Title:
冷凍機油組成物
Document Type and Number:
Japanese Patent JP4212680
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a composition which has excellent lubricating properties and which can reduce abrasion of lubricating parts using aluminum materials when hydrocarbon-based refrigerants are used by blending a glyceryl ether compound with a base oil comprising mineral oils and/or synthetic oils in a specific ratio. SOLUTION: A compound of the formula: R<1> -OCH2 CH(OH)CH2 CH (wherein R<1> is a 10-22C alkyl) is blended in an amount of 0.01-10 wt.% based on the total amount of the composition. As a base oil, synthetic oils are more preferred than mineral oils and especially oxygen-containing synthetic oils are suitable. Among them, polyvinyl ethers, polyol esters and polyalkylene glycols are suitable. Especially, a polyvinyl ether copolymer having a structural unit of formula I (wherein R<42> is a 1-3C hydrocarbon which has or does not have an ether linkage) and a structural unit of formula II (wherein R<43> is a 3-20C hydrocarbon which has or does not have an ether linkage) is suitable.
More Like This:
| JPWO2020158731 | Air control device in the refrigerator |
| JP2021511425 | Heat transfer compositions, methods, and systems |
| WO/2016/171264 | COMPOSITION FOR USE IN HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM |
Inventors:
Takei Masahiko
Nagakawa Hiroshi
Nagakawa Hiroshi
Application Number:
JP12190898A
Publication Date:
January 21, 2009
Filing Date:
May 01, 1998
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M107/24; C10M169/04; C10M129/16; C10N30/06; C10N40/30
Domestic Patent References:
| JP4337391A | ||||
| JP9272886A | ||||
| JP11012591A | ||||
| JP9302372A | ||||
| JP8209180A | ||||
| JP59025890A |
Attorney, Agent or Firm:
Tamotsu Otani