| abstract |
1,216,988. Polyesters. CINCINNATI MILLING MACHINE CO. 11 Dec., 1967 [9 Dec., 1966], No. 66234/67. Heading C2C. [Also in Divisions B3, C3 and C5] An ester, suitable for use in lubricant compositions (see Division C5), is made by condensing (a) 1 mol. of a dimer of an unsaturated C 16-26 fatty acid, and (b) 0À66 to 1À5 mols. of a polyoxyalkylene glycol having a degree of polymerization of 4 to 200, and in which the alkylene group contains 2 to 4 carbon atoms. The condensation is continued until 50 to 90% of the theoretical water has been eliminated. |