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US 10,351,793 B2Granted
Refrigerator oil and working fluid composition for refrigerators
AssigneeJxtg Nippon Oil & Energy Corporation
InventorsHitoshi Takahashi, Takeshi Okido, Souichirou Konno
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Abstract
The present invention provides a refrigerating machine oil comprising: a base oil containing an ester of dipentaerythritol with 2-methylbutanoic acid and n-pentanoic acid; and at least one epoxy compound selected from the group consisting of a glycidyl ester compound and a glycidyl ether compound, the refrigerating machine oil being used with a difluoromethane refrigerant.
Claims14
A refrigerating machine oil comprising:
- a base oil comprising an ester of dipentaerythritol with 2-methylbutanoic acid and n-pentanoic acid;
- and
- an epoxy compound consisting of at least one epoxy compound selected from the group consisting of a glycidyl ester compound and a glycidyl ether compound,
- wherein the glycidyl ester compound is represented by the following formula (1):
- wherein R1 represents an aryl group, an alkyl group, or an alkenyl group, and the number of carbon atoms of the aryl group, the alkyl group, and the alkenyl group is from 5 to 18, and
- wherein the glycidyl ether compound is represented by the following formula (2):
- wherein R2 represents an aryl group or an alkyl group, and the number of carbon atoms of the aryl group and the alkyl group is from 5 to 18.
4 more elements
A working fluid composition for a refrigerating machine, comprising:
- a refrigerating machine oil comprising:
- a base oil comprising an ester of dipentaerythritol with 2-methylbutanoic acid and n-pentanoic acid;
- and
- an epoxy compound consisting of at least one epoxy compound selected from the group consisting of a glycidyl ester compound and a glycidyl ether compound;
- and
- a refrigerant comprising a difluoromethane refrigerant,
- wherein the glycidyl ester compound is represented by the following formula (1):
- wherein R1 represents an aryl group, an alkyl group, or an alkenyl group, and the number of carbon atoms of the aryl group, the alkyl group and alkenyl group is from 5 to 18, and
- wherein the glycidyl ether compound is represented by the following formula (2):
- wherein R2 represents an aryl group or an alkyl group, and the number of carbon atoms of the aryl group and the alkyl group is from 5 to 18.
7 more elements
Dependencies are inferred from the claim text.