Fire-fighting foam concentrate with silicone surfactant
AssigneeTyco Fire Products LP
InventorMichelle Hu
Life of this patent
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Abstract
An aqueous composition, which can be diluted with an aqueous diluent to provide a foam precursor composition, is provided. The foam precursor composition can be aerated to form a firefighting foam. The present aqueous firefighting compositions include a surfactant mixture containing a siloxane-based surfactant together with one or more of a nonionic surfactant, an anionic surfactant, and a zwitterionic surfactant. The aqueous firefighting compositions also include a polysaccharide thickener and an organic solvent, such as an alkylene glycol, glycerol and/or a glycol ether.
Claims21
An aqueous firefighting foam composition comprising:
- a) a surfactant mixture comprising a hydrocarbon nonionic surfactant, an anionic surfactant, and a zwitterionic surfactant;
- b) polyethyleneglycol-4 dimethicone;
- c) an organic solvent comprising one or more of an alkylene glycol, glycerol, and a glycol ether;
- d) at least about 60 wt. % water;
- and
- e) a polysaccharide thickener.
An aqueous firefighting composition comprising:
- a) a surfactant mixture comprising one or more of an alkylpolyglycoside surfactant, an alkyl sulfate and/or alkyl sulfonate anionic surfactant, and a zwitterionic surfactant;
- b) polyethyleneglycol-4 dimethicone;
- c) about 5-25 wt. % solvent comprising one or more of an alkylene glycol, glycerol and a glycol ether;
- d) at least about 60 wt. % water;
- and
- e) a polysaccharide thickener.
Dependencies are inferred from the claim text.