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    • 5. 发明申请
    • ADHESIVE SHEET AND METHOD FOR PRODUCING THE SAME
    • 粘合片及其制造方法
    • WO1998018878A1
    • 1998-05-07
    • PCT/US1997018285
    • 1997-10-13
    • MINNESOTA MINING AND MANUFACTURING COMPANYKANNO, MamoruABE, Hidetoshi
    • MINNESOTA MINING AND MANUFACTURING COMPANY
    • C09J07/02
    • C09J7/22C09J7/38C09J2201/28C09J2201/36
    • An adhesive sheet is disclosed including a flexible substrate (4), and an adhesive layer (20) formed on at least one of the main surfaces of the flexible substrate and containing elastic microspheres (3), in which the adhesive layer has a) an elastic microsphere layer which is in contact with the main surface of the flexible substrate, comprising elastic microspheres (3) and a tacky polymer (2) and has projections containing said elastic microspheres on a surface which is not in contact with said substrate, and b) a layer of tacky polymer (1) which covers the projections containing the elastic microspheres so that raised portions are formed on an adhesion surface (11). Bubbles of air can then escape during application and use because the adhesion surface has a contact area percentage in the range between 20 and 90 %. A method of making the adhesive sheet is also disclosed.
    • 公开了一种粘合片,其包括柔性基底(4)和形成在柔性基底的至少一个主表面上并且包含弹性微球(3)的粘合剂层(20),其中粘合剂层具有a) 与柔性基材的主表面接触的弹性微球层包括弹性微球(3)和粘性聚合物(2),并且在与所述基材不接触的表面上具有包含所述弹性微球的突起,b )一层粘合聚合物(1),其覆盖包含弹性微球的突起,使得凸起部分形成在粘合表面(11)上。 因此,在使用和使用过程中,空气气泡可以逸出,因为粘合面的接触面积百分比在20%到90%的范围内。 还公开了制造粘合片的方法。