Abstract: A method of selectively and efficiently adsorbing an anion such as a phosphate ion which adversely affect the environment when discharged without any treatment, or an anion which can be used beneficially when recovered, from waste water or a solution including such ion using an adsorbent. A method of adsorbing an anion of interest from an aqueous solution (A) containing the anion of interest and the other anion using an anion adsorbent, including performing at least (1) a step of contacting the aqueous solution (A) having a pH of 5.8 or less with the anion adsorbent to allow the anions to be adsorbed to the anion adsorbent, and then (2) a step of contacting water or an aqueous solution (B) having a pH of 5.2 to 11 with the anion adsorbent to desorb at least a part of the other anion adsorbed to the anion adsorbent from the anion adsorbent.

Abstract: A method of selectively and efficiently adsorbing an anion such as a phosphate ion which adversely affect the environment when discharged without any treatment, or an anion which can be used beneficially when recovered, from waste water or a solution including such ion using an adsorbent. A method of adsorbing an anion of interest from an aqueous solution (A) containing the anion of interest and the other anion using an anion adsorbent, including performing at least (1) a step of contacting the aqueous solution (A) having a pH of 5.8 or less with the anion adsorbent to allow the anions to be adsorbed to the anion adsorbent, and then (2) a step of contacting water or an aqueous solution (B) having a pH of 5.2 to 11 with the anion adsorbent to desorb at least a part of the other anion adsorbed to the anion adsorbent from the anion adsorbent.

Abstract: Adsorbent particle includes iron oxyhydroxide as a main component, wherein 90% or more of volume of particle is constituted of a granular crystal having a crystal grain size of 20 nm or less or a columnar crystal having a width of 10 nm or less and length of 30 nm or less and particle has BET specific surface area of 250 m2/g or more. Above adsorbent particle is produced by a method including a step of generating iron oxyhydroxide by adding base represented by YOH (wherein Y represents a monovalent atom or atomic group) to solution including at least one selected from trivalent iron compounds represented by FeX3 (wherein X represents a monovalent atom or atomic group other than OH) while adjusting pH to pH 3 to 6, wherein solution has total concentration of FeX3, YOH and other electrolytes of 10% by mass or more at completion of the step.

Abstract: It is an object of the present invention to provide a nanodispersion liquid of iron oxyhydroxide that is stable and does not contain components derived from auxiliary components. The nanodispersion liquid of iron oxyhydroxide according to the present invention is a nanodispersion liquid in which particles comprising iron oxyhydroxide as a main component and having an average particle diameter d50 of 0.2 ?m or less and a d90 of 1 ?m or less are dispersed in a solvent. The iron oxyhydroxide is preferably ?-iron oxyhydroxide. The nanodispersion liquid of iron oxyhydroxide according to the present invention preferably contains no other components than a substance derived from at least either of an iron compound and a base, a pH adjusting agent, and a solvent.

Abstract: Adsorbent particle includes iron oxyhydroxide as a main component, wherein 90% or more of volume of particle is constituted of a granular crystal having a crystal grain size of 20 nm or less or a columnar crystal having a width of 10 nm or less and length of 30 nm or less and particle has BET specific surface area of 250 m2/g or more. Above adsorbent particle is produced by a method including a step of generating iron oxyhydroxide by adding base represented by YOH (wherein Y represents a monovalent atom or atomic group) to solution including at least one selected from trivalent iron compounds represented by FeX3 (wherein X represents a monovalent atom or atomic group other than OH) while adjusting pH to pH 3 to 6, wherein solution has total concentration of FeX3, YOH and other electrolytes of 10% by mass or more at completion of the step.

Abstract: It is an object of the present invention to provide a nanodispersion liquid of iron oxyhydroxide that is stable and does not contain components derived from auxiliary components. The nanodispersion liquid of iron oxyhydroxide according to the present invention is a nanodispersion liquid in which particles comprising iron oxyhydroxide as a main component and having an average particle diameter d50 of 0.2 ?m or less and a d90 of 1 ?m or less are dispersed in a solvent. The iron oxyhydroxide is preferably ?-iron oxyhydroxide. The nanodispersion liquid of iron oxyhydroxide according to the present invention preferably contains no other components than a substance derived from at least either of an iron compound and a base, a pH adjusting agent, and a solvent.

Abstract: The object of the present invention is to provide a molding sheet for forming a hard coat layer having an excellent shelf life or tracking ability to the mold in a semi-cured state, and having an excellent abrasion resistance after being cured completely, a molded body having a hard coat layer, and a method for manufacturing the same. The present invention relates to a molding sheet for forming a hard coat layer, comprising a layer consisted of a semi-cured material of a composition comprising: a) an organosilicon compound, b) a ultraviolet ray curable-compound, and c) a silanol condensation catalyst on the substrate, and to a molded body using the same.

Abstract: An organic thin film forming method for forming an organic thin film on a substrate surface comprising: contacting the substrate with a solution for forming an organic thin film obtained from an auxiliary agent for forming an organic thin film obtained by mixing a metal surfactant (1) having at least one hydrolytic group and a compound capable of interacting with the metal surfactant (1), and a metal surfactant (2) having at least one hydrolytic group, in an organic solvent, wherein a solution for forming an organic thin film is used in which the moisture content has been adjusted or maintained to be within a predetermined range; and, an auxiliary agent for forming an organic thin film and a solution for forming an organic thin film used in this method.

