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:
Nov. 22, 2005
Filed:
Oct. 01, 2002
Minoru Takizawa, Tokyo, JP;
Seiji Doi, Tokyo, JP;
Chiaki Iwakura, Osaka, JP;
Hiroshi Inoue, Osaka, JP;
Naoji Furukawa, Kyoto, JP;
Shinji Nohara, Osaka, JP;
Yoshifumi Sugito, Tokyo, JP;
Naomi Oguma, Tokyo, JP;
Sachio Yoshikawa, Tokyo, JP;
Michiei Nakamura, Tokyo, JP;
Minoru Takizawa, Tokyo, JP;
Seiji Doi, Tokyo, JP;
Chiaki Iwakura, Osaka, JP;
Hiroshi Inoue, Osaka, JP;
Naoji Furukawa, Kyoto, JP;
Shinji Nohara, Osaka, JP;
Yoshifumi Sugito, Tokyo, JP;
Naomi Oguma, Tokyo, JP;
Sachio Yoshikawa, Tokyo, JP;
Michiei Nakamura, Tokyo, JP;
Dainichiseika Color & Chemicals Mfg., Co., Ltd., Tokyo, JP;
Abstract
A high-molecular gelling agent precursor for an electrolyte comprises a copolymer formed of (A) a hydrophobic monomer having a hydrophobic group, which forms a carboxyl group upon saponification, and (B) a hydrophobic polyfunctional monomer. The saponification product of the copolymer has property to gel the electrolyte. A high-molecular gelling agent for the electrolyte is produced by saponifying the precursor with a saponifying agent selected from the group consisting of acids and alkalis while using a reaction medium selected from the group consisting of water and hydrophobic organic solvents.