Abstract: Provided are a two-component curable coating agent capable of forming a surface protective layer having excellent weather resistance, acid resistance, fouling resistance, and elongation properties, and a multilayer film including a surface protective layer that is a cured film of the two-component curable coating agent. The two-component curable coating agent of the present invention includes: a main agent that contains a polyol containing an acrylic polyol having an alicyclic structure and a hydroxyl value of 36 mgKOH/g or more and 125 mgKOH/g or less, and an alkyl polyol; and a curing agent that contains a polyisocyanate. The multilayer film of the present invention includes: a substrate layer; and a surface protective layer that is integrally layered on a first surface of the substrate layer and is a cured film of the two-component curable coating agent.

Abstract: The present invention provides a brazing material application method that can stably discharge a brazing material containing a fluoride-based flux over a long period of time. The brazing material application method of the present invention includes: a supply step of supplying a liquid brazing material containing a fluoride-based flux to a liquid chamber of a discharge apparatus that is configured to have the liquid chamber having a discharge channel, a plunger disposed in the liquid chamber movably forward and backward, and a drive device for moving the plunger forward and backward and to satisfy a predetermined relationship; and an application step of discharging the brazing material in the liquid chamber from the discharge channel by moving the plunger toward the discharge channel of the liquid chamber by the drive device, and applying the brazing material to a metal member.

Abstract: A bonding method is capable of realizing high bonding strength and connection reliability even at a connection part in a high temperature area by means of simple operation low temperature bonding. The method includes a first step wherein, on at least one of the bonded surfaces of two materials to be bonded having a smooth surface, a thin film of noble metal with a volume diffusion coefficient greater than that of the base metal of the material to be bonded is formed using an atomic layer deposition method at a vacuum of 1.0 Pa or higher, a second step wherein a laminate is formed by overlapping the two materials to be bonded so that the bonded surfaces of the two materials are connected through the thin film, and a third step wherein the two materials to be bonded are bonded by holding the laminate at a predetermined temperature.

Abstract: The present invention provides a brazing material application method that can stably discharge a brazing material containing a fluoride-based flux over a long period of time. The brazing material application method of the present invention includes: a supply step of supplying a liquid brazing material containing a fluoride-based flux to a liquid chamber of a discharge apparatus that is configured to have the liquid chamber having a discharge channel, a plunger disposed in the liquid chamber movably forward and backward, and a drive device for moving the plunger forward and backward and to satisfy a predetermined relationship; and an application step of discharging the brazing material in the liquid chamber from the discharge channel by moving the plunger toward the discharge channel of the liquid chamber by the drive device, and applying the brazing material to a metal member.

Abstract: A bonding method is capable of realizing high bonding strength and connection reliability even at a connection part in a high temperature area by means of simple operation low temperature bonding. The method includes a first step wherein, on at least one of the bonded surfaces of two materials to be bonded having a smooth surface, a thin film of noble metal with a volume diffusion coefficient greater than that of the base metal of the material to be bonded is formed using an atomic layer deposition method at a vacuum of 1.0 Pa or higher, a second step wherein a laminate is formed by overlapping the two materials to be bonded so that the bonded surfaces of the two materials are connected through the thin film, and a third step wherein the two materials to be bonded are bonded by holding the laminate at a predetermined temperature.

Abstract: A metal paste for low temperature bonding at temperatures 600° C. or lower, the metal paste comprising: a metal particle with an average particle size of 1 to 100 ?m; a metal nanoparticle with an average particle size of 1 to 500 nm; a stress relieving material; and a dispersion medium to disperse the metal particle, metal nanoparticle, and the stress relieving material.

Abstract: An inorganic particle dispersion having high spinnability comprises an inorganic powder, hydrophilic fumed silica, and a resin having a hydroxyl group.

Abstract: A multilayer film includes a substrate layer; a surface protective layer integrally laminated on a first surface of the substrate layer, the surface protective layer containing a polyurethane which is a reaction product of a polyol (P) having a hydroxyl value of 25 to 380 mgKOH/g and a content of fluorine atoms of 0.01 to 20% by mass and a polyisocyanate (I); and an adhesive layer integrally laminated on a second surface of the substrate layer. Also described is a two-liquid curable coating agent for forming the surface protective layer.

Abstract: An inorganic particle dispersion having high spinnability is provided. The inorganic particle dispersion according to one embodiment includes an inorganic powder, hydrophilic fumed silica, and a resin having a hydroxyl group.

Abstract: Disclosed is a pitch control agent including a (meth)acrylamide-based amphoteric polymer. The (meth)acrylamide-based amphoteric polymer contains 50 mol % or more of (meth)acrylamide, 0.5 to 20 mol % of a diallyldialkylammonium salt; and 0.1 to 14 mol % of an anionic monomer, as copolymerizable monomer components. This pitch control agent is less likely to be affected by a change in a surrounding environment, and therefore can exhibit excellent pitch controllability under various environments in paper production process.