Abstract: A method for producing an organic thin film, which enables rapid film formation, and enables a dense organic thin film with minimal impurities to be formed stably, and in a plurality of consecutive repetitions. Also, a method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolysable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water contact within the organic solvent solution is either set or maintained within a predetermined range.

Abstract: A method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including a step (A) of bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolysable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water contact within the organic solvent solution is either set or maintained within a predetermined range.

Abstract: Dispersoids having metal-oxygen groups that are suitable for the production of metal oxide thin-films at a low temperature of 200° C. or below and for the production of homogeneous organic-inorganic hybrid materials. The dispersoid having metal-oxygen bonds may be obtained by mixing a metal compound having at least three hydrolyzable groups with at least 0.5 mole but less than 2 moles of water per mole of the metal compound in an organic solvent, in the absence of an acid, a base, and/or a dispersion stabilizer, and at a temperature at or below the temperature at which the metal compound begins to hydrolyze, then raising the temperature to at least the temperature at which hydrolysis begins.

Abstract: Dispersoids having metal-oxygen groups that are suitable for the production of metal oxide thin-films at a low temperature of 200° C. or below and for the production of homogeneous organic-inorganic hybrid materials. The dispersoid having metal-oxygen bonds may be obtained by mixing a metal compound having at least three hydrolyzable groups with at least 0.5 mole but less than 2 moles of water per mole of the metal compound in an organic solvent, in the absence of an acid, a base, and/or a dispersion stabilizer, and at a temperature at or below the temperature at which the metal compound begins to hydrolyze, then raising the temperature to at least the temperature at which hydrolysis begins.

Abstract: The invention provides dispersoids having metal-oxygen groups which are suitable for the production of metal oxide thin-films at a low temperature of 200° C. or below and for the production of homogeneous organic-inorganic hybrid materials. The invention also provides metal oxide thin-films and organic-inorganic hybrid materials endowed with various capabilities, particularly organic-inorganic hybrid materials having a high refractive index and high transparency. Use is made of a dispersoid having metal-oxygen bonds which is obtained by mixing a metal compound having at least three hydrolyzable groups with at least 0.5 mole but less than 2 moles of water per mole of the metal compound in an organic solvent, in the absence of an acid, a base and/or a dispersion stabilizer, and at a temperature at or below the temperature at which the metal compound begins to hydrolyze, then raising the temperature to at least the temperature at which hydrolysis begins.

Abstract: A method for producing an organic thin film, which enables rapid film formation, and enables a dense organic thin film with minimal impurities to be formed stably, and in a plurality of consecutive repetitions. Also, a method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolysable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water contact within the organic solvent solution is either set or maintained within a predetermined range.

Abstract: An object of the present invention is to provide a method for producing an organic thin film, which enables rapid film formation, and enables a dense organic thin film with minimal impurities to be formed stably, and in a plurality of consecutive repetitions. The present invention provides a method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including a step (A) of bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolysable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water contact within the organic solvent solution is either set or maintained within a predetermined range.

Abstract: An object of the present invention is to provide a method for producing an organic thin film, which enables rapid film formation, and enables a dense organic thin film with minimal impurities to be formed stably, and in a plurality of consecutive repetitions. The present invention provides a method for producing an organic thin film in which an organic thin film is formed on the surface of a substrate, including a step (A) of bringing the substrate into contact with an organic solvent solution containing a metal-based surfactant having at least one hydrolyzable group, and a catalyst capable of interacting with the metal-based surfactant, wherein the water content within the organic solvent solution is either set or maintained within a predetermined range.

Abstract: The object of the present invention is to provide a molding sheet for forming a hard coat layer having an excellent shelf life or tracking ability to the mold in a semi-cured state, and having an excellent abrasion resistance after being cured completely, a molded body having a hard coat layer, and a method for manufacturing the same.

Abstract: A dispersed ingredient having metal-oxygen bonds which is obtained by hydrolyzing a metal alkoxide in an organic solvent in the absence of an acid, a base, and/or a dispersion stabilizer, either with 0.5 to less than 1 mol of water per mol of the metal alkoxide or at ?20° C. or lower with 1.0 to less than 2.0 mol of water per mol of the metal alkoxide. In the organic solvent, the dispersed ingredient is stably dispersed without aggregating. Use of the dispersed ingredient enables a thin metal oxide film and a homogeneous organic/inorganic composite to be produced at a temperature as low as 200° C. or below.

Abstract: An organic/inorganic composite including a condensation product of an organic silicon compound represented by formula (I) as a major component; at least one kind of a photosensitive compound which is sensitive to light having a wavelength of 350 nm or less selected from the group consisting of metal chelate compounds, compounds of metal organic acid salts, metal compounds having 2 or more hydroxyl or hydrolyzable groups, hydrolyzates thereof, and condensation products thereof; and/or a compound derived from the photosensitive compound; RnSiX4-n??(I) wherein R represents an organic group in which carbon directly bonds to Si represented in the formula and X represents a hydroxyl or hydrolyzable group; n represents 1 or 2; R may be the same or different when n is 2; and X may be the same or different when (4-n) is 2 or more.

Abstract: Disclosed is an organic-inorganic composite body having a very high hardness on the surface and an adequate hardness in the interior and on the back surface while having excellent adhesion to a substrate.