摘要 |
<p>This invention relates to a novel polyimide and describes method of its preparation, adhesives of the polyimide and the method for their application. The polyimide has recurring units of the formula <IMAGE> (where R is a tetra-valent radical selected from the group consisting of aliphatic radical having not less than two carbons, cyclo-aliphatic radical, monoaromatic radical, condensed polyaromatic radical, and non condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function). The polyimide can be prepared by reacting 2,6-bis(3-aminophenoxy)pyridine with tetracarboxylic dianhydride in an organic solvent and imidizing resultant polyamic acid. Various tetracarboxylic dianhydrides can be used and particularly prefered are pyromellitic dianhydride and 3,3',4,4'-benzophenonetetracarboxylic dianhydride.</p> |
申请人 |
MITSUI TOATSU CHEMICALS, INC., TOKIO/TOKYO |
发明人 |
OIKAWA, HIDEAKI, YOKOHAMA-SHI KANAGAWA-KEN;OHTA, MASAHIRO, YOKOHAMA-SHI KANAGAWA-KEN;KAWASIMA, SABURO, YOKOSUKA-SHI KANAGAWA-KEN;TAMAI, SHOJI, YOKOHAMA-SHI KANAGAWA-KEN;SONOBE, YOSHIHO, KANAGAWA-KEN;YAMAGUCHI, AKIHIRO, KANAGAWA-KEN |