Refrigerator oil and hydraulic fluid composition for refrigerators
US-2020369979-A1 · Nov 26, 2020 · US
Refrigerator oil and working fluid composition for refrigerator
US2025297188A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025297188-A1 |
| Application number | US-202519227890-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 4, 2025 |
| Priority date | Dec 24, 2020 |
| Publication date | Sep 25, 2025 |
| Grant date | — |
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- Title
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Abstract
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A refrigerating machine oil containing a hydrocarbon base oil having a 90% distillation temperature of 270° C. or lower.
First claim
Opening claim text (preview).
1 . A refrigerating machine oil comprising a hydrocarbon base oil having a 90% distillation temperature of 270° C. or lower, wherein a ratio of a paraffin to a cycloparaffin in the refrigerating machine oil is 0.3 or more and 10 or less. 2 . The refrigerating machine oil according to claim 1 , wherein the hydrocarbon base oil has an initial boiling point of 140° C. or higher. 3 . The refrigerating machine oil according to claim 1 , further comprising a phosphorus-containing antiwear agent. 4 . The refrigerating machine oil according to claim 1 , wherein the refrigerating machine oil has a flash point of 70° C. or higher. 5 . The refrigerating machine oil according to claim 1 , wherein a content of a hydrocarbon having 12 to 16 carbon atoms in a hydrocarbon base oil contained in the refrigerating machine oil is 80% by mass or more. 6 . The refrigerating machine oil according to claim 1 , wherein the refrigerating machine oil has a difference between a 90% distillation temperature and a 10% distillation temperature of 5° C. or higher and 40° C. or lower. 7 . The refrigerating machine oil according to claim 1 , wherein the refrigerating machine oil has a carbon residue of 10% residual oil of 0.02% by mass or more. 8 . The refrigerating machine oil according to claim 1 , wherein a content of a n-paraffin in a hydrocarbon base oil contained in the refrigerating machine oil is 5% by mass or more and 50% by mass or less. 9 . The refrigerating machine oil according to claim 1 , wherein the refrigerating machine oil has a 90% distillation temperature of 270° C. or lower. 10 . A working fluid composition comprising: a refrigerating machine oil comprising a hydrocarbon base oil having a 90% distillation temperature of 270° C. or lower, wherein a ratio of a paraffin to a cycloparaffin in the refrigerating machine oil is 0.3 or more and 10 or less; and a refrigerant. 11 . The working fluid composition according to claim 10 , wherein the refrigerant comprises a hydrocarbon. 12 . The working fluid composition according to claim 10 , wherein the hydrocarbon base oil has an initial boiling point of 140° C. or higher. 13 . The working fluid composition according to claim 10 , the refrigerating machine oil further comprises a phosphorus-containing antiwear agent. 14 . The working fluid composition according to claim 10 , wherein the refrigerating machine oil has a flash point of 70° C. or higher. 15 . The working fluid composition according to claim 10 , wherein a content of a hydrocarbon having 12 to 16 carbon atoms in a hydrocarbon base oil contained in the refrigerating machine oil is 80% by mass or more. 16 . The working fluid composition according to claim 10 , wherein the refrigerating machine oil has a difference between a 90% distillation temperature and a 10% distillation temperature of 5° C. or higher and 40° C. or lower. 17 . The working fluid composition according to claim 10 , wherein the refrigerating machine oil has a carbon residue of 10% residual oil of 0.02% by mass or more. 18 . The working fluid composition according to claim 10 , wherein a content of a n-paraffin in a hydrocarbon base oil contained in the refrigerating machine oil is 5% by mass or more and 50% by mass or less. 19 . The working fluid composition according to claim 10 , wherein the refrigerating machine oil has a 90% distillation temperature of 270° C. or lower.
Assignees
Inventors
Classifications
Refrigerators lubricants {or compressors lubricants} · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
Thioderivatives not containing metallic elements · CPC title
Triaryl phosphates · CPC title
used as base material · CPC title
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- What does patent US2025297188A1 cover?
- A refrigerating machine oil containing a hydrocarbon base oil having a 90% distillation temperature of 270° C. or lower.
- Who is the assignee on this patent?
- Eneos Corp
- What technology area does this patent fall under?
- Primary CPC classification C09K5/042. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).