| 摘要 |
PROBLEM TO BE SOLVED: To provide a bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride usable as a polyimide molded article (film) even when using the bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride as a raw material for a polyimide resin.SOLUTION: The bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride has a ratio of a specific stereoisomer in the bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride in a specific range. |
