| abstract |
One aspect of the present invention relates to an aqueous composition comprising at least one selected from the group consisting of a carboxylic acid compound represented by the following formula (1), a carboxylic acid anhydride represented by the following formula (2), and trimellitic anhydride ; basic compounds; and water. In formula (1), R represents an alkanediyl group having 2 to 4 carbon atoms, a vinylene group or a benzene ring, and a represents 2 or 3. In formula (2), R represents an alkanediyl group having 2 to 4 carbon atoms, a vinylene group, or a benzene ring. |