| 摘要 |
PURPOSE: To obtain a tack product hard to peel even if subjected to shear force or peel force, and also hard to repel from the mounted surface even in case the surface is curved. CONSTITUTION: This tack product has a substrate 1 having the following physical properties: storage modulus at -20 deg.C, <=5×10<9> dyne/cm<2> ; storage modulus at 80 deg.C, >=1.5×10<6> dyne/cm<2> ; glass transition temperature, -10 to 20 deg.C; tensile stress at 10% extension at 23 deg.C, 2.0-10.0kg/cm<2> ; tensile stress at 400% extension at 23 deg.C, 6.0-20.0kg/cm<2> ; tensile stress at 10% extension at 80 deg.C, 20-8.0kg/cm<2> ; and tensile stress at 400% extension at 80 deg.C, 3.0-10.0kg/cm<2> .
|
