| 摘要 |
PROBLEM TO BE SOLVED: To obtain a tacky adhesive composition having cutting workability capable of being worked into a fine shape and having a high adhesive strength with slight exudation and useful as a curable type tacky adhesive sheet, etc., by formulating a rubber-based polymer with a specific resin component and a photocationic polymerization initiator. SOLUTION: This composition is obtained by formulating (A) 100 pts.wt. of a rubber-based polymer with (B) 10-200 pts.wt. of a resin component having cationic polymerizable groups except the polymer and (C) an effective amount of a photocationic polymerization initiator. Furthermore, a block polymer, especially the one having functional groups reactive with the cationic polymerizable functional groups in the molecule is preferably used as the component A and, e.g. an acrylonitrile-butadiene rubber is preferably used. An alicyclic epoxy resin, etc., are preferably used as the component B and an aromatic diazonium salt, etc., are preferably used as the component C.
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