The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2013
Filed:
Nov. 21, 2006
Jean-yves Sanchez, Saint Ismier, FR;
Crístina Iojoiu, Grenoble, FR;
Régis Mercier, Irigny, FR;
Nadia El Kissi, Grenoble, FR;
France Chabert, Paris, FR;
Jérèmie Salomon, Ampuis, FR;
Jean-Yves Sanchez, Saint Ismier, FR;
Crístina Iojoiu, Grenoble, FR;
Régis Mercier, Irigny, FR;
Nadia El Kissi, Grenoble, FR;
France Chabert, Paris, FR;
Jérèmie Salomon, Ampuis, FR;
Solvay SA, Brussels, BE;
Abstract
The invention relates to the preparation of a crosslinked polymeric film bearing ionic groupings. The process consists in extruding a material comprising at least one prepolymer, in polymerizing said material after extrusion, and in subjecting the extruded material to a chemical reaction for grafting ionic groupings. The prepolymer comprises repeating units each comprising at least one aromatic group GA and at least one functional group GF; it bears at least one group GP which is polymerizable thermally at a temperature greater than the extrusion temperature, or photochemically, and also at least one reactive group GR which allows the grafting of ionic groupings. The films are useful as a membrane for fuel cells or electrodialysis, as an electrolyte of a lithium battery, of a supercapacitor or of an electrochromic device, or as an ion exchange membrane.