Oligomers terminated by perfluoroalkyl containing mercapto...

Details Oligomers terminated by perfluoroalkyl containing mercapto... Oligomers terminated by perfluoroalkyl containing mercapto...

C - Chemistry, Metallurgy

07

D

260/486, 31/6, 2

C07D 207/27 (2006.01) A62D 1/02 (2006.01) B01F 17/00 (2006.01) C08F 2/38 (2006.01) C11D 1/00 (2006.01)

Patent

CA 1142935

Abstract of the Disclosure The present invention relates to novel oligomers of the formula Image H, and mixtures thereof, wherein Rf is a perflouroalkyl group, E is a linkage group, Image repre- sents a hydrophilic monomer unit, Image 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 Image 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 contam- inated protein foams. The novel oligomers are further useful as surface tension depressants providing improved wetting, spreading and leveling properties in aqueous systems.

351048

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