PROBLEM TO BE SOLVED: To provide a dew condensation suppression member, which can provide excellent visibility and is restrained from whitening and peeling when used adhered to another article.SOLUTION: The dew condensation suppression member comprises a transparent substrate, a fine concavo-convex layer comprising a cured material of a resin composition disposed on one surface of the transparent substrate, and an adhesive layer disposed on another surface of the transparent substrate. Moisture vapor permeability of the transparent substrate is 35 g/m24h or less. The fine concavo-convex layer has on its surface a fine concavo-convex shape provided with a group of micro-protrusions formed by a plurality of micro protrusions disposed closely spaced, and has a relationship, d(average of distance d between neighboring protrusions of the micro protrusions)≤Λ(shortest wavelength of wavelength band of light which is to be prevented from reflection). A static contact angle of pure water on a surface of the fine concavo-convex layer is 30° or less, and a static contact angle of pure water on a surface of the adhesive layer is 85° or more and 100° or less.SELECTED DRAWING: Figure 1
【課題】優れた視認性を付与することができ、別の物品に貼り付けて用いた際の白化及び剥がれが抑制された結露抑制部材を提供する。【解決手段】透明基材と、前記透明基材の一方の面に設けられた樹脂組成物の硬化物からなる微細凹凸層と、前記透明基材の他方の面に設けられた粘着層とを有し、前記透明基材の透湿度が35g/m2・24h以下であり、前記微細凹凸層は、複数の微小突起が密接して配置されてなる微小突起群を備えた微細凹凸形状を表面に有し、dAVG(微小突起の隣接突起間隔dの平均値)≦Λmin(反射防止を図る光の波長帯域の最短波長)なる関係を有し、前記微細凹凸層の表面における純水の静的接触角が30?以下であり、前記粘着層の表面における純水の静的接触角が85?以上100?以下であることを特徴とする、結露抑制部材。【選択図】図1
DEW CONDENSATION SUPPRESSION MEMBER
結露抑制部材
2016-02-01
Patent
Electronic Resource
Japanese
IPC: | C09J ADHESIVES , Klebstoffe / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
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