|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||252/68 ; 252/52R ; 252/52A ; 252/67|
|우선권정보||JP-0143922 (1992-06-04); JP-0237842 (1992-09-07)|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 0|
A lubricating oil for compression-type refrigerators which comprises as the main component thereof a polyvinyl ether compound having excellent compatibility with a hydrofluorocarbon or a hydrochlorofluorocarbon, such as 1,1,1,2-tetrafluoroethane and the like, which can be used as the refrigerant to replace compounds causing environmental pollution, such as dichlorofluoroethane and the like, and having an excellent lubricating property is disclosed. The lubricating oil for compression-type refrigerators comprises as the main component thereof a polyvinyl ...
A lubricating oil composition for a compression-type refrigerator, said composition comprising a refrigerant selected from the group consisting of a hydrofluorocarbon, a hydrochlorofluorocarbon and ammonia, and a lubricant comprising as a main component thereof a polyvinyl ether compound having the constituting unit expressed by the general formula (I): [Figure] (I) wherein R1, R2 and R3 are a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms, respectively, and may be the same or different from each other, R4 is a bivalent hydrocarbon group...