color and luminous functions. Of course.

Claims (8)

A conjugated low specific gravity silicone composition composed of an inorganic compound that can be used as a reaction;
The cooperative low specific gravity silicone composition is;
A gel-based silicone base provided with 60 to 80% by weight of the total silicone composition and formed by mixing siloxane with silicon, dimethyl, methylvinyl and vinyl group-terminated;
A plasticity modifier for preparing a hardness of 15 to 25% with respect to the total weight of the silicone composition and made of powder-based silica;
It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification;
It is provided with 3 to 10% by weight of the total silicone composition and the silica-based hollow filler for low specific gravity; A conjugated low specific gravity silicone composition comprising a mixture. The method of claim 1,
The cooperative low specific gravity silicone composition is;
0.1 to 1% by weight of the total silicone composition and an antimicrobial agent to prevent bacterial growth; A conjugated low specific gravity silicone composition, which is made by further mixing. The method of claim 1,
The cooperative low specific gravity silicone composition is;
1 to 3% by weight of the total silicone composition and a color pigment for producing a color; A conjugated low specific gravity silicone composition, which is made by further mixing. 3. The method according to claim 1 or 2,
The cooperative low specific gravity silicone composition is;
1-10% of the photoluminescent agent by weight of the total silicone composition; A conjugated low specific gravity silicone composition, which is made by further mixing. A conjugated low specific gravity silicone composition composed of an inorganic compound that can be used as a reaction;
The cooperative low specific gravity silicone composition is;
A gel-based silicone base provided with 60 to 80% by weight of the total silicone composition and having a mixture of siloxane and silicon, dimethyl, methylvinyl and vinyl group-terminated;
A plasticity modifier for preparing a hardness of 15 to 30% based on the total weight of the silicone composition and consisting of a powder-based silica;
It is provided in 1 to 5% by weight of the total silicone composition and composed of polydimethylsiloxane system to prevent solidification in the form of oil to prevent solidification;
It is provided with 0.3 to 5% by weight of the total silicone composition and the acrylic hollow filler for low specific gravity; A conjugated low specific gravity silicone composition comprising a mixture. 6. The method of claim 5,
The cooperative low specific gravity silicone composition is;
0.1 to 1% by weight of the total silicone composition and an antimicrobial agent to prevent bacterial growth; A conjugated low specific gravity silicone composition, which is made by further mixing. 6. The method of claim 5,
The cooperative low specific gravity silicone composition is;
1 to 3% by weight of the total silicone composition and a color pigment for producing a color; A conjugated low specific gravity silicone composition, which is made by further mixing. The method according to claim 5 or 6,
The cooperative low specific gravity silicone composition is;
1-10% of the photoluminescent agent by weight of the total silicone composition; A conjugated low specific gravity silicone composition, which is made by further mixing.