Nisshinbo Industries, Inc.

Nisshinbo Chemical Inc.

Kimiyo Banno

Takaya Sato

Gen Masuda

Kenichi Yanagisawa

Kanako Yuyama

Kentaro Takagi

Disclosed is a carboxy group-containing aqueous resin composition containing a carboxy group-containing aqueous resin and a polycarbodiimide compound (X) represented by the following general formula (1): wherein Rrepresents a residue obtained by removing a functional group capable of reacting with an isocyanate from a hydrophilic compound having the functional group capable of reacting with an isocyanate; Rrepresents a divalent residue obtained by removing isocyanate groups from a diisocyanate compound; Rrepresents a divalent residue obtained by removing hydroxy groups from a glycol compound; X represents a group to be formed through a reaction between the hydrophilic compound and the diisocyanate compound; n1 represents a number of 1 to 10; n2 represents a number of 1 to 10; m represents a number of 1 to 5; and plural R's may be the same or different and plural R's may be the same or different.

Carboxyl-group-containing aqueous resin composition and method for manufacturing polycarbodiimide compound

A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte having an excellent safety and electrical conductivity and also a broad potential window to be obtained. In formula (1), Rto Rare each independently an alkyl group of 1 to 5 carbons or a substituent having a reactive unsaturated bond and any two from among Rto Rmay together form a ring, and Ris methyl, ethyl or a substituent having a reactive unsaturated bond, with the proviso that at least one of Rto Ris a substituent having a reactive unsaturated bond. X is a monovalent anion, the letter m is an integer from 1 to 8, and the letter n is an integer from 1 to 4.

Composition for polyelectrolytes, polyelectrolytes, electrical double layer capacitors and nonaqueous electrolyte secondary cells

An electrolyte composition and a solid polymer electrolyte for electrical double-layer capacitors are endowed with high ionic conductivity. The invention is also directed at a polar electrode composition and a polar electrode having excellent binder capabilities which are able to strongly bond a high surface area material such as activated carbon and an electrically conductive material to a current collector, and which also have shape stability. A high-performance electrical double-layer capacitor arrived at using the above compositions and components is additionally disclosed.

Electrolyte composition for electric double-layer capacitor, solid polymer electrolyte, composition for polarized electrode, polarizable electrode, and electric double-layer capacitor

A pregel composition is added to an organic electrolyte solution of an electrolyte salt in a nonaqueous solvent for causing the solution to gel and form a polymer gel electrolyte. The pregel composition is dehydrated by azeotropic distillation and has a moisture content of not more than 1,000 ppm as determined by Karl Fischer titration. Polymer gel electrolytes prepared with such a pregel composition have a good electrochemical stability, and are thus highly suitable for use in secondary cells and electrical double-layer capacitors.

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Chiba, Japan

Kimiyo Banno