Fire extinguishing compositions, systems and methods
AssigneeHoneywell International Inc.
InventorsRobert Gerard RICHARD, Rajiv Ratna SINGH, Ryan HULSE
Life of this patent
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Abstract
Disclosed are fire extinguishants comprising from about 20% to about 80% by weight of 1-chloro-3,3,3-trifluoropropene (HFO-1233zd) and from about 20% to about 80% by weight of 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone (FK5-1-12), and to methods, systems and containers which use the fire extinguishants.
Claims20
A fire extinguishant comprising from about 40% to about 60% by weight of trans-1-chloro-3,3,3-trifluoropropene (transHFO-1233zd) and from about 40% to about 60% by weight of 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone (FK5-1-12), wherein the fire extinguishant has a Class A ISO 14520 MEC of about 6% or less and/or a Class B ISO 14520 MEC of about 6% or less.
A fire extinguishant comprising about 50% by weight of trans-1-chloro-3,3,3-trifluoropropene (transHFO-1233zd) and about 50% by weight of 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone (FK5-1-12), wherein the fire extinguishant has a Class A ISO 14520 MEC of about 6% or less and a Class B ISO 14520 MEC of about 6% or less.
A method of extinguishing a flame comprising:
- (a) providing a fire extinguishant from about 40% to about 60% by weight of trans 1-chloro-3,3,3-trifluoropropene (transHFO-1233zd) and from about 40% to about 60% by weight of 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone (FK5-1-12), wherein the fire extinguishant has a Class A ISO 14520 MEC of about 6% or less and a Class B ISO 14520 MEC of about 6% or less;
- and
- (b) applying said fire extinguishant to the flame.
Dependencies are inferred from the claim text.