COMPOSITE ELEMENT AND USE THEREOF

摘要

The present invention relates to a lightweight composite panel which comprises at least one mineral glass or glass-ceramic panel and at least one organic layer A.The weight per unit area of the lightweight composite panel is in the range from 0.5 kg/m2 to 5.5 kg/m2, the ratio of the total thickness of the one or more mineral glass or glass-ceramic panels to the total thickness of all of the organic layers is from 1:0.01 to 1:1 and the total thickness of all of the organic layers is less than or equal to 350 µm. the lightweight composite panel complies with the thermal safety requirements of the air travel authorities and its "Total Heat Release" measured in accordance with JAR/FAR/CS 25, App. F, Part IV & AITM 2.0006 is less than 65 kW x min./ m2 and its afterflame time after removal of the flame in the "Vertical Bunsen Burner Test" measured in accordance with FAR/JAR/CS 25, App. F, Part I & AITM 2.0002A is less than 15 sec. The invention further relates to a lightweight window pane, more particularly an inner pane of an aircraft window, and to a smoke barrier element.