The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material,whereinthe polyvinyl acetal resin film has a thickness of 10 to 350 µm,one surface has a 10-point average roughness Rz value of less than 2 µm and a friction angle of larger than 31° but 40° or smaller,the other surface has a 10-point average roughness Rz value of 2 µm to 7 µm and a friction angle of 20° to 31°,a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20°C and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa·s, andthe amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.
POLYVINYL ACETAL RESIN FILM, AND LAMINATE INCLUDING SAME
POLYVINYLACETALHARZFILM UND LAMINAT DAMIT
FILM DE RÉSINE D'ACÉTAL POLYVINYLIQUE ET STRATIFIÉ COMPRENANT CELUI-CI
2022-07-06
Patent
Electronic Resource
English
IPC: | C08J Verarbeitung , WORKING-UP / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS |
POLYVINYL ACETAL RESIN FILM, AND LAMINATE INCLUDING SAME
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