Refrigerator oil compositions and fluid compositions for refrigerator
AssigneeNippon Mitsubishi Oil Corporation
InventorsKatsuya Takigawa, Umekichi Sasaki, Satoshi Suda
Life of this patent
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Abstract
A refrigerator oil composition for use with an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof, which comprises component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350 and said component (B) being 30 to 1% by weight of at least one synthetic oil containing oxygen selected from the group consisting of an ester, a polyalkylene glycol, an alkyl ether of the polyalkylene glycol, a modified compound of polyglycol, a ketone, a polyphenyl ether, a silicone, a polysiloxane and a perfluoro ether.
Claims18
A refrigerator oil composition for use with an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof, which comprises component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350, said alkylbenzenes having a kinematic viscosity of 3 to less than 72.6 mm2 /s at a temperature of 40° C., said component (B) being 30 to 1% by weight of at least one synthetic oil containing oxygen, said synthetic oil being a member selected from the group consisting of a dibasic ester, a polyol ester, a complex ester, a polyol carbonate, a polyalkylene glycol, an alkyl ether of said polyalkylene glycol, an adduct of a polyol with an alkylene oxide, an alkyl ether of said adduct of a polyol with an alkylene oxide, an ester of a polyalkylene glycol, an ester of a monoalkyl ether of a polyalkylene glycol, an ester of an adduct of said polyol with an alkylene oxide, an ester of a partial alkyl ether of said adduct of a polyol with an alkylene oxide, a ketone and a mixture thereof.
A refrigerator fluid composition which comprises:
- (I) an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof and
- (II) a refrigerator oil comprising component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350, said alkylbenzenes having a kinematic viscosity of 3 to less than 72.6 mm 2/s at a temperature of 40° C., said component (B) being 30 to 1% by weight of at least one synthetic oil containing oxygen, said synthetic oil being a member selected from the group consisting of a dibasic ester, a polyol ester, a complex ester, a polyol carbonate, a polyalkylene glycol, an alkyl ether of said polyalkylene glycol, an adduct of a polyol with an alkylene oxide, an alkyl ether of said adduct of a polyol with an alkylene oxide, an ester of a polyalkylene glycol, an ester of a monoalkyl ether of a polyalkylene glycol, an ester of said adduct of a polyol with an alkylene oxide, an ester of a partial alkyl ether of an adduct of a polyol with an alkylene oxide, a ketone and a mixture thereof.
A refrigerator oil composition for use with an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof, which composition comprises component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350, said alkylbenzenes having a kinematic viscosity of 3 to less than 72.6 mm2 /s at a temperature of 40° C., said component (B) being 30 to 1% by weight of a synthetic oil containing oxygen.
A refrigerator fluid composition which comprises:
- (I) an HFC refrigerant containing HFC-134a, HFC-125 or a mixture thereof and
- (II) a refrigerator oil comprising component (A) and component (B), said component (A) being 70 to 99% by weight of an alkylbenzene oil containing at least 60% by weight, based on the total weight of component (A), of alkylbenzenes having a molecular weight of 200 to 350, said alkylbenzenes having a kinematic viscosity of 3 to less than 72.6 mm2/s at a temperature of 40° C., said component (B) being 30 to 1% by weight of a synthetic oil containing oxygen.
Dependencies are inferred from the claim text.