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    • 4. 发明授权
    • Double-sided pressure-sensitive adhesive tape, laminated structure
comprising the same, and method of use of same
    • 双面粘合带,包含该双面粘合带的层叠结构体及其使用方法
    • US5372865A
    • 1994-12-13
    • US927666
    • 1992-09-09
    • Masaaki ArakawaNaomitu TanakaTeiji Sakashita
    • Masaaki ArakawaNaomitu TanakaTeiji Sakashita
    • A61F13/58C09J7/02
    • A61F13/58C09J7/02Y10T428/1462Y10T428/24215Y10T428/24793Y10T428/2809Y10T428/2826Y10T428/2848Y10T428/2852Y10T428/2857Y10T428/31663
    • In the double-side pressure-sensitive tapes (A and B) of the first embodiment of the present invention, a first pressure-sensitive adhesive layer (2) comprising a blend of 100 parts by weight of an acrylic or rubber-based pressure-sensitive adhesive composition with from 0.01 to 30 parts by weight of a silicone polymer is formed on one side of a substrate and an acrylic or rubber-based pressure-sensitive adhesive layer is formed as a second pressure-sensitive adhesive layer (3) on the other side. By this, a double-side pressure-sensitive tape in which the pressure-sensitive adhesives, even when being bonded to each other, can thereafter be easily separated is obtained. For the pressure-sensitive tape of the second embodiment of the present invention, a second pressure-sensitive adhesive layer (54) is formed on one inner surface (53a) of both inner surfaces of a tape substrate (53) which are faced to each other and a first pressure-sensitive adhesive layer (55) is formed on the other inner surface (53b), with the second pressure-sensitive adhesive layer and the first pressure-sensitive adhesive layer being formed from pressure-sensitive adhesives having compositions different from each other so as to be separably bonded to each other, and a third pressure-sensitive adhesive layer (56) is formed on a suitable part of the tape substrate (53) other than the both faced surfaces. By this, it becomes possible to improve fixing strength without increasing the area of the tape substrate.
    • PCT No.PCT / JP92 / 00010 Sec。 371日期:1992年9月9日 102(e)1992年9月9日PCT PCT 1992年1月9日PCT公布。 出版物WO92 / 日本1992年7月23日。在本发明第一实施方案的双面压敏胶带(A和B)中,第一压敏粘合剂层(2)包含100重量份的 丙烯酸或橡胶类压敏粘合剂组合物在基材的一侧上形成有0.01至30重量份的硅氧烷聚合物,并且形成丙烯酸或橡胶基压敏粘合剂层作为第二压敏粘合剂 另一侧的粘合剂层(3)。 由此,获得即使在彼此粘合时也可以容易地分离粘合剂的双面压敏胶带。 对于本发明第二实施例的压敏胶带,在带基板(53)的两个内表面的一个内表面(53a)上形成第二粘合剂层(54) 另一个和第一压敏粘合剂层(55)形成在另一个内表面(53b)上,第二压敏粘合剂层和第一压敏粘合剂层由具有不同于 彼此分离地接合,并且在除了两个表面之外的带基材(53)的适当部分上形成第三粘合剂层(56)。 由此,可以提高固定强度而不增加带基片的面积。