Dispersion liquid, method for producing the same, and copper compound particles

a technology of dispersion liquid and copper compound, which is applied in the direction of biocide, transportation and packaging, animal husbandry, etc., can solve the problem that the ions cannot exhibit antiviral properties against viruses, and achieve the effect of efficiently exhibiting antiviral properties, efficient copper compound fine particles, and imparting antiviral properties

Pending Publication Date: 2022-08-04
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The dispersion liquid effectively stabilizes copper compound fine particles, maintaining their antiviral efficacy and preventing oxidation, allowing for homogeneous dispersion and long-term antiviral performance in coated products without compromising transparency.

Problems solved by technology

The metallic ions can exhibit antiviral properties against viruses such as an influenza virus having an envelope structure, but the ions cannot exhibit the antiviral properties against viruses that do not have such an envelope structure.

Method used

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  • Dispersion liquid, method for producing the same, and copper compound particles

Examples

Experimental program
Comparison scheme
Effect test

experimental example 1

[0117]2.5% by weight of copper stearate and 0.05% by weight of saccharin were added to diethylene glycol, which were then heated while being stirred to make a diethylene glycol dispersion liquid. 4.0% by weight of distilled water was added thereto at the time the temperature reached 140° C., and the liquid was further heated. After the temperature reached 190° C., the heat treatment was continued for 4 hours, and then, the diethylene glycol dispersion liquid was cooled to 60° C.

[0118]Then, butyl acetate containing 1.0% by weight of dissolved dispersant DISPERBYK-2090 (manufactured by BYK Additives and Instruments) was added thereto and stirred. After allowing the mixture to stand still for about 1 hour, a stratum of the butyl acetate was collected to obtain a cuprous oxide fine particles dispersion liquid.

experimental example 2

[0119]A dispersion liquid was produced in a manner similar to that of Experimental Example 1 except that the heating temperature was set to 210° C.

experimental example 3

[0120]A dispersion liquid was produced in a manner similar to that of Experimental Example 1 except that salicylic acid was added in place of saccharin.

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Abstract

The present invention relates to an antiviral dispersion liquid, a method for producing the same, and an antiviral formed product. This dispersion liquid contains copper compound fine particles and a stabilizer in a non-aqueous solvent, and the copper compound fine particles are coated with fatty acid. The copper compound fine particles are dispersed in a dispersion medium homogeneously and stably, thereby to exhibit efficiently the antiviral properties of the copper compound fine particles.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Rule 53(b) Divisional Application of U.S. application Ser. No. 16 / 087,266, filed Sep. 21, 2018, which is a National Stage of International Application No. PCT / JP2017 / 012727, filed Mar. 28, 2017, claiming priority based on Japanese Patent Application Nos. 2016-064734 and 2016-064740 filed Mar. 28, 2016, and Japanese Patent Application No. 2016-247641 filed Dec. 21, 2016, the above-noted applications incorporated herein by reference in their entireties.TECHNICAL FIELD[0002]The present invention relates to a dispersion liquid, a method for producing the same and copper compound particles. More specifically, the present invention relates to copper compound particles having antiviral properties, a dispersion liquid containing the copper compound particles present stably in a dispersion medium, a method for producing the same, and an antiviral formed product.BACKGROUND ART[0003]Conventionally, silver ions and copper (II) i...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A01N59/20A01N25/26A01N25/04A01N25/22B22F1/0545B22F1/102
CPCA01N59/20A01N25/22A01N25/04A01N25/26B22F9/24B22F1/0545B22F1/102A01N25/34A01N55/02
InventorOGATA, AKIKOOHASHI, KAZUAKIKOSAKA, YASUHIRO
OwnerTOYO SEIKAN GRP HLDG LTD