Fluoro-hydrocarbon-based operating fluid composition for refrigerators

摘要

A fluorohydrocarbon-based operating fluid for refrigerators with alkyl-benzene, mineral oil and/or poly- alpha -olefin as lubricant contains polyorganosiloxane, organic phosphate and/or organic phosphite as additive(s). An operating material for refrigerators contains: (A) refrigerant(s) consisting of one or more fluorohydrocarbons; (B) lubricant(s) comprising (B1) alkylbenzene(s) with 1-20C linear or branched alkyl groups, (B2) mineral oil(s) and/or (B3) poly- alpha -olefin(s); and (C) additive(s) comprising (C1) polyorganosiloxane(s) with 1-30C organic groups, in amounts of 0.1-250 mg per 1 kg component (B) and/or (C2) organic phosphate(s) of formula (I) and/or (C3) organic phosphite(s) of formula (II), in amounts of 0.01-10 wt.% (C2) and/or (C3) based on the total weight of (B). R<1>-R<3> = 1-20C alkyl, aryl and/or aralkyl.