Multiphase composite lubricant
US-2024093112-A1 · Mar 21, 2024 · US
Lubricating composition containing a dispersant
US9359578B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9359578-B2 |
| Application number | US-201514641626-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 9, 2015 |
| Priority date | May 20, 2010 |
| Publication date | Jun 7, 2016 |
| Grant date | Jun 7, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention provides a lubricating composition containing a compound comprising the reaction product of a polyolefin, an ethylenically unsaturated aromatic acylating agent (or carboxylic reactant), and an amine, and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine.
First claim
Opening claim text (preview).
What is claimed is: 1. A lubricating composition comprising an oil of lubricating viscosity and 0.1 wt % to 15 wt % of a compound comprising the reaction product of a polyolefin wherein the polyolefin is polyisobutylene, an ethylenically unsaturated aromatic acylating agent, and an aromatic amine, wherein the aromatic amine is selected from the group consisting of aniline, nitro aniline, aminocarbazole, 4-aminodiphenylamine (ADPA), and coupling products of ADPA. 2. The lubricating composition of claim 1 , wherein the aromatic amine is 4-aminodiphenylamine or coupling products of 4-aminodiphenylamine. 3. The lubricating composition of claim 1 , wherein the aromatic amine is coupling products of 4-aminodiphenylamine. 4. The lubricating composition of claim 1 , wherein the polyisobutylene has a number average molecular weight of 350 to 5000. 5. The lubricating composition of claim 1 , wherein the polyisobutylene has a number average molecular weight of 550 to 3000. 6. The lubricating composition of claim 1 , wherein the polyisobutylene has a number average molecular weight of 750 to 2500. 7. The lubricating composition of claim 1 , wherein the ethylenically unsaturated aromatic acylating agent is chosen from cis-cinnamic acid, trans-cinnamic acid, phenylpropiolic acid, phenyl maleic anhydride, or mixtures thereof, or derivatives thereof. 8. The lubricating composition of claim 1 , wherein the ethylenically unsaturated aromatic acylating agent is cis-cinnamic acid, trans-cinnamic acid, phenylpropiolic acid, or mixtures thereof. 9. The lubricating composition of claim 1 , wherein the ethylenically unsaturated aromatic acylating agent is trans-cinnamic acid, or mixtures of cis and trans cinnamic acid. 10. The lubricating composition of claim 1 , wherein the ethylenically unsaturated aromatic acylating agent is trans-cinnamic acid. 11. The lubricating composition of claim 1 , wherein the lubricating composition has a sulphated ash content of 0.5 wt % to 1.1 wt % of the lubricating composition. 12. A method of lubricating an internal combustion engine comprising supplying to the internal combustion engine a lubricating composition comprising the lubricating composition of claim 1 .
Assignees
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Classifications
Natural products · CPC title
Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound · CPC title
Thiadiazoles · CPC title
- C10M161/00Primary
Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential · CPC title
Five-membered ring containing nitrogen and carbon only · CPC title
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Frequently asked questions
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- What does patent US9359578B2 cover?
- The invention provides a lubricating composition containing a compound comprising the reaction product of a polyolefin, an ethylenically unsaturated aromatic acylating agent (or carboxylic reactant), and an amine, and an oil of lubricating viscosity. The invention further relates to the use of the lubricating composition in an internal combustion engine.
- Who is the assignee on this patent?
- Lubrizol Corp
- What technology area does this patent fall under?
- Primary CPC classification C10M161/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 07 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).