Patent ID: 7959824
Filing Date: 2011-06-14
Classification: C10M,C10N

Abstract:
1. A refrigerating machine oil composition, consisting of: a base oil consisting of at least one type base oil selected from the group consisting of mineral oils, hydrocarbon-based oils, aromatic esters, esters of C5-C10 linear aliphatic dibasic acids, complex esters, carbonic acid esters, polyvinyl ethers, ketones, polyphenyl ethers, silicones, polysiloxanes, and perfluoroethers wherein a kinematic viscosity of the base oil ranges from 12 mm a phosphorothionate selected from tricresyl phosphorothionate, triphenyl phosphorothionate, and tri(n-octyl) phosphorothionate; a phosphorus-based extreme pressure agent other than said phosphorothionate selected from tricresyl phosphate, triphenyl phosphate, and tri(n-octyl) phosphate; and an oil agent selected from butyl stearate, diisobutyl adipate, diisodecyl adipate, glycerin monooleate, glycerin trioleate, oleyl alcohol, and glyceryl ether, and optionally a benzotriazole and/or its derivative, an epoxy compound, a phenol-based antioxidant, an amine-based antioxidant, an anti-abrasion agent, a chlorinated paraffin, a sulfur-based extreme pressure agent, an antifoaming agent, a visocisty index improver, a pour point depressant, and a detergent dispersant.