LIGHT SHIELD FILM

PROBLEM TO BE SOLVED: To provide means of improving weatherability of a light shield film having a heat-ray reflective layer comprising a multilayer film and a heat-ray shield film containing a (composite) tungsten oxide.SOLUTION: A light shield film comprises a first resin layer and second resin la...

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1. Verfasser:	TAIMA YASUO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide means of improving weatherability of a light shield film having a heat-ray reflective layer comprising a multilayer film and a heat-ray shield film containing a (composite) tungsten oxide.SOLUTION: A light shield film comprises a first resin layer and second resin layer laminated on a heat-ray reflective layer in the described order. The heat-ray reflective layer includes at least one laminate comprising a high refractive index layer and low refractive index layer laminated together. The first resin layer contains at least one selected from a group of tungsten oxides and composite tungsten oxides, while the second resin layer contains a moisture absorbent.SELECTED DRAWING: None 【課題】多層膜からなる熱線反射層と（複合）タングステン酸化物を含有する熱線遮蔽膜とを有する光学遮蔽フィルムにおいて、耐候性を向上させる手段を提供することを目的とする。【解決手段】光学遮蔽フィルムは、熱線反射層上に、第１の樹脂層と、第２の樹脂層とがこの順で積層されてなる。熱線反射層は、高屈折率層および低屈折率層が積層された積層体を少なくとも１つ有する。第１の樹脂層は、タングステン酸化物および複合タングステン酸化物からなる群から選択される少なくとも１種を含み、第２の樹脂層は、吸湿剤を含むことを特徴とする。【選択図】なし