Fire retardant compounds

Patent metadata

Field	Value
Publication number	US-10479747-B2
Application number	US-201816126746-A
Country	US
Kind code	B2
Filing date	Sep 10, 2018
Priority date	Jun 29, 2015
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

Compounds with fire extinguishing properties having the formula:

wherein R 1 is —CR 5 R 6 R 7 or —CR 5 R 6 CR 8 R 9 R 10 as well as fire extinguishing units including one or more of the compounds.

First claim

What is claimed is:

1. A fire extinguishing unit comprising a container and delivery system, the container containing a fire extinguishing compound having the formula:
(F 3 C)C(R 2 )=CR 3 R 4

wherein
R 2 is iodo and R 3 and R 4 are both fluoro or R 3 is hydrogen and R 4 is fluoro;
R 2 is bromo, R 3 is bromo and R 4 is iodo; or
R 2 is fluoro, R 3 is chloro, and R 4 is iodo.

2. A fire extinguishing unit according to claim 1 , wherein R 2 is iodo and R 3 and R 4 are both fluoro or R 3 is hydrogen and R 4 is fluoro.

3. The fire extinguishing unit of claim 1 wherein the fire extinguishing compound is 2-iodo-1,1,3,3,3-pentafluoropropene.

4. A fire extinguishing unit according to claim 1 , wherein R 2 is bromo, R 3 is bromo and R 4 is iodo.

5. A fire extinguishing according to claim 1 , wherein R 2 is fluoro, R 3 is chloro, and R 4 is iodo.

6. A fire extinguishing unit comprising a container and delivery system, the container containing a fire extinguishing compound having the formula:
(F 3 C)C(R 5 )(R 6 )C(R 2 )=CR 3 R 4

wherein
R 5 and R 6 are independently hydrogen or halogen;
R 2 is chloro, or iodo; and R 3 and R 4 are defined as follows:
R 3 is iodo and R 4 is hydrogen;
R 3 and R 4 are both fluoro; or
R 3 and R 4 are both hydrogen.

7. A fire extinguishing unit according to claim 6 wherein R 3 is iodo and R 4 is hydrogen.

8. A fire extinguishing unit according to claim 6 wherein R 3 and R 4 are both fluoro.

9. A fire extinguishing unit according to claim 6 wherein R 3 and R 4 are both hydrogen.

10. The fire extinguishing unit of claim 6 wherein R 5 and R 6 are each halogen.

11. The fire extinguishing unit of claim 6 wherein R 5 and R 6 are each F.

12. A fire extinguishing unit comprising a container and delivery system, the container containing a fire extinguishing compound selected from the group consisting of 2,3-dibromo-4,4,4-trifluoro-1-butene; 2-iodoperfluoro-1-butene; 2-bromoperfluoro-1-butene; 3-iodo-3,4,4,4-tetrafluoro-1-butene; 1-iodo-4,4,4-trifluoro-1-butene; 1-bromo-4,4,4-trifluoro-1-butene; 2-chloro-3,3,4,4,4-pentafluoro-1-butene; and combinations thereof.

13. A method for extinguishing a fire, the method comprising directing a compound of Formula I towards a fire, wherein Formula I is
(F 3 C)C(R 2 )=CR 3 R 4

wherein
R 2 is iodo and R 3 and R 4 are both fluoro or R 3 is hydrogen and R 4 is fluoro;
R 2 is bromo, R 3 is bromo and R 4 is iodo; or
R 2 is fluoro, R 3 is chloro, and R 4 is iodo.

14. A method according to claim 13 wherein the fire extinguishing compound is 2 iodo-1,1,3,3,3-pentafluoropropene.

15. A method for extinguishing a fire, the method comprising directing a compound of Formula I towards a fire, wherein Formula I is
(F 3 C)C(R 5 )(R 6 )C(R 2 )=CR 3 R 4

wherein
R 5 and R 6 are independently hydrogen or halogen;
R 2 chloro, or iodo; and R 3 and R 4 are defined as follows:
R 3 is iodo and R 4 is hydrogen;
R 3 and R 4 are both fluoro; or
R 3 and R 4 are both hydrogen.

16. A method for extinguishing a fire, the method comprising directing a fire extinguishing compound towards a fire, wherein the fire extinguishing compound is selected from the group consisting of 2,3-dibromo-4,4,4-trifluoro-1-butene; 2-iodoperfluoro-1-butene; 2-bromoperfluoro-1-butene; 3-iodo-3,4,4,4-tetrafluoro-1-butene; 1-iodo-4,4,4-trifluoro-1-butene; 1-bromo-4,4,4-trifluoro-1-butene; 2-chloro-3,3,4,4,4-pentafluoro-1-butene; and combinations thereof.

Assignees

• Boeing Co

Inventors

• Gregersen Kimberly-Alice D
• Moreland James Craig
• Badaeva Ekaterina A
• Zweig Andrew M

Classifications

• A62C3/08

  in aircraft {(A62C3/0207 takes precedence)} · CPC title

• C09K21/08

  containing halogen · CPC title

• A62C99/0018

  using gases or vapours that do not support combustion, e.g. steam, carbon dioxide · CPC title

• C07C21/18 Primary

  containing fluorine · CPC title

• C07C21/14

  containing bromine · CPC title