Fluorine-containing aromatic compound

摘要

Disclosed is a fluorine-containing aromatic compound represented by the formula: <CHEM> wherein: each of R<1> and R<2> independently represents a hydrogen atom or a C1-C19 alkyl group, wherein the total number of carbon atoms in R<1> and R<2> is from 4 to 19; and each Rf is an unsubstituted or partially substituted C1-C25 fluorocarbon group in which the ratio of fluorine atom or atoms to carbon atom or atoms is from 0.6 to 3. The compound of the present invention has various excellent properties, such as very high miscibility with hydrocarbons and low bioaccumulation (or low bioconcentration), so that is can be advantageously used not only as lubricant oils for refrigeration equipment using HFC refrigerants or an additive in a refrigerant system using in combination an HFC refrigerant and a hydrocarbon lubricant, but also as lubricants for general purpose, or additives or modifiers for various types of oily substances and polymeric materials.