| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite polyester composition which can exhibit excellent lubrication performance and has excellent dispersibility in a base oil.SOLUTION: Provided is a composite polyester composition containing a polyester, which is obtained by condensing two or more polyhydric alcohols, a polybasic carboxylic acid, and a monohydric alcohol. At least one of the two or more polyhydric alcohols is a polyhydric alcohol containing three or more hydroxyl groups. |
