| 摘要 |
A liquid composition is described which comprises: (A) a major amount of a fluorine containing hydrocarbon containing one or two carbon atoms, and (B) a minor amount of a soluble organic lubricant comprising at least one carboxylic ester compound characterized by the formulae: RO(R<1>O)nC(O)R<2> and R<3>OC(O)R<2>, wherein R is a hydrocarbyl group of at least 2 carbon atoms, R<1> is a hydrocarbylene group, R<2> is H, hydrocarbyl, -CF3, -R<4>CN, -R<4>-NO2 or R<5>OCH(R<6>)-, R<3> is a -R<4>CF3, -R<4>CN or -R<4>NO2 group, provided that R<3> may be a hydrocarbyl group when R<2> is -R<4>CN, n is an integer from 1 to about 50, R<4> is a hydrocarbylene group, R<5> is H, a lower hydrocarbyl group or R<7>C(O)- where R<7> is a hydrocarbyl group, and R<6> is H or a lower hydrocarbyl group. Liquid compositions are also described containing fluorine-containing hydrocarbons also containing other halogen such as chlorine. The liquid compositions are useful particularly as refrigeration liquids in refrigerators and air-conditioners including auto, home and industrial air-conditioners. |
