| 摘要 |
Oligoester having a kinematic viscosity of 50-50000 mm<2>/s at 40 degrees C is prepd. from an 8-20C tricyclic diol, a 4-20C satd. linear or branched dicarboxylic acids, and a 1-30C aliphatic alcohol. Pref. the tricyclic diol is a dihydroxymethyl (5,2,1,0<26>) tricyclodecane. The dicarboxylic acid contains 6-18C atoms. The aliphatic alcohol contains 2-20C atoms. The mol. ratio of diacid to tricyclic diol is 1-0.5:0.3-1. |
