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. 15, 2005
Filed:
Dec. 02, 2002
Paul-etienne Harvey, St. Hubert, CA;
Jean-yves Sanchez, Saint-Ismier, FR;
Fannie Alloin, Grenoble, FR;
Paul-Etienne Harvey, St. Hubert, CA;
Jean-Yves Sanchez, Saint-Ismier, FR;
Fannie Alloin, Grenoble, FR;
Hydro-Quebec, Montreal, CA;
Abstract
The invention concerns a copolymer of ethylene oxide and at least one substituted oxirane carrying a cross-linkable function. The copolymer comprises ethylene oxide, —O—CH—CHR— units in which R is a substituent containing a reactive function which is cross-linkable by free radical process, and possibly —O—CH—CHR'— units in which R′ is a substituent containing no reactive function which is cross-linkable by means of a free radical process, It is characterized by an excellent polydispersity index I=M/Mn and a random distribution of the different monomer units. The copolymer is prepared by an anionic copolymerization process. The copolymer is useful for preparing a solid electrolyte having good mechanical properties, a good cationic conductivity and a good chemical compatibility with the electrodes of a generator operating with alkali metals such as lithium and sodium.