Abstract: An optical film includes a substrate film and an adhesion-facilitating layer arranged on at least one surface of the substrate film, in which the adhesion-facilitating layer contains a resin, silica particles, and metal oxide particles other than the silica particles; a ratio of a percentage A of an area derived from the metal oxide particles in a total area of a specific lower region to a percentage B of an area derived from the metal oxide particles in a total area of a specific upper region is 1.05 or more; and the surface of the adhesion-facilitating layer opposite to the substrate film side has an arithmetic mean roughness Ra of 10 nm or more and less than 20 nm.

Abstract: Provided are a microcapsule encapsulating a solvent, the solvent having a solubility parameter of greater than or equal to 8 (cal/cm3)1/2 and less than 10 (cal/cm3)1/2 and a molecular weight of from 425 to 3,000; and a method for producing the microcapsule.

Abstract: Provided are a coating composition including polymer particles having a number-average primary particle diameter of 30 nm to 200 nm, a siloxane resin which has a weight-average molecular weight of 600 to 6,000, is a siloxane resin including at least one unit selected from units (1), (2), and (3) described below, and has a total mass of the units (1), (2), and (3) being 95% by mass or more of a total mass of the siloxane resin, and a solvent and applications thereof. R1's each independently represent an alkyl group having 1 to 8 carbon atoms or an alkyl fluoride group having 1 to 8 carbon atoms, R2's each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and, in a case where both the units (1) and (2) are included, the alkyl groups having 1 to 8 carbon atoms represented by R1's or R2's may be identical to or different from each other.

Abstract: An antibacterial composition includes an antibacterial agent containing silver, a monomer containing a hydrophilic group, and a water-insoluble nitrogen-containing compound.

Abstract: Provided are: a solar cell rear surface protective sheet including a resin base material, a first colored layer which is disposed on one surface side of the resin base material, has an average transmittance of 20% or higher for infrared radiation with a wavelength of 750 nm to 2500 nm, and has a transmittance of 1% or lower for ultraviolet radiation with a wavelength of 325 nm, and a second colored layer which is disposed on the other surface side of the resin base material and of which each of an average transmittance and an average reflectivity for infrared radiation with a wavelength of 750 nm to 2500 nm is 10% or lower; and a solar cell module in which a first colored layer side of the solar cell rear surface protective sheet is disposed on the sealing material side sealing the solar cell element.

Abstract: Provided are a transparent sheet for a solar cell, a transparent back sheet for a solar cell, and a solar cell module. This transparent sheet for a solar cell includes: a substrate film; and a first polymer layer that is disposed on one surface of the substrate film and includes a polymer A having an ultraviolet absorbing partial structure and a binder polymer B, in which the polymer A having an ultraviolet absorbing partial structure and the binder polymer B have the same kind of structural unit.

Abstract: Provided are a solar cell rear surface protective sheet comprising: a base material film including a white polyester film and having a thickness of from 20 ?m to 500 ?m, a first resin layer having a modulus of tensile elasticity of 1.2 GPa or higher and 3.0 GPa or lower and a thickness of 1 ?m or greater, and a second resin layer having a lower modulus of tensile elasticity than the first resin layer, which are laminated in this order.