N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and fluids containing an N-hydroxyalkylated polyamine

US10934249B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10934249-B2
Application numberUS-201916353607-A
CountryUS
Kind codeB2
Filing dateMar 14, 2019
Priority dateJan 3, 2018
Publication dateMar 2, 2021
Grant dateMar 2, 2021

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and drilling fluids containing N-hydroxyalkylated polyamines are provided, in which the N-hydroxyalkylated polyamine includes Formula (I): where R 1 and R 2 are independently a —C or —CH group; R 3 is an aliphatic hydrocarbyl; R 4 and R 5 are independently acyclic hydrocarbyls, or R 1 , R 2 , R 4 , and R 5 are covalently connected to form a cyclic hydrocarbyl; and R 6 , R 7 , R 8 , and R 9 are independently acyclic hydrocarbyls or acyclic heterohydrocarbyls.

First claim

Opening claim text (preview).

The invention claimed is: 1. An N-hydroxyalkylated polyamine of Formula (I): where: R 1 and R 2 are independently a —C or —CH group; R 3 is an aliphatic hydrocarbyl; R 4 and R 5 are independently acyclic hydrocarbyls, or R 1 , R 2 , R 4 , and R 5 are covalently connected to form an unsaturated cyclic hydrocarbyl, wherein the unsaturated cyclic hydrocarbyl is substituted with one or more of an alkyl, aminoalkyl, aminoalkoxy, hydroxyl, alkoxyl, alkylthio, amino, halo, haloalkyl, silyl, phosphoryl, sulfonyl, saturated C 2 -C 20 acyclic hydrocarbyls, or unsaturated C 2 -C 20 acyclic hydrocarbyls; and R 6 , R 7 , R 8 , and R 9 are independently acyclic hydrocarbyls or acyclic heterohydrocarbyls. 2. The N-hydroxyalkylated polyamine of claim 1 , where R 3 is a saturated or unsaturated C 2 -C 20 acyclic hydrocarbyl. 3. The N-hydroxyalkylated polyamine of claim 1 , where at least one of R 4 and R 5 are unsaturated C 2 -C 20 acyclic hydrocarbyls. 4. The N-hydroxyalkylated polyamine of claim 1 , where the unsaturated cyclic hydrocarbyl is substituted with at least two acyclic hydrocarbyls. 5. The N-hydroxyalkylated polyamine of claim 1 , where the unsaturated cyclic hydrocarbyl is substituted with at least one C 2 -C 20 aminoalkoxy comprising two terminal hydroxyls. 6. The N-hydroxyalkylated polyamine of claim 1 , where R 1 , R 2 , R 4 and R 5 form an unsaturated cyclic hydrocarbyl, wherein the unsaturated cyclic hydrocarbyl is selected from Formulas (III) to (XVII): where R 14 , R 15 , R 16 , R 17 , R 18 , and R 19 independently are H, alkyl, aminoalkyl, aminoalkoxy, hydroxyl, alkoxyl, alkylthio, amino, halo, haloalkyl, silyl, phosphoryl, sulfonyl, or combinations of these, and where at least one of R 14 , R 15 , R 16 , R 17 , R 18 , and R 19 is not H. 7. A drilling fluid comprising: an aqueous phase; an oleaginous phase; and an N-hydroxyalkylated polyamine of Formula (I): where: R 1 and R 2 are independently a —C or —CH group; R 3 is an aliphatic hydrocarbyl; R 6 , R 7 , R 8 , and R 9 are independently acyclic hydrocarbyls or acyclic heterohydrocarbyls; and R 1 , R 2 , R 4 and R 5 , form a cyclic hydrocarbyl, the cyclic hydrocarbyl being selected from Formulas (II) to (XVIII): wherein, R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , and R 21 independently are H, alkyl, aminoalkyl, aminoalkoxy, hydroxyl, alkoxyl, alkylthio, amino, halo, haloalkyl, silyl, phosphoryl, sulfonyl, or combinations of these. 8. The drilling fluid of claim 7 , where R 3 is a saturated or unsaturated C 2 -C 20 acyclic hydrocarbyl group. 9. The drilling fluid of claim 7 , where the cyclic hydrocarbyl is substituted with one or more of alkyl, aminoalkyl, aminoalkoxy, hydroxyl, alkoxyl, alkylthio, amino, halo, haloalkyl, silyl, phosphoryl, sulfonyl, saturated C 2 -C 20 acyclic hydrocarbyls, or combinations thereof. 10. The drilling fluid of claim 7 , where the cyclic hydrocarbyl is substituted with at least one C 2 -C 20 aminoalkoxy comprising two terminal hydroxyls. 11. The N-hydroxyalkylated polyamine of claim 1 , where R 4 and R 5 are independently acyclic hydrocarbyls.

Assignees

Inventors

Classifications

  • Water-in-oil emulsions · CPC title

  • C07C215/14Primary

    the nitrogen atom of the amino group being further bound to hydrocarbon groups substituted by amino groups · CPC title

  • of hydroxy or O-metal groups · CPC title

  • with one amino group and at least two hydroxy groups bound to the carbon skeleton · CPC title

  • by reaction of ammonia or amines with olefin oxides or halohydrins · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10934249B2 cover?
N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and drilling fluids containing N-hydroxyalkylated polyamines are provided, in which the N-hydroxyalkylated polyamine includes Formula (I): where R 1 and R 2 are independently a —C or —CH group; R 3 is an aliphatic hydrocarbyl; R 4 and R 5 are independently acyclic hydrocarbyls, or R 1…
Who is the assignee on this patent?
Saudi Arabian Oil Co
What technology area does this patent fall under?
Primary CPC classification C07C215/14. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 02 2021 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).