High-molecular gelling agent precursor for electrolyte

Details High-molecular gelling agent precursor for electrolyte High-molecular gelling agent precursor for electrolyte

2005-11-22

2005-11-22

Cheung, William K. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S319000, C526S291000, C526S292500, C526S317100, C526S340000, C526S351000, C526S352000, C526S348100

Reexamination Certificate

active

06967232

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.

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