Abstract: A composition containing a fluorine-containing polymer having a curable functional group and a pentamethylene diisocyanate-based curing agent. Also disclosed is a coating film obtained from the composition; a laminate including a substrate and a layer obtained from the composition; a back sheet for a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet; and a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet, and a sealant layer formed above the coating film.

Abstract: A modified polymer including (a) a main chain containing a fluorine-containing polymer and (b) a side chain represented by the following formula (b1?) and/or a side chain represented by the following formula (b2?). The formula (b1?) is —CH2—CRb1(—X)—C(?O)—Y—Z—Rf, wherein X is a hydrogen atom, a methyl group, or a halogen atom; Y is —O— or —NH—; Z is a direct bond or a divalent organic group; Rf is a C1-C20 fluoroalkyl group; and Rb1 is a hydrogen atom or a monovalent organic group. The formula (b2?) is —CH2—CRb2(—R1)—C(?O)—O—Si(—CH3)2—[O—Si(—CH3)2]n—O—Si(—CH3)2—R2, wherein R1 is a hydrogen atom or a methyl group; R2 is a hydrogen atom or a methyl group; Rb2 is a hydrogen atom or a monovalent organic group; and n is 3 to 200.

Abstract: A chemical agent including a fluorine-containing polyaluminum chloride, wherein the chemical agent has 4,500 to 100,000 ppm by mass of fluorine per part by mass of aluminum. Also disclosed is a method for producing a fluorine-containing polyaluminum chloride.

Abstract: A method for producing a polytetrafluoroethylene composition including mixing a polytetrafluoroethylene resin and a filler using an airflow mixer to provide a polytetrafluoroethylene composition containing the polytetrafluoroethylene resin and the filler. The airflow mixer is a pulse-type airflow mixer or an airflow stirrer. Also disclosed is a polytetrafluoroethylene composition produced by the production method, a polytetrafluoroethylene composition having specific physical properties, as well as a molded article, electrically conductive tube, thermally conductive film, and substrate for CCL each obtained from the polytetrafluoroethylene composition.

Abstract: A composition containing a fluorine-containing polymer having a curable functional group and a pentamethylene diisocyanate-based curing agent. Also disclosed is a coating film obtained from the composition; a laminate including a substrate and a layer obtained from the composition; a back sheet for a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet; and a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet, and a sealant layer formed above the coating film.