REFRIGERATION LUBRICANTS

Compression refrigeration equipment using tetrafluoroethane as a working fluid employs polyoxyalkylene glycols which are at least difunctional with respect to hydroxyl groups and a molecular weight between 300 and 2000. The mixtures of the glycols with the refrigerant will be miscible in the range f...

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Bibliographische Detailangaben
Hauptverfasser:	MAGID, HILLEL, STIEL, LEONARD, PELEVA, JOHN, W, THOMAS, RAYMOND
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	Compression refrigeration equipment using tetrafluoroethane as a working fluid employs polyoxyalkylene glycols which are at least difunctional with respect to hydroxyl groups and a molecular weight between 300 and 2000. The mixtures of the glycols with the refrigerant will be miscible in the range from -40C to at least +20C. Un équipement de réfrigération à compression utilisant du tétrafluoroéthane en tant que fluide de travail utilise des polyoxyalkylènes glycols qui sont au moins difonctionnels par rapport à des groupes hydroxyles et ont un poids moléculaire compris entre 300 et 2000. Les mélanges des glycols avec le réfrigérant est miscible à une température comprise entre -40°C jusqu'à au moins +20°C.