Siloxane and glucoside surfactant formulation for fire-fighting foam applications
US-11117008-B2 · Sep 14, 2021 · US
Siloxane and glucoside surfactant formulation for fire-fighting foam applications
US11291875B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11291875-B2 |
| Application number | US-202117458887-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2021 |
| Priority date | Apr 24, 2018 |
| Publication date | Apr 5, 2022 |
| Grant date | Apr 5, 2022 |
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- Title
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Abstract
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Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R′ is a siloxane group.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: forming a foam from a composition comprising: a first surfactant having the formula: a second surfactant having the formula: and water; wherein m and n are independently selected positive integers; wherein x and y are independently selected non-negative integers; wherein R is an organic group or H; and wherein R′ is a siloxane group; and applying the foam to a fire. 2. The method of claim 1 , wherein the first surfactant has the formula: 3. The method of claim 1 , wherein m is from 2 to 50. 4. The method of claim 1 , wherein n is from 1 to 20. 5. The method of claim 1 , wherein x is from 0 to 4. 6. The method of claim 1 , wherein y is from 0 to 5. 7. The method of claim 1 , wherein R is CH 3 — or H—. 8. The method of claim 1 , wherein the composition comprises more than one of the first surfactants or the second surfactants having different values of m, n, x, or Y. 9. The method of claim 1 , wherein the first surfactant has a concentration in the composition that is at least the critical micelle concentration of the first surfactant. 10. The method of claim 1 , wherein the first surfactant has a concentration in the composition of up to 1.0 wt. %. 11. The method of claim 1 , wherein the second surfactant has a concentration in the composition that is at least the critical micelle concentration of the second surfactant. 12. The method of claim 1 , wherein the second surfactant has a concentration in the composition of up to 1.0 wt. %. 13. The method of claim 1 , wherein the composition further comprises: a solvent having the formula: wherein p and z are positive integers. 14. The method of claim 13 , wherein p is from 4 to 12. 15. The method of claim 13 , wherein z is from 1 to 40. 16. The method of claim 13 , wherein the solvent as a concentration in the composition of up to 1 wt. %. 17. The method of claim 1 , further comprising: applying the foam to a fire in an amount sufficient to extinguish the fire.
Assignees
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Classifications
- A62D1/0071Primary
Foams · CPC title
- A62C5/02Primary
of foam · CPC title
using foam · CPC title
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Frequently asked questions
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- What does patent US11291875B2 cover?
- Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R′ is a siloxane group.
- Who is the assignee on this patent?
- Us Gov Sec Navy
- What technology area does this patent fall under?
- Primary CPC classification A62D1/0071. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Apr 05 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).