Multi-branched mannich base corrosion inhibitor and preparation method thereof
US-9493399-B2 · Nov 15, 2016 · US
Quaternary ammonium corrosion inhibitor
US9103039B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103039-B2 |
| Application number | US-201013319186-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2010 |
| Priority date | May 7, 2009 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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The present invention relates to a corrosion inhibitor for use in the oil and gas exploration, recovery and processing industries. In particular, the invention relates to a quaternary ammonium compound suitable for use as such a corrosion inhibitor, to the manufacture of the quaternary ammonium compound, to compositions containing it, and to methods of using it. Quaternary ammonium compounds of the invention have the formula (I) in which R is C 1-6 alkyl, C 2-6 alkenyl, aryl, aralkyl; X, Y, and Z are each independently hydrogen, or R1CO—, provided that at least one of X, Y and Z is R1CO, where R1 is C 5-23 alkyl or alkenyl containing 0, 1, 2 or 3 double bonds; D is C 2-6 alkylene; E is C 2-4 alkylene; p, q and r are each, independently, integers from 0 to 20, with the proviso that p+q+r is from 3 to 20; and A − is an anion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A corrosion inhibitor composition comprising a water miscible organic solvent and a quaternary ammonium compound of formula (I): wherein: R is an alkyl group containing 1 to 6 carbon atoms, an alkenyl group containing 2 to 6 carbon atoms, an aryl, or aralkyl group; one of X, Y and Z is a group of formula R1CO and the other two ar…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C23F11/141Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9103039B2 cover?
- The present invention relates to a corrosion inhibitor for use in the oil and gas exploration, recovery and processing industries. In particular, the invention relates to a quaternary ammonium compound suitable for use as such a corrosion inhibitor, to the manufacture of the quaternary ammonium compound, to compositions containing it, and to methods of using it. Quaternary ammonium compounds of…
- Who is the assignee on this patent?
- Jenkins Alyn, Grainger Neil, Blezard Michael, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C23F11/141. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 11 2015 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).