| 摘要 |
<p>PURPOSE:To enable the control of the adhesion to an adherend and the enlargement of the gap between adherends, by providing a pressure-sensitive adhesive layer which cures upon being exposed to light to form a network structure on a light-permeable and extensible film substrate. CONSTITUTION:An adhesive film comprising a light-permeable and extensible film substrate and, provided thereon, a pressure-sensitive adhesive layer which cures upon being exposed to light to form a three-dimensional network structure. The adhesive layer includes a composition obtd. by blending a pressure-sensitive adhesive such as a rubber-based or acrylic adhesive with a low-molecular compd. having at least two photopolymerizable carbon-carbon double bonds in its molecule and a photopolymerization initiator. A preferable photopolymerizable compd. is a compd. having a molecular weight of 5,000 or less and having 2-6 photopolymerizable carbon-carbon double bonds in its molecule because of excellent three-dimensional network forming efficiency.</p> |
