| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a corner tape that recovers smoothness in a short time even when attached to a gypsum rough surface at a projected corner, facilitates adjustments of adhesion work to a gypsum board, and can shorten labor for putty finishing. <P>SOLUTION: In a corner tape, a first tape base material 5, second tape base materials 4 and 4', adhesive layers 3 and 3', and release layers 2 and 2' are laminated in this order. The second tape base materials 4 and 4' are arranged at approximately symmetric positions with respect to a virtual center line 6 of the tape base material 5. When a tensile elastic modulus of the second tape base material 4 is E, a sectional secondary moment per unit width is I<SB POS="POST">0</SB>, and an adhesive force of the adhesive layer 3 is F, such a corner tape that fulfills a relation of E×I<SB POS="POST">0</SB>>F×3.9×10<SP POS="POST">-7</SP>is provided. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
