Abstract: A control device acquires quality information indicating a correspondence relationship between a position and communication quality related to wireless communication at the position, and route information indicating a movement route of a mobile base station, specifies an area in which the communication quality is determined to be lower than a predetermined communication quality based on the quality information, and executes control for moving the mobile base station to a position at which a wireless communication service can be provided in at least a part of the area in a case where the position is included in the movement route based on the route information.

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover, if necessary, the precipitated layered double hydroxide can be recovered to separate the fluorine compound or its salt between layers. Therefore, the burden to environment or the ecosystem by the fluorine compound can be reduced.

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover, if necessary, the precipitated layered double hydroxide can be recovered to separate the fluorine compound or its salt between layers. Therefore, the burden to environment or the ecosystem by the fluorine compound can be reduced.

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover, if necessary, the precipitated layered double hydroxide can be recovered to separate the fluorine compound or its salt between layers. Therefore, the burden to environment or the ecosystem by the fluorine compound can be reduced.

Abstract: The present invention relates to a coating for water blocking agents to fill empty joint spaces on continuous walls comprising a composition consisting essentially of a water-absorbing resin (a), a hydrophilic binder resin (b) and a solvent (c), wherein said hydrophilic binder resin (b) has an acid value of 40 mg KOH/g to 500 mg KOH/g. The present invention also relates to a water blocking construction method using the coating for water blocking agents.

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluorine suspended in the solution is also coagulated to precipitate. By these processes, the fluorine compound is fixed with high rate to separate from the solution with the polymer containing fluorine, and recovered if necessary. By this treatment process, the fluorine compound and the polymer containing fluorine, contained in the wastewater etc. can be separated easily, and the burden to environment or ecosystem can be reduced.

Abstract: The present invention has its object to provide a friction reducing coating for engineering works, and, a soil adhesion-preventing sheet pile or steel tubular pipe wherein the above-mentioned friction reducing coating for engineering works applied thereto in advance, and, a soil adhesion-preventing construction method which comprises using the above-mentioned friction reducing coating for engineering works and/or the above-mentioned soil adhesion-preventing sheet pile or steel tubular pipe and further provide a negative friction cut construction method for foundation structures which comprises using the above friction reducing coating for engineering works and thus can cut the friction between a foundation structure after laying underground and the surrounding ground and reduce the influences of changes in the surrounding ground on the foundation structure as well as a caisson or pipe jacking construction method which comprises using the above friction reducing coating for engineering works and can reduce the

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluorine suspended in the solution is also coagulated to precipitate. By these processes, the fluorine compound is fixed with high rate to separate from the solution with the polymer containing fluorine, and recovered if necessary. By this treatment process, the fluorine compound and the polymer containing fluorine, contained in the wastewater etc. can be separated easily, and the burden to environment or ecosystem can be reduced.

Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover, if necessary, the precipitated layered double hydroxide can be recovered to separate the fluorine compound or its salt between layers. Therefore, the burden to environment or the ecosystem by the fluorine compound can be reduced.

Abstract: The present invention has its object to provide a friction reducing coating for engineering works, and, a soil adhesion-preventing sheet pile or steel tubular pipe wherein the above-mentioned friction reducing coating for engineering works applied thereto in advance, and, a soil adhesion-preventing construction method which comprises using the above-mentioned friction reducing coating for engineering works and/or the above-mentioned soil adhesion-preventing sheet pile or steel tubular pipe and further provide a negative friction cut construction method for foundation structures which comprises using the above friction reducing coating for engineering works and thus can cut the friction between a foundation structure after laying underground and the surrounding ground and reduce the influences of changes in the surrounding ground on the foundation structure as well as a caisson or pipe jacking construction method which comprises using the above friction reducing coating for engineering works and can reduce the

Abstract: The present invention has its object to provide a coating for water blocking agents which is {circle over (1)} easy to apply to the substrate (e.g. joint sections of sheet pile), in particular {circle over (2)} less peelable from the substrates (joint sections of sheet pile) in the step of driving them into the ground, {circle over (3)} high in swelling capacity (for even thin films to be high in water blocking performance) and {circle over (4)} readily removable from the substrate (e.g. joint sections of sheet pile) after use.

