C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/22 (2006.01) C08F 8/36 (2006.01) C08J 3/28 (2006.01) C08L 23/26 (2006.01) C08L 27/22 (2006.01) H01M 2/16 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01)
Patent
CA 2362853
The present invention relates to a sulfonated polymer membrane and to a process for the preparation thereof. According to the process, a polymer film is irradiated, and the irradiated polymer film is sulfonated in order to link sulfonic acid groups thereto. According to the invention, the sulfonation is continued until the total concentration of sulfonic acid groups in the membrane is 0.4 - 3.0 meq/g and they are homogeneously distributed in the membrane material in such a manner that their concentration in the middle of the membrane is at minimum 0.2 meq/g. With the help of the invention, it is possible by a rapid and simple process to prepare membranes the chemical and mechanical properties of which can be regulated by means of the selection of the initial film, by irradiation and by the sulfonation process.
La présente invention se rapporte à une membrane polymère sulfonée et à un procédé de préparation d'une telle membrane. Conformément audit procédé, un film polymère est irradié puis ledit film polymère irradié est sulfoné de manière à fixer les groupes d'acide sulfonique. Conformément à cette invention, la sulfonation est effectuée jusqu'à ce que la concentration totale des groupes d'acide sulfonique dans la membrane soit comprise entre 0,4 et 3,0 meq/g et jusqu'à ce qu'ils soient répartis de manière homogène dans le matériau de la membrane de sorte que leur concentration au milieu de la membrane est au minimum 0,2 meq/g. Cette invention permet de préparer, selon un procédé simple et rapide, des membranes dont les caractéristiques chimiques et mécaniques peuvent être régulées par sélection du film initial, par irradiation et par le processus de sulfonation.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Paronen Mikael
LandOfFree
Polymer membrane and a process for the production thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer membrane and a process for the production thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer membrane and a process for the production thereof will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1672593