| abstract |
(57) Abstract: A formula -CO-CH 2 -CH in the molecule (CH 3) a plasticizer comprising a polyester having a dicarboxylic acid unit represented by -CH 2 -CO-. [Effect] It has excellent plasticization efficiency and low-temperature flexibility, and has sufficient durability, and as a plasticizer for synthetic resins, especially vinyl chloride resins, vinylidene chloride resins, halogen-containing resins such as chlorinated polyolefins. It is useful. |