Lubricating oil composition and production method therefor
US-2021198592-A1 · Jul 1, 2021 · US
Lubricating oil composition
US12448583B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12448583-B2 |
| Application number | US-202318839545-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 21, 2023 |
| Priority date | Feb 21, 2022 |
| Publication date | Oct 21, 2025 |
| Grant date | Oct 21, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
This disclosure describes a lubricating oil composition that includes a major amount of an oil of lubricating viscosity and one or more nitrogen-containing additive having the formula: wherein R 1 is functional group containing 10 to 250 carbon atoms; and R 2 and R 3 are independently functional groups containing 2 to 20 carbon atoms.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and one or more nitrogen-containing additive having the formula: wherein R 1 is a functional group containing 10 to 250 carbon atoms; and R 2 and R 3 are independently functional groups containing 2 to 20 carbon atoms. 2. The lubricating oil composition of claim 1 wherein the amount of phosphorus content provided by one or more nitrogen-containing additive is from about 50 ppm to about 5000 ppm based on the total lubricating oil composition. 3. The lubricating oil composition of claim 1 wherein the composition further comprises at least one dispersant additive. 4. The lubricating oil composition of claim 3 wherein the at least one dispersant additive is an ashless succinimide or borated succinimide dispersant. 5. The lubricating oil composition of claim 1 wherein the amount of sulfated ash is from about 0.3 wt. % to about 1.2 wt. % based on the total weight of the lubricating oil composition. 6. The lubricating oil composition of claim 1 wherein R 2 or R 3 is a primary alkyl hydrocarbon of C3 to C18. 7. The lubricating oil composition of claim 6 wherein the primary alkyl hydrocarbon is 2-ethylhexyl. 8. The lubricating oil composition of claim 1 wherein R 2 or R 3 is a secondary alkyl hydrocarbon of C3 to C12. 9. The lubricating oil composition of claim 8 wherein the secondary alkyl hydrocarbons is a mixture of 2-butyl and 4-methyl-2-pentyl. 10. The lubricating oil composition of claim 1 , wherein the lubricating oil composition contains less than about 900 ppm of zinc. 11. A method of increasing the friction coefficient of a wet clutch comprising contacting a metal surface with a lubricating oil composition comprising a major amount of an oil of lubricating viscosity and one or more nitrogen-containing additive having the formula: wherein R 1 is a functional group containing 10 to 250 carbon atoms; and R 2 and R3 are independently functional groups containing 2 to 20 carbon atoms. 12. The method of claim 11 wherein the amount of phosphorus content provided by one or more nitrogen-containing additive is from about 50 ppm to about 5000 ppm based on the total lubricating oil composition. 13. The method of claim 11 wherein the composition further comprises at least one dispersant additive. 14. The method of claim 13 wherein the at least one dispersant additive is an ashless succinimide or borated succinimide dispersant. 15. The method of claim 11 wherein the amount of sulfated ash is from about 0.3 wt. % to about 1.2 wt. % based on the total weight of the lubricating oil composition. 16. The method of claim 15 wherein R 2 or R 3 is a primary alkyl hydrocarbon of C3 to C18. 17. The method of claim 16 wherein the primary alkyl hydrocarbon is 2-ethylhexyl. 18. The method of claim 11 wherein R 2 or R 3 is a mixture of secondary alkyl hydrocarbons. 19. The method of claim 18 wherein the mixture of secondary alkyl hydrocarbons is 2-butyl and 4-methyl-2-pentyl. 20. The method of claim 11 , wherein the wet clutch contains cellulose fiber and/or aramid fiber.
Assignees
Inventors
Classifications
Oil-bath; Gear-boxes; Automatic transmissions; Traction drives · CPC title
Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title
Detergent property or dispersant property · CPC title
obtained by phosphorisation of macromolecualr compounds not containing phosphorus in the monomers · CPC title
used as base material · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12448583B2 cover?
- This disclosure describes a lubricating oil composition that includes a major amount of an oil of lubricating viscosity and one or more nitrogen-containing additive having the formula: wherein R 1 is functional group containing 10 to 250 carbon atoms; and R 2 and R 3 are independently functional groups containing 2 to 20 carbon atoms.
- Who is the assignee on this patent?
- Chevron Oronite Co, Chevron Japan Ltd
- What technology area does this patent fall under?
- Primary CPC classification C10M153/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 21 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).