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US 6,015,838 AGranted
Aqueous film-forming foam compositions
Assignee3M Innovative Properties Company
InventorsRichard M. Stern, Wei-Qiang Fan
Life of this patent
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Abstract
This invention provides aqueous film-forming foamable (AFFF) compositions comprising one or more environmentally-friendly .alpha.-branched fluoroalkylcarbonyl group-containing surfactants.
Claims5
An aqueous film-forming foamable composition comprising one or more surfactants of the formula ##STR58## wherein n is between 4 and about 18 inclusive;
- m is between 0 and about 9 inclusive;
- k is between 2 and 6 inclusive;
- and
- R" is a lower alkyl group having from 1 to 4 carbon atoms or may combine with the depicted nitrogen atom to from a pyridinyl, piperidino or morpholino heterocyclic ring.
1 more element
Dependencies are inferred from the claim text.