C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/24 (2006.01) C08F 220/38 (2006.01)
Patent
CA 2678797
It has been discovered by in present invention that, compared with a fluorosurfactant having only one betaine group per molecule, a fluorosurfactant having a plurality of betaine groups per molecule is superior in its ability to undergo electrostatic interaction with other components of a fire fighting composition thereby improving the performance of the fire fighting composition. Previously known fluorosurfactants comprise only one betaine group per molecule. In contrast, the present invention provides for a fluorobetaine copolymer containing a plurality of betaine groups.
L'invention a permis de découvrir que, par rapport à un tensioactif fluoré comprenant un seul groupe bétaïne par molécule, un tensioactif fluoré comprenant plusieurs groupes bétaïne par molécule est plus apte à subir une interaction électrostatique avec d'autres composants d'une composition anti-incendie, ce qui permet d'améliorer les performances de ladite composition anti-incendie. Les tensioactifs fluorés connus comprennent uniquement un groupe bétaïne par molécule. Par opposition, l'invention permet d'obtenir un copolymère de bétaïne fluoré contenant plusieurs groupes bétaïne.
Deguerry Isabelle
Gamblin Guillaume
Pabon Martial Jean-Jacques
Severac Romain
E. I. Du Pont de Nemours And Company
Torys Llp
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