| 摘要 |
<p>PURPOSE:A novel heat-resistant adhesive having bond strength, keeping high bond strength especially even at high temperature, comprising a polyamic acid and/or polyimide having a specific repeating unit. CONSTITUTION:The aimed adhesive comprising a polyamic acid and/or polyimide having a repeating unit shown by the formula I[X is carbonyl or sulfonyl; Y is group shown by the formula II or formula II(R is >=2C aliphatic, cyclic alihpatic, monocyclic aromatic, condensed polycylic aromatic or noncondensed polycyclic aromatic wherein aromatic group is directly bonded or aromatic groups are bonded each other through crosslinked members)].</p> |
