WORKING FLUID

WORKING FLUID

PURPOSE: To provide a working fluid which has an ozone depeltion potential of zero and refrigerant characteristics at least equivalent to R22. CONSTITUTION: The working fluid essentially comprises difluoromethane in an amt. of at most 50wt.% and isobutane in an amt. of at most 70wt.% and optionally...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NASAKO KENJI, KATAOKA HISANORI, IKEMOTO MASAMI
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:PURPOSE: To provide a working fluid which has an ozone depeltion potential of zero and refrigerant characteristics at least equivalent to R22. CONSTITUTION: The working fluid essentially comprises difluoromethane in an amt. of at most 50wt.% and isobutane in an amt. of at most 70wt.% and optionally contains 1,1,1,2-tetrafluoroethane provided the amt. of 1,1,1,2- tetrafluoroethane is in the range defined by the polygonal line connecting the points A(4, 40), B(15, 30), C(50, 50), D(70, 30), E(25, 5), F(15, 5), G(5, 10), and H(0, 15).