Zwitterionic and glucoside surfactant formulations for fire-fighting foam applications
US-11420083-B2 · Aug 23, 2022 · US
Siloxane-triazoleglucoside and glucoside surfactant formulations for fire-fighting foam applications
US12290711B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12290711-B2 |
| Application number | US-202418806874-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2024 |
| Priority date | Aug 29, 2023 |
| Publication date | May 6, 2025 |
| Grant date | May 6, 2025 |
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- Title
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- Abstract
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Abstract
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The compound below may be used in a fire-fighting formulation along with a poly(glucoside)-alkane, a poly(ethylene glycol) monoalkyl ether, and water. The value n is 2 or 3, R is a C3-C9 alkylene group, X is —O— or —N(COCH 3 )—, and c is a positive integer. It may be made by reacting a polysaccharide with acetic anhydride, propargyl alcohol, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane. Alternatively, it may be made by reacting a polysaccharide with propargylamine, acetic anhydride, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound having the formula: wherein n is 2 or 3; wherein R is a C3-C9 alkylene group; wherein X is —O— or —N(COCH 3 )—; and wherein c is a positive integer. 2. The compound of claim 1 , wherein the compound is 3. The compound of claim 1 , wherein the compound is 4. The compound of claim 1 , wherein the compound is 5. A composition comprising: the compound of claim 1 ; a poly(glucoside)-alkane having the formula: wherein n is an integer from 1 to 20; and wherein x is a positive integer; and water. 6. The composition of claim 5 , further comprising: a poly(ethylene glycol) monoalkyl ether having the formula: wherein z is a positive integer; and wherein p is a positive integer. 7. A method comprising: mixing the composition of claim 5 with air to form a foam. 8. The method of claim 7 , further comprising: applying the foam to a fire. 9. The method of claim 7 , further comprising: applying the foam to a fire in an amount sufficient to extinguish the fire. 10. A method comprising: providing a polysaccharide having the formula: wherein c is a positive integer; reacting the polysaccharide with acetic anhydride to form acetate groups, forming a polysaccharide acetate having the formula: reacting the polysaccharide acetate with propargyl alcohol to form a propargyl compound having the formula: and reacting the propargyl compound with an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane to form a compound having the formula: wherein n is 2 or 3; and wherein R is a C3-C9 alkylene group. 11. The method of claim 10 , wherein the polysaccharide is maltose. 12. The method of claim 10 , wherein the azidoalkyltris(trimethylsiloxy)silane is 3-azidopropyltris(trimethylsiloxy) silane. 13. The method of claim 10 , wherein the azidoalkylbis(trimethylsiloxy)methylsilane is 3-azidopropylbis(trimethylsiloxy)methylsilane. 14. A method comprising: providing a polysaccharide having the formula: wherein c is a positive integer; reacting the polysaccharide with propargylamine to form a propargyl compound having the formula: reacting the propargyl compound with acetic anhydride to form acetate groups, forming a polysaccharide acetate having the formula: and reacting the polysaccharide acetate with an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane to form a compound having the formula: wherein n is 2 or 3; and wherein R is a C3-C9 alkylene group. 15. The method of claim 14 , wherein the polysaccharide is maltose. 16. The method of claim 14 , wherein the azidoalkyltris(trimethylsiloxy)silane is 3-azidopropyltris(trimethylsiloxy)silane. 17. The method of claim 14 , wherein the azidoalkylbis(trimethylsiloxy)methylsilane is 3-azidopropylbis(trimethylsiloxy)methylsilane.
Assignees
Inventors
Classifications
Reactions not involving the Si atom of the Si-O-Si sequence · CPC title
with air or gas present as such · CPC title
- A62D1/0071Primary
Foams · CPC title
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Frequently asked questions
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- What does patent US12290711B2 cover?
- The compound below may be used in a fire-fighting formulation along with a poly(glucoside)-alkane, a poly(ethylene glycol) monoalkyl ether, and water. The value n is 2 or 3, R is a C3-C9 alkylene group, X is —O— or —N(COCH 3 )—, and c is a positive integer. It may be made by reacting a polysaccharide with acetic anhydride, propargyl alcohol, and an azidoalkyltris(trimethylsiloxy)silane or an az…
- 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 May 06 2025 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).