To provide an interlayer for glass laminate capable of effectively enhancing acoustic insulation at 6300 Hz while effectively suppressing reduction of acoustic insulation at 3150 Hz in a glass laminate.SOLUTION: The interlayer for glass laminate has a resin layer having one layer structure or two or more layer structure and containing a resin and a plasticizer, in which when the glass laminate is obtained by arranging the interlayer with width of 25 mm, length of 300 mm and thickness of 2 mm between two glass sheets, resonance frequency X is 550 Hz or more and 740 Hz or less, loss coefficient Y at the secondary mode of 0.35 and the formula:Y>0.0008X-0.142, in a measurement of resonance frequency as a secondary mode in a damping test of the glass laminate by a central vibration method of the glass laminate.SELECTED DRAWING: Figure 1
【課題】合わせガラスにおいて、3150Hzでの遮音性の低下を効果的に抑えつつ、6300Hzでの遮音性を効果的に高めることができる合わせガラス用中間膜を提供する。【解決手段】本発明に係る合わせガラス用中間膜は、1層の構造又は2層以上の構造を有し、樹脂と可塑剤とを含む樹脂層を備え、前記中間膜を幅25mm、長さ300mm及び厚さ2mmのガラス板2枚の間に配置して合わせガラスを得たときに、該合わせガラスの中央加振法による合わせガラスのダンピング試験にて2次モードでの共振周波数の測定において、共振周波数Xが550Hz以上740Hz以下であり、かつ2次モードでの損失係数Yが0.35以上であり、かつ式:Y>0.0008X−0.142を満たす。【選択図】図1
INTERLAYER FOR GLASS LAMINATE, AND GLASS LAMINATE
合わせガラス用中間膜及び合わせガラス
2019-11-07
Patent
Elektronische Ressource
Japanisch
IPC: | C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / 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 |
INTERLAYER FOR GLASS LAMINATE, GLASS LAMINATE AND GLASS LAMINATE SYSTEM
Europäisches Patentamt | 2017
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