Antifreeze for fire sprinkler systems
AssigneeTyco Fire Products LP
InventorsSean E. Cutting, Manuel R. Silva, Jr., Barbara L. Churchill, Krista N. Brouwer
Life of this patent
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Abstract
Antifreezes, which include glycerol or a mixture of alkylene glycol and glycerol, water and an organic acid salt, are provided. Exemplary antifreezes include at least about 45 vol. % water, greater than 48 to about 55 vol. % glycerol, 0.1 to 1.75 wt. % of a salt of an organic acid having one or more carboxylic acid groups, and optionally, one or more buffers. Wet sprinkler systems containing the antifreeze, methods of controlling a fire using the antifreeze and methods of preventing a wet sprinkler system from freezing are also provided.
Claims5
An antifreeze comprising:
- at least about 45 vol. % water;
- about 5 to 20 vol. % alkylene glycol and about 30 to 50 vol. % glycerol;
- wherein a total amount of alkylene glycol and glycerol is about 40 to 55 vol. %;
- 0.1 to 1.75 wt. % of a salt of an organic acid having one or more carboxylic acid groups;
- and optionally, one or more buffers.
Dependencies are inferred from the claim text.