Abstract: Provided is an electro-conductive paste suitable to yield a sintered metal fine particulate layer having excellent adhesion to an ITO substrate. Powdery silver oxide is dispersed in a non-polar solvent. An excess amount of formic acid is added to allow the formic acid to react with the powdery silver oxide to thereby convert the powdery silver oxide into powdery silver formate (HCOOAg). A primary amine is allowed to react with the powdery silver formate to provide a primary amine addition salt of the silver formate, and the primary amine addition salt of the silver formate is subjected to a decompositional reduction reaction at a liquid temperature of around 70° C. to generate silver nanoparticles having a coating layer including the primary amine. To the resulting silver nanoparticle dispersion liquid, more than 0 parts by mass and 2.0 parts by mass or less of a titanium compound or manganese compound is added per 100 parts by mass of silver.

Abstract: A soldering flux of the present invention contains, as a base resin, an acrylic resin (A) having an acid value of 0 to 70, and an acrylic resin (B) having an acid value of 30 to 230. The acrylic resin (A) is obtained by polymerization of a monomer mixture containing alkyl (meth)acrylate having an alkyl group having carbon atoms of 12 to 23. The acrylic resin (B) is obtained by polymerization of a monomer mixture containing alkyl (meth)acrylate having an alkyl group having carbon atoms of 6 to 10. The acid value of the acrylic resin (B) is higher than the acid value of the acrylic resin (A), and a difference between these two resins is 15 or more.

Abstract: The purpose of the present invention is to provide a tackifier which is superior in adhesiveness under high temperature (heat-resistant holding power) and rough surface adhesiveness to conventional tackifiers produced using rosin acids having a tricyclic skeletal structure. This tackifier is a reaction product of a rosin (A) with an alcohol (B), the rosin (A) containing a rosin acid (a) having a bicyclic skeletal structure. Preferably, the bicyclic skeletal structure is a labdane skeletal structure.

Abstract: A soldering flux of the present invention contains, as a base resin, an acrylic resin (A) having an acid value of 0 to 70, and an acrylic resin (B) having an acid value of 30 to 230. The acrylic resin (A) is obtained by polymerization of a monomer mixture containing alkyl(meth)acrylate having an alkyl group having carbon atoms of 12 to 23. The acrylic resin (B) is obtained by polymerization of a monomer mixture containing alkyl(meth)acrylate having an alkyl group having carbon atoms of 6 to 10. The acid value of the acrylic resin (B) is higher than the acid value of the acrylic resin (A), and a difference between these two resins is 15 or more.

Abstract: Disclosed is a pitch control agent including a (meth)acrylamide-based amphoteric polymer. The (meth)acrylamide-based amphoteric polymer contains 50 mol % or more of (meth)acrylamide, 0.5 to 20 mol % of a diallyldialkylammonium salt; and 0.1 to 14 mol % of an anionic monomer, as copolymerizable monomer components. This pitch control agent is less likely to be affected by a change in a surrounding environment, and therefore can exhibit excellent pitch controllability under various environments in paper production process.

Abstract: Provided is a composition for brazing containing a flux, a Zn metal powder, a (meth) acrylic resin, and an organic solvent, in which the organic solvent contains (A1) a monohydric alcohol having 1 to 5 carbon atoms; (A2) a monohydric alcohol having 6 to 8 carbon atoms; and (A3) a polyhydric alcohol having 3 or less carbon atoms that are bonded by a carbon-carbon bond.

Abstract: The present invention relates to a method for producing a cationic surface sizing agent, and contains a first step of obtaining a copolymer (A) by solution-polymerizing a monomer mixture which contains a monomer having a tertiary amino group (a) in the amount of 15 to 45% by weight, a (meth)acrylic acid ester (b) in the amount of 15 to 85% by weight, and styrenes (c) in the amount of 0 to 70% by weight in the presence of a chain transfer agent; a second step of obtaining a copolymer (B) by polymerizing the copolymer (A) and a nonionic hydrophilic monomer (d); a third step of obtaining a copolymer (C) by polymerizing the copolymer (B) and a hydrophobic monomer (e) in the absence of a surfactant; and a fourth step of obtaining a quaternary ammonium salt of the copolymer (C) by quaternizing a tertiary amino group present in the copolymer (C).

Abstract: The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent.

Abstract: A soldering flux of the present invention contains, as a base resin, an acrylic resin (A) having an acid value of 0 to 70, and an acrylic resin (B) having an acid value of 30 to 230. The acrylic resin (A) is obtained by polymerization of a monomer mixture containing alkyl(meth)acrylate having an alkyl group having carbon atoms of 12 to 23. The acrylic resin (B) is obtained by polymerization of a monomer mixture containing alkyl(meth)acrylate having an alkyl group having carbon atoms of 6 to 10. The acid value of the acrylic resin (B) is higher than the acid value of the acrylic resin (A), and a difference between these two resins is 15 or more.

Abstract: According to the present invention, a metal nanoparticle dispersion suitable to multiple layered coating by jetting in the form of fine droplets is prepared by dispersing metal nanoparticles having an average particle size of 1 to 100 nm in a dispersion solvent having a boiling point of 80° C. or higher in such a manner that the volume percentage of the dispersion solvent is selected in the range of 55 to 80% by volume and the fluid viscosity (20° C.) of the dispersion is chosen in the range of 2 mPa·s to 30 mPa·s, and then when the dispersion is discharged in the form of fine droplets by inkjet method or the like, the dispersion is concentrated by evaporation of the dispersion solvent in the droplets in the course of flight, coming to be a viscous dispersion which can be applicable to multi-layered coating.