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:
Apr. 28, 2009
Filed:
Apr. 08, 2005
Nawal Kishor Mal, Tokyo, JP;
Koichiro Hinokuma, Kanagawa, JP;
Kazuhiro Noda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Hybrid silica polymer applicable to electrochemical elements and a method for economical production thereof, the former excelling in thermal stability, mechanical stability, solvent resistance, and proton conductivity at low humidity is provided. The method includes a step of heating a mixture of 3-mercaptopropyltrialkoxylsilane, surfactant, water, and base or acid for their reaction with one another at 25 to 180° C., thereby providing a hybrid thiol group-containing silica polymer, and an optional step of oxidizing said hybrid thiol group-containing silica polymer with a peroxide, thereby giving a hybrid silica polymer which is composed of hybrid (thiol group-containing and/or sulfonic group-containing) silica polymer. The resulting silica polymer is used as a proton conducting material for electrochemical elements such as fuel cells, capacitors, and electrolytic cells.