LUBRICATING OIL COMPOSITIONS FOR REFRIGERATOR USING R-134A

摘要

The producing method of the cooling lubricant for home refrigerators using R-134a (1,1,1,2-tetrafluoroethane) as a substitute refrigerant is characterized by reacting an adipic acid with a neopentyl glycol to obtain a dineopentyl glycol adipate, reacting the dineopentyl glycol adipate with a carprylic acid to obtain a mixed product of a neopentyl glycol carprylate of formula (I) [R=C7) and a di(neopentyl glycol monocarprylate) adipate of formula (II) [R=C7 as the cooling lubricant. The mixed product has 10˜35 cst dynamic viscosity at 40 ≦̸C.