Working fluid composition for HFC refrigerant compressor contain

Details Working fluid composition for HFC refrigerant compressor contain Working fluid composition for HFC refrigerant compressor contain

1995-06-06

1996-10-01

Skane, Christine

Compositions

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

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

252 67, 508281, C09K 504, C10M10508, C10M13338

Patent

active

055608540

ABSTRACT:
A working fluid composition for a compression type refrigerator, comprising:
(A) a refrigerant composed of ammonia or at least one hydrofluorocarbon having the number of carbon being not more than 2 and containing no chlorine; and
(B) a lubricant for the refrigerator, said lubricant comprising 100 parts by weight of a synthetic oil and 0.5 to 10.0 parts by weight of at least one benzotriazole derivative expressed by the following formula (I). ##STR1## in which R.sup.1 is hydrogen or an alkyl group having the number of carbons being 1-10, and R.sup.2 and R.sup.3 independently indicate an alkyl group having the number of carbons being 4-18.

REFERENCES:
patent: 3623987 (1971-11-01), Kerr et al.
patent: 3652411 (1972-03-01), Commichau
patent: 4335006 (1982-06-01), Bandlish et al.
patent: 4367152 (1983-01-01), Wright et al.
patent: 4701273 (1987-10-01), Brady et al.
patent: 4851144 (1989-07-01), McGraw et al.
patent: 5185092 (1993-02-01), Fukuda et al.
patent: 5202044 (1993-04-01), Hagihara et al.
patent: 5407592 (1995-04-01), Cheng et al.

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