Abstract: A welding film includes a phenoxy resin, in which a z average molecular weight of the phenoxy resin is 70,000 or more, and a ratio [Mz/Mn] between the z average molecular weight and a number average molecular weight of the phenoxy resin is 5.0 or more.

Abstract: A structure repairing method applied to concrete structures ensures a short construction period and high reliability in a wide temperature range. The method includes a first repairing layer forming step of applying a radical-polymerizable resin composition (A) to a structure to form a first repairing layer, a second repairing layer forming step of applying a repairing material (X) containing a radical-polymerizable resin composition (Ax) and a filler (B) to the first repairing layer before the first repairing layer is cured, thereby forming a second repairing layer, and a repairing layer curing step of curing the radical-polymerizable resin composition (A) and the radical-polymerizable resin composition (Ax), wherein (A) and (Ax) each contain a radical-polymerizable resin (a1), a radical-polymerizable unsaturated monomer (a2), a hydroxy group-containing aromatic tertiary amine (a3), and an organic peroxide (a4), and (a1) and (a2) in each of (A) and (Ax) total 75% by mass or more.

Abstract: A radical-polymerizable resin composition comprising one or more metal-containing compounds (A) selected from a metal soap (A1) and a ?-diketone skeleton-containing metal complex (A2); one or more thiol compounds (B) selected from a secondary thiol compound (B1) and a tertiary thiol compound (B2); and a radical-polymerizable compound (C) can stably cure under a dry condition, in water and in seawater and further on a wet substrate. The radical-polymerizable resin composition is useful as a repairing material for inorganic structure, a radical-polymerizable coating composition, a concrete spall preventing curable material, a reinforcing fiber-containing composite material, etc.

Abstract: A radical-polymerizable resin composition comprising one or more metal-containing compounds (A) selected from a metal soap (A1) and a ?-diketone skeleton-containing metal complex (A2); one or more thiol compounds (B) selected from a secondary thiol compound (B1) and a tertiary thiol compound (B2); and a radical-polymerizable compound (C) can stably cure under a dry condition, in water and in seawater and further on a wet substrate. The radical-polymerizable resin composition is useful as a repairing material for inorganic structure, a radical-polymerizable coating composition, a concrete spall preventing curable material, a reinforcing fiber-containing composite material, etc.

Abstract: Provided is a low-temperature-curable cross-section repair material which can be cured in a short period of time, even in extremely low temperature environments of ?25° C., and which exhibits excellent workability and strength development. Also provided is a cross-section repairing method using the same. The low-temperature-curable cross-section repair material is characterized by: comprising 100 parts by of a radical polymerizable resin composition (A), 0.1-10 parts by of a hydroxyl group-containing aromatic tertiary amine (C-1), 0.1-10 parts by of an organic peroxide (D), and 1.0-500 parts by of an inorganic filler (E); and the radical polymerizable resin composition (A) comprising at least one type of radical polymerizable resin (A-1) selected from the group consisting of vinyl ester resins, urethane (meth)acrylate resins and polyester (meth)acrylate resins, and a radical polymerizable unsaturated monomer (A-2) having at least two or more (meth)acryloyl groups per molecule thereof.

Abstract: Provided is a fiber reinforced plastic molding material which provides a cured product with excellent impact resistance, corrosion resistance and transparency. The fiber reinforced plastic molding material includes: a radical polymerizable resin composition containing: a vinyl ester resin (A) having a weight average molecular weight of 500 to 6,000; a urethane (meth)acrylate resin (B) obtained by reacting an isocyanate compound having two or more isocyanate groups in one molecule, a (meth)acrylic compound having one or more hydroxyl groups in one molecule and polyethylene glycol; an aliphatic amine (C) represented by the following general formula: where R1 represents a hydroxyalkyl group, R2 represents an alkyl group or a hydroxyalkyl group, and R3 represents H or CH3; a metal soap of cobalt (D); and an organic peroxide (E); and a glass fiber reinforcing material (F).

Abstract: The problem to be solved by the present invention is to provide an anticorrosive coating composition which has more alcohol resistance than conventional vinyl ester resins including glass flakes, and is economically effective. In order to solve the above problem, an anticorrosive coating composition including (A) an unsaturated polyester resin composition including (i) an unsaturated polyester obtained from a dibasic acid component and a polyalcohol component and (ii) a polymerizable unsaturated monomer; and (B) a scale-like glass, wherein the dibasic acid includes 70 to 100 mol % of an unsaturated dibasic acid and 0 to 30 mol % of a saturated dibasic acid, and the polyalcohol component includes 50 to 100 mol % of a glycol having a carbon atom number of 1 to 3 in the main chain and a side chain number of 0 or 1, is provided.

Abstract: Provided is a fiber reinforced plastic molding material which provides a cured product with excellent impact resistance, corrosion resistance and transparency. The fiber reinforced plastic molding material includes: a radical polymerizable resin composition containing: a vinyl ester resin (A) having a weight average molecular weight of 500 to 6,000; a urethane (meth)acrylate resin (B) obtained by reacting an isocyanate compound having two or more isocyanate groups in one molecule, a (meth)acrylic compound having one or more hydroxyl groups in one molecule and polyethylene glycol; an aliphatic amine (C) represented by the following general formula: where R1 represents a hydroxyalkyl group, R2 represents an alkyl group or a hydroxyalkyl group, and R3 represents H or CH3; a metal soap of cobalt (D); and an organic peroxide (E); and a glass fiber reinforcing material (F).