Title:
自然系冷媒用冷凍機油組成物
Document Type and Number:
Japanese Patent JP4603117
Kind Code:
B2
Abstract:
This invention describes a refrigerating oil composition for natural substance-based refrigerants which comprises (A) a synthetic oil component comprising a polyether compound having a pour point of -10 DEG C or lower and (B) a mineral oil component comprising sulfur components, wherein the ratio of amounts by weight of component (A) to component (B) is in the range of 25:75 to 99:1 and the amount of the sulfur components derived from component (B) in the composition is in the range of 5 to 1,000 ppm. The refrigerating oil composition has excellent miscibility with natural substance-based refrigerants and, in particular, with ammonia-based refrigerants, exhibits an improved lubricity and used for industrial refrigerators using natural substance-based refrigerants such as ammonia, propane, butane and carbon dioxide.
Inventors:
Toshinori Tasaki
Application Number:
JP37335199A
Publication Date:
December 22, 2010
Filing Date:
December 28, 1999
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M111/04; C09K5/04; C10M169/04; C10M171/00; C10M101/02; C10M107/24; C10M107/34; C10N20/00; C10N30/00; C10N30/06; C10N40/30
Domestic Patent References:
| JP8100187A | ||||
| JP11323369A | ||||
| JP10046169A | ||||
| JP10147682A | ||||
| JP8193196A | ||||
| JP58103594A |
Foreign References:
| US5413728 | ||||
| DE4404804A1 |
Attorney, Agent or Firm:
Tamotsu Otani