(meth) acrylic acid copolymer and method for manufacturing same
US-2015051363-A1 · Feb 19, 2015 · US
Methods and compositions for prevention of fouling in caustic towers
US12173243B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12173243-B2 |
| Application number | US-202017121597-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 14, 2020 |
| Priority date | Mar 18, 2016 |
| Publication date | Dec 24, 2024 |
| Grant date | Dec 24, 2024 |
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Abstract
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Methods and compositions for inhibiting carbonyl-based fouling of basic wash systems. The methods comprise contacting the hydrocarbon stream that is or will be subjected to such washing with water soluble or water dispersible copolymers comprising repeat units of 1) ethylenically unsaturated monomers such as acrylic acid with one or more 2) other repeat units such as alkyl acrylates, allyl ethers, ethoxylated allyl repeat units, etc. In other embodiments, a third repeat unit 3) is present and may comprise a hydrophobic moiety such as a styrene repeat unit. The compositions may be terpolymers comprising repeat units 1), 2), and 3).
First claim
Opening claim text (preview).
The invention claimed is: 1. A water soluble terpolymer selected from the group consisting of acrylic acid/allyl hydroxylated alkyl ether/styrene, acrylic acid/allyl hydroxypropyl sulfonate ether/styrene and acrylic acid/allyl polyethylene glycol ether/styrene. 2. A water soluble polymer comprising four repeat units, said polymer selected from the group consisting of acrylic acid/polyethylene glycol allyl ether/allylpolyethoxy (10) sulfate/styrene and acrylic acid/allyl hydroxypropyl sulfonate ether/allyl polyethyoxy (10) sulfate/styrene. 3. The water soluble terpolymer composition as recited in claim 1 , wherein the molecular weight of these polymers may range from about 500-500,000 (M n ).
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containing nitrogen, oxygen and sulfur · CPC title
containing sulfur and oxygen · CPC title
and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS] · CPC title
and containing oxygen, e.g. 2-sulfoethyl (meth)acrylate · CPC title
containing solubilisers, e.g. solutisers · CPC title
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- What does patent US12173243B2 cover?
- Methods and compositions for inhibiting carbonyl-based fouling of basic wash systems. The methods comprise contacting the hydrocarbon stream that is or will be subjected to such washing with water soluble or water dispersible copolymers comprising repeat units of 1) ethylenically unsaturated monomers such as acrylic acid with one or more 2) other repeat units such as alkyl acrylates, allyl ethe…
- Who is the assignee on this patent?
- Bl Technologies Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F220/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 24 2024 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).