Abstract: Disclosed herein are crosslinked spherical fine particles having good toughness, elastic properties, and chemical properties, and a process for producing the same, said fine particles being obtained by radical polymerization in the suspended state of a component [M] capable of radical polymerization containing a vinyl group-containing compound (V) capable of radical polymerization which is obtained by reaction of (a) a selected polyol, (b) an isocyanate group-containing compound, and (c) an active hydrogen-containing vinyl monomer capable of radical polymerization. Also disclosed herein are the secondary products of the crosslinked spherical fine particles, which include a coating composition and its derivatives (such as filmlike article, sheetlike article, adhesive filmlike article, and adhesive sheetlike article) and a peelable pressure-sensitive adhesive and peelable pressure-sensitive adhesive article.

Abstract: This invention provides a production process by which a polymer having a hydroxyl group at both terminals can be easily obtained with a cheap price and good efficiency from a wide field of vinyl-based monomers including polar ones. In this process, a polymerization reaction of a vinyl-based monomer (a) is performed by using hydrogen peroxide (b) and, on this occasion, either one or both of a hydrogen peroxide-decomposing accelerator (c) and an amphiphilic compound (d) are further used and any component other than the (a), (b), (c) and (d) is not substantially used.

Abstract: This invention provides a process by which a polymer having a hydroxyl group at both terminals can be easily obtained with a cheap price and good efficiency from a wide field of vinyl-based monomers including polar ones. The process is arranged in such a manner that the polymerization of a vinyl-based monomer (a) is performed in the presence of an alcohol (b) having no addition-polymerization reactivity by using an initiator (c) consisting essentially of a peroxide and, on this occasion, at least one of catalysts (d) selected from a group consisting of an organic sulfonic acid compound having no addition-polymerization reactivity and an inorganic acid is further used and a reactor does not substantially contain any component other than the (a), (b), (c) and (d).

Abstract: There are provided a process for obtaining a polymer having hydroxyl groups at both terminals easily and with cheap cost and excellent efficiency from a wide variety of vinyl-based compounds, a composition containing said polymer and its use, and a polymer derived from said composition and its use.The polymerization reaction of a vinyl-based monomer (b) is carried out by using a radical polymerization initiator (c) in the presence of a compound (a) represented by the general formula:HO--A--(S).sub.x --B--OH (I)and, a polymer having hydroxyl groups at both terminals is obtained under conditions that, in the above reaction, any compound other than (a), (b) and (c) is not practically used and the compound (a) always exists in 50 mole times or more of the initiator (c) in the course of reaction in a reactor; and either a composition containing this polymer or a polymer derived from this composition is used.

Abstract: The present invention yields a coating film excellent in adhesion, water resistance, solvent resistance and durability. A compound having a carboxyl group and a long-chain alkylthio group or a salt thereof is used as an emulsifier and emulsion polymerization is carried out using a polymerizable monomer or monomers having, within their molecule, a group reactive with a carboxyl group as raw materials for emulsion polymerization, whereby the resin produced by emulsion polymerization and the emulsifier react with each other efficiently on the occasion of film formation and form a crosslinked structure. When a compound having a polymerizable unsaturated group in addition to the carboxyl group and long-chain alkylthio group or a salt thereof is used as the emulsifier, not only the above-mentioned crosslinked structure is formed but also the polymerizable unsaturated group in the emulsifier will react with the unsaturated group in the polymerizable monomer or monomers in the manner of grafting.

Abstract: A compound having a carboxy group and a long-chain alkylthio group and/or a salt thereof is used as an emulsifier and, on the other hand, emulsion polymerization is carried out using a polymerizable monomer or monomers having, within their molecule, a group reactive with a carboxyl group as raw materials for emulsion polymerization, whereby the resin produced by emulsion polymerization and the emulsifier react with each other efficiently on the occasion of film formation and form a crosslinked structure. When a compound having a polymerizable unsaturated group in addition to the carboxyl group and long-chain alkylthio group and/or a salt thereof is used as the emulsifier, not only the above-mentioned crosslinked structure is formed but also the polymerizable unsaturated group in the emulsifier will react with the unsaturated group in the polymerizable monomer or monomers in the manner of grafting. As a result, the compatibility between the emulsifier and the emulsion-polymerized resin is improved.