摘要:
The present invention addresses the problem of providing a novel, solid silver-copper alloy. Provided is a solid silver-copper alloy in which the concentration of copper contained in the silver-copper alloy is 0.1 - 99.94 wt%, and which has, as the principal constituent thereof, a non-eutectic structure which does not contain a eutectic when the solid silver-copper alloy is at room temperature. This silver-copper alloy can be produced by mixing a fluid containing silver ions and copper ions with a fluid containing a reducing agent, and separating silver-copper alloy particles therefrom. It is preferable to mix the fluid containing the silver ions and copper ions with the fluid containing the reducing agent in a thin-film fluid formed between processing surfaces arranged so as to face one another, capable of approaching toward and separating from one another, and capable of having at least one surface rotate relative to the other. The diameter of the particles of the silver-copper alloy is preferably 50nm or less. This solid silver-metal alloy may also be a solid alloy comprising one or more types of other metals in addition to silver and copper.
摘要:
Provided is a producing method for metal microparticles for which the particle diameter is controlled. At least two types of fluids to be processed are used, and at least one of those fluids to be processed is a metallic solution characterized in that a metal and/ or metallic compound is dissolved in a solvent. Of the fluids to be processed other than the above, at least one is a reducing agent fluid that includes a reducing agent. The fluids to be processed are mixed in a thin film fluid created between at least two processing surfaces (1, 2) which are disposed to face each other and can be brought closer or separated, at least one face rotating relative to the other, and metal microparticles for which the particle diameter is controlled are precipitated out. At that time, the particle diameter of the metal microparticles is controlled by varying particular conditions for at least one of the metallic solution and the reducing agent fluid introduced between the processing surfaces (1, 2) . The particular conditions are at least one type selected from a set comprising the introduction rate for the metallic solution and/ or reducing agent fluid and the pH of the metallic solution and/ or the reducing agent fluid.
摘要:
The problem addressed by the present invention is to provide a high heat-resistant phthalocyanine. The phthalocyanine is separated by mixing a phthalocyanine separation solvent and a phthalocyanine solution characterized in that a phthalocyanine starting material is dissolved in a solvent. The phthalocyanine is characterized by having high heat resistance, the decomposition temperature of the separated phthalocyanine being at least 10°C higher than the decomposition temperature of the phthalocyanine starting material. Also, the phthalocyanine solution may be the result of dissolving at least two types of phthalocyanine starting material in the solvent, the separated phthalocyanine being characterized by containing a solid solvent of the at least two types of phthalocyanine starting material and by the decomposition temperature of the separated phthalocyanine being at least 10°C higher than the decomposition temperature of a mixture of at least two types of phthalocyanine separated by mixing the phthalocyanine separation solvent and each of at least two types of phthalocyanine solution resulting from dissolving each of the at least two types of phthalocyanine starting material in a solvent.
摘要:
The problem addressed by the present invention is to provide; solid solution pigment nanoparticles having a homogeneous solid solution ratio; a method for producing solid solution pigment nanoparticles having a homogeneous solid solution ratio in each primary particle; and a method for controlling the solid solution ratio of solid solution pigment nanoparticles. The solid solution pigment nanoparticles are prepared by precipitating at least two types of pigment by mixing a pigment precipitation solvent and; at least one type of pigment solution characterized in that at least two types of pigment are dissolved in a solvent: or at least two types of pigment solution characterized in that at least one type of pigment is dissolved in a solvent. The solid solution pigment nanoparticles are characterized in that the solid solution ratio of the at least two types of pigment in the primary particles of the precipitated solid solution pigment nanoparticles with respect to the ratio of the at least two types of pigment in the pigment solution mixed with the pigment precipitation solvent having a precision within 25%.
摘要:
The surface of fine pigment particles is efficiently treated using low energy without causing a cost increase. Provided is a method of treating the surface of fine pigment particles, characterized by maintaining a small gap of 1 mm or narrower between two treating surfaces which are able to get close to and apart from each other and relatively rotate and using the gap between the two treating surfaces which is kept so narrow, as a passage for a fluid to be treated, thereby forming a thin film of the fluid to be treated (forced thin film) . Fine pigment particles are formed in this thin-film fluid (forced thin film) . The method is further characterized by modifying the surface of the formed fine pigment particles within the thin-film fluid (forced thin film).
摘要:
It is an object to provide a method for producing titanium dioxide superfine particles, which produces monodispersed titanium dioxide superfine particles depending on its purpose, causes no clogging with a product due to self-dischargeability, requires no great pressure, and is excellent in productivity. In the method for producing titanium dioxide superfine particles in a fluid containing a titanium compound by separation, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the titanium dioxide superfine particles are separated in the thin film fluid.
摘要:
The present invention provides a production method for obtaining a biologically ingestible material having an intended diameter with low energy as compared with conventional methods, the method includes mixing a fluid to be processed in a dispersed phase containing a pharmacologically active substance and a fluid to be processed in a continuous phase including at least a disperse solvent, while each of the fluids are retained in an independent state, in a thin film fluid formed between two processing surfaces arranged to be opposite to each other to be able to approach to and separate from each other, at least one of which rotates relative to the other, through independent pathways corresponding to the respective phases, whereby the components contained in the fluid to be processed in a dispersed phase are formed into microparticles having a desired diameter.
摘要:
The object of the present invention is to provide a method for producing a resin microparticle aqueous dispersion, which can produce monodisperse resin microparticles, does not cause clogging by a product, does not require a high pressure, and hasahighproductivity. Thus, provided is a method for producing a resin microparticle aqueous dispersion, wherein a fluid having at least one kind of resin dissolved in a solvent with which a resin is soluble and compatible and a fluid of an aqueous solvent join together in a thin film fluid formed between processing surfaces arranged opposite so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby resin microparticles are obtained in the thin film fluid by way of separation/emulsification.