Title:
FLUID COMPOSITION FOR COMPRESSION REFRIGERATION SYSTEM
Document Type and Number:
Japanese Patent JP3782490
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid compsn. which contains an ammonia refrigerant and a specific lubricant compsn., is excellent in miscibility, solubility, and non- polluting properties, and is useful for heat pumps, refrigeration compressors, etc.
SOLUTION: This fluid compsn. contains (A) an ammonia refrigerant and (B) a lubricant compsn. comprising a polyalkylene glycol of the formula (wherein Z is a residue of a compd. having 1-8 active hydrogens and the minium number of carbon atoms of 6 where Z is an aryl and the minimum number of carbon atoms of 10 where Z is an alkyl; R1 is H, methyl, or ethyl; n is 0 or a positive number; m is a positive number; and p is an integer having a value equal to the number of active hydrogens of Z) which has a mol.wt. of 400-2,000 and is prepd. by reacting an org. oxide selected from among ethylene oxide, propylene oxide, and butylene oxide with an alcohol such as benzyl alcohol or octylphenol. The viscosity of the fluid compsn. is pref. 25-150 cSt at 40°C.
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Inventors:
Glendy Short
Rals Ivan Sujoholm
Thomas E. Lajuski
Rals Ivan Sujoholm
Thomas E. Lajuski
Application Number:
JP22078995A
Publication Date:
June 07, 2006
Filing Date:
August 29, 1995
Export Citation:
Assignee:
CPI Engineering Services, Inc.
International Classes:
C09K5/04; C10M107/34; C10M105/18; C10M171/00; C10M177/00; F25B1/00; C10N20/02; C10N20/04; C10N30/00; C10N30/02; C10N30/06; C10N30/08; C10N30/18; C10N40/30; C10N70/00; (IPC1-7): C10M107/34; C09K5/04; C10M105/18; //C10N20:02; C10N20:04; C10N30:00; C10N40:30; C10N70:00
Domestic Patent References:
JP6100881A | ||||
JP688086A | ||||
JP379696A | ||||
JP3217498A | ||||
JP5736194A | ||||
JP59483A | ||||
JP753981A |
Foreign References:
WO1994012594A1 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Koji Kikawa
Naganuma Akio
Hajime Asamura
Koji Kikawa
Naganuma Akio
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