Composition of additives comprising a copolymer and a resin
US-2024076567-A1 · Mar 7, 2024 · US
Fuel oil compositions with improved cold flow properties
US10526558B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10526558-B2 |
| Application number | US-201816046034-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 26, 2018 |
| Priority date | Dec 4, 2003 |
| Publication date | Jan 7, 2020 |
| Grant date | Jan 7, 2020 |
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Abstract
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The use is described of polymers which contain, in copolymerized form, an α-olefin, a vinyl ester and an ester of an α,β-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
First claim
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What is claimed is: 1. A polymer, comprising, in copolymerized form, monomers M1, M2, and M3, wherein M1=ethylene M2=2-ethylhexyl acrylate M3=vinyl acetate the proportion by weight of the monomers is: 2-ethylhexyl acrylate: from 4% to 80% by weight, vinyl acetate: from 1% to 42% by weight, and wherein a viscosity of the polymer is from 10 to 1000 mm 2 /s at a temperature of 120° C. as determined according to DIN 51562. 2. The polymer according to claim 1 , wherein the proportion of weight of 2-ethylhexyl acrylate is from 5 to 62% by weight. 3. The polymer according to claim 1 , wherein the proportion of weight of 2-ethylhexyl acrylate is from 7 to 45% by weight. 4. The polymer according to claim 1 , wherein the number-average molecular weight Mn is from 1000 to 20000. 5. The polymer according to claim 1 , wherein the number-average molecular weight Mn is from 1000 to 10000. 6. The polymer according to claim 1 , wherein the weight-average molecular weight Mw is from 1000 to 30000. 7. The polymer according to claim 1 , wherein the weight-average molecular weight Mw is from 2000 to 20000. 8. The polymer according to claim 1 , wherein the Mw/Mn ratio is from 1.5 to 5.0.
Assignees
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Classifications
Resistance to extreme temperature · CPC title
Acrylate; Methacrylate · CPC title
as molar percentages · CPC title
mono-carboxylic · CPC title
Ethene · CPC title
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- What does patent US10526558B2 cover?
- The use is described of polymers which contain, in copolymerized form, an α-olefin, a vinyl ester and an ester of an α,β-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C10L10/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 07 2020 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).