| abstract |
(57) [Abstract] [Purpose] To provide a metal surface treating agent excellent in rust prevention and adhesion of a metal surface and a polymer composition therefor. [Structure] A polymer obtained by polymerizing a compound having three carbonyl groups represented by the following general formula (2) and one or more double bonds. Embedded image [However, the compound also includes an enol type. Further, in the general formula (2), R 1 , R 2 , and R 4 are alkenyl groups having 2 to 10 carbon atoms and having a double bond at the terminal or 1 to 1 carbon atoms. An alkyl group of 0, and at least one of R 1 , R 2 and R 4 is an alkenyl group having a terminal double bond, x, y and z represent 0 or 1] |