Lubricant and combination lubricant and refrigerant composition

Details Lubricant and combination lubricant and refrigerant composition Lubricant and combination lubricant and refrigerant composition

1996-09-30

1998-08-25

Diamond, Alan

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

508466, 508468, 508496, C09K 504, C10M14516

Patent

active

057980543

ABSTRACT:
A lubricant and combination lubricant and refrigerant composition for use in a refrigerating machine in which a substitute freon refrigerant, which lubricant contains a polymer of a fumaric ester or a fumaric ester and a copolymerizable alkylene, and optionally contains an organic carboxylic ester or a polyalkylene glycol with a kinematic viscosity of 2 to 30 cSt. The lubricant is compatible with substitute freon refrigerants such as hydrogen-containing halogenated hydrocarbons, particularly R 134a, in a wide temperature range, has a high viscosity index, is thermally and chemically stable, and has an excellent lubricity.

REFERENCES:
patent: 2460035 (1949-01-01), Rogers et al.
patent: 5176841 (1993-01-01), Wallfahrer et al.

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