Patent ID: 6207071
Filing Date: 2001-03-27
Classification: C10M,C10N

Abstract:
A fluid composition for use in a refrigerating machine which comprises:(I) an HFC refrigerant containing at least one of HFC-134a and HFC-125; and(II) 1 to 500 parts by weight of a refrigerating machine oil comprising an alkylbenzene oil containing at least 60% by weight of alkylbenzenes having a molecular weight of 200 to 350 and having kinematic viscosity of from 3 to less than 72.6 mm.sup.2 /s at a temperature of 40.degree. C. per 100 pats by weight of the HFC refrigerant as a base oil and 0.005 to 5.0% by weight, based on the total amount of the oil composition, of at least one kind of phosphorus compound selected from the group consisting of phosphoric esters, acid phosphoric esters, amine salts of acid phosphoric esters, chlorinated phosphoric esters and phosphorous esters.