To obtain a double glazing for automobile which is improved in sound insulation performance when a double glazing is used as a window member for automobile.SOLUTION: A double glazing for automobile has a first glass plate having a curve surface, a second glass plate having a curve surface, and a hollow layer, in which a gas fills between the first glass plate and the second glass plate. In the double glazing for automobile, a sum total of thicknesses of the first glass plate, the second glass plate and the hollow layer is 8 mm or less. The hollow layer is a layer having a thickness of 2 to 6 mm which is filled with a gas lighter than air. When the double glazing for automobile is used as an automobile door, an air sound insulation performance thereof, which is defined in the annex 1 of JIS A1419-1 meets Dr-30 class.SELECTED DRAWING: Figure 1

    【課題】本発明は、自動車用窓部材として複層ガラスを用いた際に、遮音性能が向上した自動車用複層ガラスを得ることを目的とした。【解決手段】曲面を有する第1ガラス板、曲面を有する第2ガラス板、及び該第1ガラス板と該第2ガラス板との間に気体が充填された中空層、を有する自動車用複層ガラスにおいて、該自動車用複層ガラスは、該第1ガラス、該第2ガラス、及び該中空層の厚みの合計が8mm以下であり、該中空層は、空気よりも軽い気体が充填された、厚み2〜6mmの層であり、該自動車用複層ガラスは、自動車用ドアとした際に、JIS A1419−1の附属書1に規定された空気音遮断性能が、Dr−30等級に合格するものであることを特徴とする自動車用複層ガラス。【選択図】図1


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    Title :

    DOUBLE GLAZING FOR AUTOMOBILE


    Additional title:

    自動車用複層ガラス


    Contributors:

    Publication date :

    2020-01-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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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