| 摘要 |
PURPOSE:To obtain a novel higher aliphatic triol which is useful as a starting substance for polyesters, polyurethanes, flexible crosslinking agents and other polymers. CONSTITUTION:A higher aliphatic triol having a chemical structure of an aliphatic hydrocarbon chain of at least 42 carbon atoms bearing three hydroxyl groups. This triol is obtained by oligomerizing a higher unsaturated fatty acid having at least 14 carbon atoms or a lower alkyl ester thereof, separating and recovering the trimers from the reaction mixture then reducing the trimers to convert the carboxyl or ester groups into -CH2OH. Otherwise, it is also obtained by oligomerizing a higher unsaturated aliphatic alcohol having at least 14 carbon atoms and separating and recovering the trimers. Further, the ester of the formula (R is an aliphatic hydrocarbon of at least 42 carbon atoms; R<4>-R<6> are H, residue of unsaturated carboxylic acid, respectively)is also novel. |
