The present invention relates to a polyvinyl acetal resin film comprising a polyvinyl acetal resin material, the polyvinyl acetal resin film having a thickness of 10-350 [mu] m, a ten-point average roughness Rz value of less than 2 [mu] m on one surface, and a friction angle of more than 31 DEG and 40 DEG or less on the surface. One surface of the polyvinyl acetal resin material has a 10-point average roughness Rz value of 2 [mu] m or more and 7 [mu] m or less, the other surface has a 10-point average roughness Rz value of 2 [mu] m or more and 7 [mu] m or less, the friction angle of the surface is 20 degrees or more and 31 degrees or less, and the viscosity of a 10 mass% toluene/ethanol = 1/1 (mass ratio) solution of the polyvinyl acetal resin in the polyvinyl acetal resin material, as measured using a Brookfield type (B type) viscometer at 20 DEG C and 30 rpm, is 100-1000 mPa*s. The amount of the plasticizer in the polyvinyl acetal resin film is 0-20% by mass based on the total mass of the polyvinyl acetal resin film.

    本发明涉及一种聚乙烯醇缩醛树脂薄膜,其由聚乙烯醇缩醛树脂材料构成,所述聚乙烯醇缩醛树脂薄膜的厚度为10~350μm,一个面的十点平均粗糙度Rz值低于2μm,该表面的摩擦角大于31°且为40°以下,且另一个面的十点平均粗糙度Rz值为2μm以上且7μm以下,该表面的摩擦角为20°以上且31°以下,前述聚乙烯醇缩醛树脂材料中的聚乙烯醇缩醛树脂的、使用Brookfield型(B型)粘度计以20℃、30rpm测得的、浓度10质量%的甲苯/乙醇=1/1(质量比)溶液的粘度为100~1000mPa·s,聚乙烯醇缩醛树脂薄膜中的增塑剂的量基于聚乙烯醇缩醛树脂薄膜的总质量为0~20质量%。


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    Title :

    POLYVINYL ACETAL RESIN FILM, AND LAMINATE INCLUDING SAME


    Additional title:

    聚乙烯醇缩醛树脂薄膜和包含其的层叠体


    Contributors:

    Publication date :

    2021-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



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