Dispersion liquid, method for producing the same, and copper compound particles
AssigneeToyo Seikan Group Holdings, Ltd.
InventorsAkiko OGATA, Kazuaki OHASHI, Yasuhiro KOSAKA
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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.
Claims23
A dispersion liquid including copper compound fine particles and a stabilizer both of which are contained in a non-aqueous solvent, and the copper compound fine particles are coated with fatty acid.
A method for producing a dispersion liquid including copper compound fine particles dispersed in the dispersion liquid, the method includes:
- introducing fatty acid copper and a stabilizer into glycol used as a high boiling point solvent, conducting heat-mixing to prepare a high boiling point solvent dispersion liquid containing the copper compound fine particles and the stabilizer, the copper compound fine particles being coated with fatty acid and dispersed in the high boiling point solvent dispersion liquid,
- mixing the high boiling point solvent dispersion liquid with a low boiling point solvent blended in advance with a dispersant, and
- separating the high boiling point solvent and the low boiling point solvent into two phases and extracting the copper compound fine particles coated with fatty acid from the high boiling point solvent into the low boiling point solvent.
A method for producing a dispersion liquid including copper compound fine particles dispersed in the dispersion liquid, the method includes:
- introducing fatty acid, a copper compound and a stabilizer into glycol used as a high boiling point solvent, conducting heat-mixing to prepare a high boiling point solvent dispersion liquid containing the copper compound fine particles and the stabilizer, the copper compound fine particles being coated with fatty acid and dispersed in the high boiling point solvent dispersion liquid,
- mixing the high boiling point solvent dispersion liquid with a low boiling point solvent blended in advance with a dispersant, and
- separating the high boiling point solvent and the low boiling point solvent into two phases and extracting the copper compound fine particles coated with fatty acid from the high boiling point solvent into the low boiling point solvent.
A method for producing a glycol dispersion liquid containing cupric oxide fine particles and saccharin, the cupric oxide fine particles being dispersed in the glycol dispersion liquid, the method includes:
- introducing fatty acid copper and saccharin into glycol and conducting heat-mixing to decompose the fatty acid copper.
Copper compound fine particles coated with fatty acid and an ester compound of the fatty acid.
An antiviral formed product including an antiviral composition, wherein the antiviral composition is contained in the antiviral formed product or fixed on the outermost surface of the antiviral formed product, and the antiviral composition contains monovalent copper compound particles and a stabilizer, the monovalent copper compound particles being coated with fatty acid.
Dependencies are inferred from the claim text.