FOAM SHEET AND ELECTRONIC APPARATUS

To provide a foam sheet which suppresses occurrence of wrinkles at the time of bending while having excellent impact absorption property in a wide temperature zone.SOLUTION: There is provided a foam sheet. The foam sheet includes a foam layer formed of a silicone foam, wherein when a void ratio (%)...

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1. Verfasser: KIKUCHI ATSUNORI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a foam sheet which suppresses occurrence of wrinkles at the time of bending while having excellent impact absorption property in a wide temperature zone.SOLUTION: There is provided a foam sheet. The foam sheet includes a foam layer formed of a silicone foam, wherein when a void ratio (%) of each layer when the foam layer is equally divided into 10 layers in a vertical direction is represented by ti (i is order of each layer counted from surface layer), S calculated by expression of S=t5-(t1+t10)/2 is 10% or more.SELECTED DRAWING: Figure 1 【課題】幅広い温度帯で優れた衝撃吸収性を有しつつ、湾曲時にシワが発生することが抑制された発泡シートを提供する。【解決手段】本発明のある態様は、発泡シートである。当該発泡シートは、シリコーンフォームにより形成された発泡層を備え、前記発泡層を垂直方向に均等に10層に分割したときの各層の空隙率(%)をti(iは表層からカウントした各層の順番)としたとき、S=t5-(t1+t10)/2なる式で算出されるSが10%以上である。【選択図】図1