(Meth)acrylate copolymer and method for producing same
US-9388263-B2 · Jul 12, 2016 · US
Preparation of cationic surfactants
US11286232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11286232-B2 |
| Application number | US-202016942565-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 29, 2020 |
| Priority date | Jul 29, 2020 |
| Publication date | Mar 29, 2022 |
| Grant date | Mar 29, 2022 |
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- Title
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- Abstract
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Abstract
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Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants can be generated by reacting a fatty acid modified with an amino alkyl group, an epihalohydrin, and a carboxylic acid. The cationic surfactants can be generated by reacting a carboxylic acid, an epihalohydrin, and a catalyst to afford a halo-substituted alkyl ester, followed by reacting the halo-substituted alky ester with a fatty acid modified with an amino alkyl group.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound of Formula I: wherein X is halide, R 1 is a saturated or unsaturated alkyl with 4 to 28 carbons, R 2 is alkyl, R 3 is methyl, and R 4 is selected from the group consisting of 2. The compound of claim 1 , wherein R 2 is propyl. 3. The compound of claim 1 , wherein R 1 is a monounsaturated alkyl chain with 21 carbons. 4. The compound of claim 3 , wherein R 1 is 5. The compound of claim 1 , wherein R 4 is 6. The compound of claim 1 , wherein R 4 is 7. The compound of claim 1 , wherein R 4 is 8. A compound of Formula II: wherein R is selected from the group consisting of: and wherein X is halide. 9. The compound of claim 8 , wherein R is 10. The compound of claim 8 , wherein R is 11. The compound of claim 8 , wherein R is
Assignees
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Classifications
by reactions not involving the formation of carboxamide groups · CPC title
- C07C237/52Primary
having the nitrogen atom of at least one of the carboxamide groups further acylated · CPC title
having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton · CPC title
from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines · CPC title
characterised by the use of specific surfactants · CPC title
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- What does patent US11286232B2 cover?
- Compositions that include cationic surfactants and methods of synthesizing compositions that include cationic surfactants. The surfactants include a quaternary amine and a saturated or unsaturated alkyl chain with 4 to 28 carbons. The surfactants can be generated by reacting a fatty acid modified with an amino alkyl group and an epihalohydrin in the presence of a base. The cationic surfactants …
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C07C237/52. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 29 2022 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).