Refrigeration working fluid composite
There are disclosed refrigeration working fluid compositions comprising tetrafluoroethane refrigerants and certain polyol esters of C7-C10 branched alkanoic acids or mixtures of such branched acids with linear C7-C10 monoalkanoic acids. The polyols are mono-, di- or technical grade pentaerythritol o...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
23.06.1993
|
Edition | 5 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | There are disclosed refrigeration working fluid compositions comprising tetrafluoroethane refrigerants and certain polyol esters of C7-C10 branched alkanoic acids or mixtures of such branched acids with linear C7-C10 monoalkanoic acids. The polyols are mono-, di- or technical grade pentaerythritol or trimethylolpropane; the esters exhibit suitable viscosity ranges and miscibility with refrigerants over a broad compositional range. The acids have a defined average effective carbon chain length and a certain degree of methyl branching for polyols other than trimethylolpropane. |
---|---|
Bibliography: | Application Number: CN19921014126 |