Antiviral agent, coating composition, resin composition and antiviral product

Inactive Publication Date: 2019-02-14
TOAGOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is an antiviral agent that has a high antiviral activity compared to existing agents and is made of an inorganic substance with heat resistance. It can be a light color material that is less colored or discolored, excellent in processability, and suitable for various applications such as the production of a coating composition and a resin composition. Additionally, the antiviral product containing this antiviral agent, such as a resin molded product and an article having a coating, exhibits a high antiviral activity and is durable as the antiviral agent would not be released or flow out with water.

Problems solved by technology

However, drugs having these antiviral properties have only a temporary effect and also involve a problem with heat resistance.
Therefore, sustained effects on antiviral products cannot be expected.
However, this inorganic antiviral agent is an inorganic peroxide-based agent, and thus still has problems in sustainability, processability, and the like.
There is also a problem that products containing these conventional antiviral agents, when brought into direct contact with a human body, irritate the skin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

Amorphous Magnesium Silicate

[0108]As raw materials, sulfuric acid, magnesium sulfate, and water glass were used, and they were mixed and reacted together. Next, the obtained precipitate was filtered, washed with water, dried, and pulverized to obtain a white amorphous magnesium silicate (SiO2 / MgO=1.3) powder. Using the obtained amorphous magnesium silicate powder as an antiviral agent (V1), the color L value, average particle diameter, water content, acid strength, and acid site concentration were measured to evaluate the antiviral effect. The results are shown in Table 1.

example 2

α-Type Zirconium Phosphate

[0109]A 15% aqueous zirconium oxychloride solution was added to a 75% aqueous phosphoric acid solution, and the mixed solution was aged at 100° C. for 12 hours. Thereafter, the obtained precipitate was filtered, washed with water, dried and crushed to obtain white α-type zirconium phosphate powder. Using the obtained α-type zirconium phosphate powder as an antiviral agent (V2), the color L value, average particle size, water content, acid strength and acid site concentration were measured to evaluate antiviral effect. The results are shown in Table 1.

example 3

α-Type Silver Zirconium Phosphate

[0110]A 15% aqueous zirconium oxychloride solution was added to a 75% aqueous phosphoric acid solution, and the mixed solution was aged at 100° C. for 12 hours. Thereafter, the obtained precipitate was washed with water and recovered. Next, this precipitate was stirred in an aqueous silver nitrate solution at 100° C. for 2 hours. Thereafter, the obtained precipitate was filtered, washed with water, dried, and crushed to obtain a white α-type silver zirconium phosphate powder containing 4.2% of silver. Using the obtained α-type silver zirconium phosphate powder as an antiviral agent (V3), the color L value, average particle size, water content, acid strength and acid site concentration were measured to evaluate the antiviral effect. The results are shown in Table 1.

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PUM

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Abstract

An antiviral agent of the present invention includes an inorganic solid acid having an acid site concentration of more than 0.005 mmol / g. The inorganic solid acid preferably includes an inorganic phosphoric acid compound, an inorganic silicic acid compound, or an inorganic oxide. An acid strength (pKa) of an acid site in the inorganic solid acid is preferably 3.3 or less.

Description

TECHNICAL FIELD[0001]The present invention relates to an antiviral agent containing an inorganic solid acid, and a coating composition, a resin composition, and an antiviral product each containing the antiviral agent. The antiviral agent of the present invention can be sprayed or coated onto textile products such as clothing, bedclothes and masks, filters for use in air purifiers, air conditioners, and the like, interior products such as curtains, carpets and furniture, automobile interior materials, and the like, or spread on surface layers of building materials such as wallpapers and flooring materials, thereby imparting the effect of reducing the virus activity.BACKGROUND ART[0002]In recent years, demands for sanitary and safe living environments have been increasing, for example, due to epidemics of Middle East Respiratory Syndrome (MERS) and influenza, and the development of various antiviral agents and antiviral products is being studied.[0003]Against coronaviruses, ethanol, ...

Claims

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Application Information

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IPC IPC(8): A01N59/06A01N59/16A01N59/20A01N25/10
CPCA01N59/06A01N59/16A01N59/20A01N25/10A01N59/26C01B33/22C01B25/372C01B25/45C01G23/053C09D5/14A61P31/12A01N25/08A01N25/34
Inventor SUGIURA, KOJI
Owner TOAGOSEI CO LTD
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