CUSHIONING MATERIAL

To provide a cushioning material which has low cost, capable of being recycled, excellent in grip property of a product, and suitably used for transportation of large sized components or heavy weighted article such as an automobile component.SOLUTION: There is provided a cushioning material using a non-crosslinked polyolefin resin extrusion foam body satisfying a) expansion ratio of 5 to 30 times, b) average cell diameter of 100 to 600 μm, c) isolated cell rate of 70% or more, and d) thickness of 20 mm or more. There is provided a cushioning material having kinetic friction coefficient of the non-crosslinked polyolefin resin extrusion foam body of 0.310 or more.SELECTED DRAWING: None 【課題】低コストかつリサイクル可能で製品のグリップ性に優れ、自動車部品などの大型部品や重量品の運搬に好適に用いられる緩衝材。【解決手段】ａ）発泡倍率が５〜３０倍、ｂ）平均気泡径が１００〜６００μｍ、ｃ）独立気泡率が７０％以上、および、ｄ）厚みが２０ｍｍ以上の条件を満たす、無架橋ポリオレフィン系樹脂押出発泡体を使用した緩衝材。前記無架橋ポリオレフィン系樹脂押出発泡体の動摩擦係数が０．３１０以上である緩衝材。【選択図】なし