Block copolymers and the use thereof for improving the cold properties of fuels or combustibles
US-2018030363-A1 · Feb 1, 2018 · US
Polyacrylamide antifoam components for use in diesel fuels
US11639479B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11639479-B2 |
| Application number | US-201916982757-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2019 |
| Priority date | Mar 21, 2018 |
| Publication date | May 2, 2023 |
| Grant date | May 2, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
There is disclosed an antifoam component which includes at least one acrylamide polymer for use in a diesel fuel. Acrylamide polymers prepared by polymerizing a (meth)acrylamide monomer to yield a homopolymer or, alternatively, the acrylamide polymer may be prepared by polymerizing a (meth)acrylamide monomer and a (meth)acrylate monomer to yield a heteropolymer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A composition comprising a diesel fuel and at least one acrylamide polymer prepared by polymerizing: fa) 1 wt % of a (meth)acrylamide monomer comprising N,N-diethylacrylamide (“NNDEAD”), N-(tertbutyl)acrylamide (“NTBAD”), or combinations thereof; and (b) 99 wt % a (meth)acrylate monomer prepared from a (meth)acrylate monomer comprising tert-butyl acrylate (“TBAT”) to yield a heteropolymer, wherein the at least one polymer is present in an amount from 1 ppm to 100 ppm by weight, based on a total weight of the composition. 2. The composition of claim 1 , wherein the acrylate polymer is at least one of a copolymer, block polymer, random polymer, terpolymer, or combinations thereof. 3. The composition of claim 1 , wherein the at least one polymer has a weight average molecular weight (“M w ”) of from 10,000 to 350,000 Da. 4. The composition of claim 1 , wherein the at least one polymer has a M w of from 30,000 to 200,000 Da.
Assignees
Inventors
Classifications
compounds containing N-atoms · CPC title
- C10L1/2364Primary
homo- or copolymers derived from unsaturated compounds containing amide and/or imide groups (C10L1/221 takes precedence) · CPC title
- C10L1/146Primary
Macromolecular compounds according to different macromolecular groups, mixtures thereof · CPC title
mono-carboxylic · CPC title
Diesel · CPC title
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Frequently asked questions
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- What does patent US11639479B2 cover?
- There is disclosed an antifoam component which includes at least one acrylamide polymer for use in a diesel fuel. Acrylamide polymers prepared by polymerizing a (meth)acrylamide monomer to yield a homopolymer or, alternatively, the acrylamide polymer may be prepared by polymerizing a (meth)acrylamide monomer and a (meth)acrylate monomer to yield a heteropolymer.
- Who is the assignee on this patent?
- Lubrizol Corp
- What technology area does this patent fall under?
- Primary CPC classification C10L1/2364. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 02 2023 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).