Protein hydrolyzate compositions for fire fighting containing pe

Details Protein hydrolyzate compositions for fire fighting containing pe Protein hydrolyzate compositions for fire fighting containing pe

1980-03-13

1984-07-17

Jiles, Henry R.

Compositions

Fire-extinguishing

Foam-stabilizant or colloid-stabilizant containing

252 3, 546336, 548550, 548551, A62D 100, C07D21170, C07D21182, C07D21356

Patent

active

044604807

ABSTRACT:
The present invention relates to novel oligomers of the formula R.sub.f --E--S--M.sub.1 ].sub.x [M.sub.2 ].sub.y H, and mixutes thereof, wherein R.sub.f is a perfluoroalkyl group, E is a linkage group, --M.sub.1 -- represents a hydrophilic monomer unit, --M.sub.2 -- represents a hydrophobic monomer unit, x and y represent the number of monomer units present in the novel oligomers. The sum of x and y is between 4 and 500 and x/(x+y) is between 1 and 0.5. The novel oligomers are useful as additives in protein foam type fire fighting compositions improving foam expansion, foam drainage and extinguishing times and reducing flammability of hydrocarbon contaminated protein foams. The novel oligomers are further useful as surface tension depressants providing improved wetting, spreading and leveling properties in aqueous systems.

REFERENCES:
patent: 2956947 (1960-10-01), Carter et al.

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