Patent ID: 6998065
Filing Date: 2006-02-14
Classification: C09K,C10M,C10N

Abstract:
1. A fluid composition for use in refrigerators, which consists of a chlorine-free fluorocarbon refrigerant and a refrigerator oil, and said refrigerator oil consists of as a base oil: a pentaerythritol ester of formula (1) wherein R 0.1–5% by weight based on the total amount of said refrigerator oil of at least one epoxy compound selected from the group consisting of phenylglycidyl ether epoxy compounds, alkylphenylglycidyl ether epoxy compounds, glycidyl ester epoxy compounds, and epoxidized fatty acid monoesters; and said base oil has a kinematic viscosity of 2 to 150 cSt at 100° C.