Toyo Seikan Group Holdings, Ltd.

Renesas Electronics Corporation

Toyo Seikan Kaisha, Ltd.

Yasuhiro Kosaka

Kazuaki Ohashi

Akiko Ogata

Takahiro Kawakami

Hiroshi Shimomura

Akira Ishiko

Akiko Koganei

Hirokazu Kawagoshi

Shigeru Suzuki

Hirofumi Fujiwara

Daisuke Ikutame

A dispersion solution including a solvent which contains fine particles of a copper compound, a stabilizer, a fatty acid, a fatty acid ester of the fatty acid, and a polycarboxylic acid. The fine particles of the copper compound having antiviral property are homogeneously dispersed in the dispersion medium maintaining stability over extended periods of time.

Dispersion solution having antiviral property

Metallic copper fine particles coated with a fatty acid and an ester compound. Also disclosed is an antiviral agent containing the metallic copper fine particles and a method for producing the metallic copper fine particles.

Metallic copper fine particles and method for producing the same

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.

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

Fine metal particles of any one of Ag, Cu or Zn having a dispersing agent that is coordinated on the surfaces thereof, the dispersing agent having an acid value and an amine value which are both in a range of 0 to 20 mgKOH/g (wherein when either the acid value or the amine value is 0, the other one is not 0), and a dispersion solution in which the fine metal particles are dispersed. The fine metal particles and the dispersion solution containing the fine metal particles can be diluted with various kinds of solvents of either the water type or the organic type, and feature excellent dispersion property even after having been diluted.

Fine metal particles, dispersion solution containing fine metal particles, and process for the production thereof

An antibacterial resin composition comprising a thermoplastic resin or a thermosetting resin blended with a metal-carrying compound carrying at least one kind of metal ions selected from the group consisting of Ag, Cu, Zn, Co, and Ni, and a compound represented by the following formula (2): 

Antibacterial resin composition

A dispersion solution containing ultrafine metal particles, comprising a low-boiling solvent and, contained therein, ultrafine metal particles of any one of Ag, Cu or Zn having a fatty acid and a glyceride coordinated on the surfaces thereof. The dispersion solution contains, dispersed therein, ultrafine metal particles that have excellent antibacterial power at a high concentration without being aggregated. The dispersion solution maintains excellent dispersion property even after the passage of long periods of time and also exhibits very high degree of transparency even when it is mixed into a resin composition.

Dispersion solution containing antibacterial ultrafine metal particles and method of producing the same

A curable resin composition including a curable resin in which ultrafine metal particles modified with a fatty acid are dispersed. The ultrafine metal particles are fatty acid-modified ultrafine metal particles having a fatty acid coordinated on the surfaces of the ultrafine metal particles and a glyceride coordinated around the fatty acid or on the surfaces of the ultrafine metal particles.

Curable resin composition having antibacterial power

An antibacterial resin composition comprising a thermoplastic resin or a thermosetting resin blended with at least one kind of fatty acid metal salt selected from Ag, Cu, Zn, Co and Ni, and a compound represented by the following formula (2): 

In the related art, there is a problem that the condition of a load is monitored in an indirect manner so that an efficiency enhancing effect is not obtained. A switching regulator control circuit includes an oscillator for generating a carrier signal and a transistor drive circuit for driving a switching transistor and a synchronous rectification transistor based on a PWM signal generated based on the carrier signal. The oscillator switches the frequency of the carrier signal based on the direction of a source-drain voltage of the synchronous rectification transistor.

Switching regulator control circuit

An antibacterial resin composition comprising a thermoplastic resin or a thermosetting resin that contains a metal compound represented by the following formula (1), permitting the metal such as silver having antibacterial power to efficiently elute out and the eluted metal to remain stable as metal ions so that excellent antibacterial power can be exhibited using only a decreased amount of an expensive compound containing silver or the like, 

[Problems] To provide a resin composition containing ultrafine silver particles and having excellent antibacterial property as well as excellent deodorizing power against both the nitrogen type smelling components and the sulfur-containing smelling components. [Means for Solution] A resin composition obtained by heating and mixing a resin composition, a silver carboxylate and a carboxylic acid together. A thermoplastic resin, the silver carboxylate and the carboxylic acid are heated and mixed together at a temperature lower than a temperature at which the silver carboxylate starts decomposing but not lower than a melting point of the thermoplastic resin.

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Yokohama, Japan

Yasuhiro Kosaka