| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a composition-based on 2-cyanoacrylate excellent in surface curing property and clearance curing property effective for shortening the working time for adhesion useful as an instantaneous adhesive by making the composition include a specific Lewis acidic metal salt and a compound having clathrate formability. SOLUTION: This composition includes (A) the Lewis acidic metal salt comprising (i) a metal selected from among Zn, Cd, Hg, Al, Ga, In and Ti, (ii) a conjugate base comprising an acid including oxygen and the component i is bonded with the component ii through oxygen atom and (B) the compound having clathrate formability. The preferable component ii is (1) perchloric acid, (2) a (substituted) aliphatic carboxylic acid, (substituted) aromatic carboxylic acid, (substituted) aliphatic sulfonic acid or (substituted) aromatic sulfonic acid or the like and the preferable component B is polyalkylene oxides, crownethers, silacrownethers, calixarenes.</p> |
