| abstract |
A novel complex alcohol ester composition useful as a lubricant is provided. At least two molecules of the general formula I: R (OH) n (wherein R is an n-valent aliphatic, alicyclic or aromatic ring group and one or more carbon atoms not adjacent to each other in R) Is substituted with an oxygen atom, and n is an integer of 2 or more), and at least two ester bonds are linked via at least one molecule of a polybasic acid, and the polyol is linked. At least part of the end of the side chain of the non-polyol, via a polybasic acid, general formula II: (AO) k R 2 (R 2 represents a hydrocarbon group, A represents a divalent linking group, k Represents an integer.) Is a complex alcohol ester composition containing a polyester having a group represented by: [Selection figure] None |