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1. (WO2017170259) INTERMEDIATE FILM FOR LAMINATED GLASS

Pub. No.:    WO/2017/170259    International Application No.:    PCT/JP2017/012118
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Sat Mar 25 00:59:59 CET 2017
IPC: C03C 27/12
B60J 1/00
C08J 5/18
Applicants: KURARAY CO., LTD.
株式会社クラレ
Inventors: ASANUMA, Yoshiaki
浅沼 芳聡
KUSUDOU, Takeshi
楠藤 健
Title: INTERMEDIATE FILM FOR LAMINATED GLASS
Abstract:
To provide an intermediate film for laminated glass exhibiting superior sound insulating ability, wherein sound insulating capability is improved not only in the coincidence region, but also in the mass-dominated region. Provided is an intermediate film for laminated glass, the film having a sound insulation layer comprising a composition (A) containing at least one type of resin (a1) selected from a thermoplastic resin and a thermosetting resin, wherein the tan delta, obtained when the dynamic elasticity of a 0.8 mm-thick molded sheet of the composition (A) is measured in tensile mode at a frequency of 0.3 Hz, has a maximum value at a temperature of TA (°C), the temperature TA (°C) being in the range of –50 to 50°C, and the tan delta at TA (°C) being at least 2.5.