FILM, AND LAMINATE

• Main Author: NONAKA YUKI
• Format: Patent
• Language: English; Japanese
• Published: 10.11.2022
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; TRANSPORTING

To provide a film provided with barrier property and conductivity, having excellent strength and excellent elongation, and a laminate using the same.SOLUTION: A film comprising a film layer and a coating layer formed on the film layer and having an uneven shape that is repeated along a predetermined direction, wherein the coating layer includes a first convex ridge line and a first concave ridge line and the film layer includes a second convex ridge line corresponding to the first concave ridge line and a second concave ridge line corresponding to the first convex ridge line, and a thickness of the film is 500 μm or less, an interval H between the first convex ridge line and the first concave ridge line is greater than an interval T between the first concave ridge line and the second convex ridge line, and with the elastic modulus obtained for the film layer alone being as reference data, when the elastic modulus of the coating layer having the uneven shape and the elastic modulus of the coating layer having no uneven shape are obtained by dynamic viscoelasticity measurement, the elastic modulus of the coating layer along the predetermined direction is smaller than the elastic modulus of the material of the coating layer that does not have the uneven shape.SELECTED DRAWING: Figure 1 【課題】バリア性や導通性を備え、優れた強度を持ち伸度が良好であるフィルム、及びこれを用いた積層体を提供する。【解決手段】フィルム層と、前記フィルム層上に形成された被膜層とからなり、所定の方向に沿って繰り返される凹凸形状を有するフィルムであって、前記被膜層は、第１凸状稜線と、第１凹状稜線を有し、前記フィルム層は、前記第１凹状稜線に対応する第２凸状稜線と、前記第１凸状稜線に対応する第２凹状稜線を有し、前記フィルムの厚みが５００μｍ以下であり、前記第１凸状稜線と前記第１凹状稜線との間隔Ｈは、前記第１凹状稜線と前記第２凸状稜線との間隔Ｔよりも大きく、前記フィルム層単体で求めた弾性率をリファレンスデータとして、動的粘弾性測定により、前記凹凸形状を有する前記被膜層の弾性率と、前記凹凸形状を有しない前記被膜層の弾性率を求めたとき、前記所定の方向に沿った前記被膜層の弾性率は、前記凹凸形状を有しない前記被膜層の素材の弾性率よりも、小さい。【選択図】図１