Nonionic surfactant compositions

Patent metadata

Field	Value
Publication number	US-9382192-B2
Application number	US-201314378848-A
Country	US
Kind code	B2
Filing date	Feb 14, 2013
Priority date	Feb 14, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

The present invention provides nonionic surfactants, compositions incorporating these surfactants, and related methods of making and using such surfactants and compositions. The nonionic surfactants demonstrate excellent equilibrium and dynamic surface tension properties as well as excellent wetting properties. Further, representative embodiments of the surfactants have shown low foaming characteristics, indicating that the surfactants would be suitable in applications where resistance to foaming is desired. The surfactants can be used singly or in combination with other nonionic and/or ionic surfactants as desired. As an over view, the nonionic surfactants of the present invention have a structure in which the surfactant backbone includes one or more amine moieties. At least one, preferably two or more branched, cyclic, fused cyclic, and/or spyro hydrophobic moieties are pendant from at least one of the amine moieties. Additionally, at least one, preferably two or more hydrophilic moieties, preferably alkylene oxide (i.e., polyether) chains also are pendant from at least one of the amine moieties.

First claim

What is claimed is:

1. A nonionic surfactant with the following formula

wherein each R 7 and each R 8 independently is a monovalent moiety comprising 1 to 20 carbon atoms; each R 9 independently is H, a monovalent moiety comprising 1 to 20 carbon atoms; and each t independently is 1 to 20; each E independently is H or an N-functional, monovalent moiety of the formula
—R 2 —(R 3 O) x —R 4

with the proviso that at least one E is not H, wherein each R 2 independently is a single bond or a divalent linking group; each R 3 is independently an alkylene moiety containing from 1 to 5 carbon atoms; each x independently is 1 to 100; and each R 4 independently is H or a monovalent moiety comprising from 1 to 8 carbon atoms.

2. A nonionic surfactant with the following formula

wherein each R 10 and each R 11 independently is a monovalent moiety comprising 1 to 20 carbon atoms; each R 12 independently is H, a monovalent moiety comprising 1 to 20 carbon atoms; and each q independently is 1 to 20; each E independently is H or an N-functional, monovalent moiety of the formula
—R 2 —(R 3 O) x +R 4

with the proviso that at least one E is not H, wherein each R 2 independently is a single bond or a divalent linking group; each R 3 is independently an alkylene moiety containing from 1 to 5 carbon atoms; each x independently is 1 to 100; and each R 4 independently is H or a monovalent moiety comprising from 1 to 8 carbon atoms.

3. A paint, an ink, an adhesive, a coating, or an oil and gas recovery composition comprising the nonionic surfactant of claim 1 or claim 2 .

Assignees

• Dow Global Technologies Llc

Inventors

• Elowe Paul R
• Krasovskiy Arkady L
• Graf Irina V
• Wang Lin

Classifications

• C07C213/08 Primary

  by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups · CPC title

• C07C217/08 Primary

  the oxygen atom of the etherified hydroxy group being further bound to an acyclic carbon atom · CPC title

• C07C209/28

  by reduction with other reducing agents · CPC title

• C07C2101/14

  Chemistry & Metallurgy · mapped topic

• C09K23/00

  Use of substances as emulsifying, wetting, dispersing, or foam-producing agents · CPC title