Abstract: Provided is a compound capable of generating a Lewis acid in response to light unlike conventional photo acid generators. The compound comprises an anionic moiety having a central boron atom and a particular cationic moiety (for example, a cation having a HOMO-LUMO gap of 5.3 eV or less). The cationic moiety may, for example, have a skeleton selected from an N-substituted pyridinium skeleton, an N-substituted bipyridinium skeleton, an N-substituted quinolinium skeleton, and a pyrylium skeleton.

Abstract: The present invention provides a method of producing a tetracyanoborate-containing ionic compound in a milder condition more efficiently and less expensively than conventional methods, and a tetracyanoborate-containing ionic compound having a reduced content of impure components. An ionic compound of the present invention is represented by the following general formula (I), has a content of fluorine atom-containing impurities of 3 mol % or less per 100 mol % of the ionic compound, and a method for producing an ionic compound represented by the general formula (I) of the present invention comprises a step of reacting starting materials containing a cyanide and a boron compound. (In the formula, Ktm+ denotes an organic cation [Ktb]m+ or an inorganic cation [Ke]m+; and m denotes an integer of 1 to 3.

Abstract: The present invention provides a method of producing a tetracyanoborate-containing ionic compound in a milder condition more efficiently and less expensively than conventional methods, and a tetracyanoborate-containing ionic compound having a reduced content of impure components. An ionic compound of the present invention is represented by the following general formula (I), has a content of fluorine atom-containing impurities of 3 mol % or less per 100 mol % of the ionic compound, and a method for producing an ionic compound represented by the general formula (I) of the present invention comprises a step of reacting starting materials containing a cyanide and a boron compound. (In the formula, Ktm+ denotes an organic cation [Ktb]m+ or an inorganic cation [Ke]m+; and m denotes an integer of 1 to 3.

Abstract: An electrophoretic particle including: a pigment particle having an average particle diameter of 1 ?m or smaller; and a polymer layer having an average thickness of 1 to 500 nm formed on a surface of the pigment particle, wherein 50% or higher of an entire surface of the pigment particle is coated with the polymer layer. The electrophoretic particle can be produced by radical polymerization using a polymerization initiator in a state where a pigment particle and monomer components are present in a solvent. The electrophoretic particle can be used in a microcapsule and a sheet for electrophoretic display, as well as an electrophoretic display device and an electronic equipment.

Abstract: The present invention is directed to a near-infrared absorbing coat film comprising a near-infrared absorbing dye having a maximum absorption wavelength of 780 nm to 1200 nm, which has a residual near-infrared absorbing capacity of not less than 50% after 48 hours of light irradiation in an accelerated weathering test using a UV Auto Fade Meter.

Abstract: An electrophoretic particle including: a pigment particle having an average particle diameter of 1 ?m or smaller; and a polymer layer having an average thickness of 1 to 500 nm formed on a surface of the pigment particle, wherein 50% or higher of an entire surface of the pigment particle is coated with the polymer layer. The electrophoretic particle can be produced by radical polymerization using a polymerization initiator in a state where a pigment particle and monomer components are present in a solvent. The electrophoretic particle can be used in a microcapsule and a sheet for electrophoretic display, as well as an electrophoretic display device and an electronic equipment.

Abstract: The present invention is directed to a near-infrared absorbing coat film comprising a near-infrared absorbing dye having a maximum absorption wavelength of 780 nm to 1200 nm, which has a residual near-infrared absorbing capacity of not less than 50% after 48 hours of light irradiation in an accelerated weathering test using a UV Auto Fade Meter.

Abstract: To provide a laminated resinous article having an improved weatherability without inviting ultraviolet-induced coloring or deterioration in interlayer adhesion and in surface hardness, and having a high surface harness and a satisfactory abrasion resistance, a weather resistant ultraviolet absorptive laminated resinous article is disclosed. The resinous article includes a resin base, a base protective layer and a surface protective layer formed on at least one surface of the resin base, which base protective layer is composed of a cross-linked cured product. The base protective layer includes a polymer obtained by polymerizing a monomer component containing at least one selected from monomers having an ultraviolet absorptive group of the formula (1) or (2) in the description, and the surface protective layer is formed as an outermost layer of the resinous article.

Abstract: A polymer for imparting light resistance to fibers is prepared by radical polymerizing a monomer composition including a specific ultraviolet stabilizable monomer and/or ultraviolet absorptive monomer. A highly light resistant fiber includes the light resistance imparting polymer inside or on the surface of the fiber. The polymer can impart a satisfactory light resistance to fibers over a long time, and the fiber is highly resistant to light.