F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 3/16 (2006.01) B01D 46/10 (2006.01)
Patent
CA 2404497
The invention provides a filter treated with a humectant which may optionally be in combination with a surfactant. The treatment may also include a water soluble rheology modifier to alter the viscosity of water drawn onto the filter by the humectant. A tackifier may also be added. The invention also provides compositions suitable for application to a filter to carry out the treatment. The invention provides a method of "upgrading" a filter using the treatments and compositions described.
L'invention concerne un filtre doté d'un humidifiant que l'on peut éventuellement associer à un surfactant. Ce traitement peut également comporter un modificateur de rhéologie soluble dans l'eau pour altérer la viscosité de l'eau attirée sur le filtre par l'humidifiant. On peut également ajouter un agent poisseux. L'invention concerne également des compositions applicables sur un filtre et permettant de mettre en oeuvre le traitement. Enfin, l'invention concerne un procédé permettant <= d'améliorer >= un filtre au moyen des traitements et compositions décrits ci-dessus.
Kritzler Steven
Blake Cassels & Graydon Llp
Novapharm Research (australia) Pty Ltd.
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