Fire-fighting foam concentrate
AssigneeTyco Fire Products LP
InventorsJoAnna M. Monfils, John P. Libal
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Abstract
An aqueous concentrate, which can be diluted with an aqueous diluent to form a foam precursor composition, is provided. The foam precursor composition may be aerated to form a firefighting foam. The present aqueous firefighting concentrates include a surfactant component, which includes one or more of an anionic surfactant, a zwitterionic surfactant and a nonionic surfactant and an aliphatic alcohol-based component. The aliphatic alcohol-based component typically includes at least two alcohols and/or alcohol ethoxylates. The aqueous concentrates contain a substantial amount of water and typically are substantially free of any fluorinated compound.
Claims20
An aqueous fire-fighting foam concentrate comprising:
- a surfactant component comprising an anionic surfactant, a zwitterionic surfactant, optionally a nonionic surfactant, or a mixture of any two or more thereof;
- an aliphatic alcohol-based component comprising a C8-C14-aliphatic alcohol and an ethoxylate of a C10-C14-aliphatic alcohol having an average of no more than about 6 ethylene oxide units;
- and
- at least about 30 wt. % water.
An aqueous fire-fighting foam concentrate comprising:
- about 1-4 wt. % of a polysaccharide thickener comprising one or more of xanthan gum, welan gum, succinoglycan, and diutan gum;
- about 5-15 wt. % of a C8-C12-alkyl sulfate anionic surfactant;
- about 0-15 wt. % of a C8-C10-alkyl polyglycoside nonionic surfactant;
- about 0.5-5 wt. % of an aliphatic alcohol-based component comprising at least two of capryl alcohol, lauryl alcohol, and a lauryl alcohol ethoxylate having an average of about 1 to 4 ethylene oxide units;
- about 10-20 wt. % propylene glycol and butyl carbitol;
- and
- at least about 50 wt. % water;
- wherein the composition contains no more than 0.01 wt. % fluorinated compounds.
Dependencies are inferred from the claim text.