Lubricant oil for refrigerators

Abstract

A lubricant oil for refrigerators, industrial gears, automotive engines, automotive gear oil, fibers and as a rolling lubricant oil, comprising a glycol ether carbonate represented by the general formula [I] <IMAGE> [I] wherein R1 and R2 are each independently an aliphatic group, an alicyclic group, an aromatic group and an aromatic-substituted aliphatic group each having not greater than 20 carbon atoms. R3 and R4 are each independently an ethylene group or an isopropylene group, and m and n are each independently an integer of 2 to 100, and optionally containing ozone layer-nondestructive Freon such as Freon R-134a.

What is claimed: 
     
       1. A lubricant oil for refrigerators, comprising (1) an ozone layer nondestructive hydrofluorocarbon (2) a sufficient amount to provide lubrication for said hydrofluorocarbon of a glycol ether carbonate represented by the general formula [I] ##STR6## wherein R 1  and R 2  are each independently an aliphatic group, an alicyclic group, an aromatic group and an aromatic-substituted aliphatic group each having not greater than 20 carbon atoms, R 3  and R 4  are each independently an ethylene group or an isopropylene group, and m and n are each independently an integer of 2 to 100, and (3) residual ingredient which is at least any one of the group consisting of mineral oil and α-olefin oligomer. .Iadd. 
     
     
       2.  A lubricant oil for refrigerators, comprising (1) an ozone layer nondestructive hydrofluorocarbon and (2) a sufficient amount to provide lubrication for said hydrofluorocarbon of a glycol ether carbonate represented by the general formula [I] ##STR7## wherein R 1  and R 2  are each independently an aliphatic group, an alicyclic group, an aromatic group and an aromatic-substituted aliphatic group each having not greater than 20 carbon atoms, R 3  and R 1  are each independently an ethylene group or an isopropylene group, and m and n are each independently an integer of 2 to 100. .Iaddend.