SHEET COMPRISING RUBBER-CONTAINING GRAFT POLYMER-POWDER, AND SOLAR CELL OR LAMINATED GLASS USING THE SHEET

An object of the present invention is to provide a rubber-containing graft polymer powder which uses 1,3-butadiene and by which an encapsulant for a solar cell and an interlayer film for laminated glass that are excellent in corrosion resistance, impact resistance, transparency, weather resistance,...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUNAGA Yosuke, YASUDA Hirotaka, MUGURUMA Shinichi, KIURA Masaaki, KASAI Toshihiro, ISOUE Koichiro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SEMICONDUCTOR DEVICES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide a rubber-containing graft polymer powder which uses 1,3-butadiene and by which an encapsulant for a solar cell and an interlayer film for laminated glass that are excellent in corrosion resistance, impact resistance, transparency, weather resistance, heat resistance and economic efficiency can be achieved. Provided is a rubber-containing graft polymer powder for polyvinyl acetal for an encapsulant for a solar cell or an interlayer film for laminated glass, in which an amount of an acidic component eluted by a hot water test is 0.10 KOHmg/g or less. It is preferable that the rubber-containing graft polymer powder be obtained by conducting the graft polymerization of a vinyl monomer in the presence of a rubbery polymer obtained by polymerizing a monomer (x) containing a conjugated diene (x1) and an acrylic acid alkyl ester (x2) having an alkyl group having from 2 to 8 carbon atoms and coagulating this.