# US 2020/0286641 A1 · Electrically conductive composition and biosensor

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- Number: US 2020/0286641 A1
- Document ID: US20200286641A1
- Status: Published application
- Kind: A1
- Application number: 16/646,261
- Filed: 2018-06-25
- Published: 2020-09-10
- Earliest claimed: 2017-09-11
- Assignees: Nitto Denko Corporation
- Applicants: Nitto Denko Corporation
- Inventors: Eiji TOYODA; Naoya SUGIMOTO; Ryoma YOSHIOKA
- Web page: https://patentgrep.com/patent/US20200286641A1

## CPC

- C08G 61/126: {with a five-membered ring containing one sulfur atom in the ring}
- H01B 1/20: Conductive material dispersed in non-conductive organic material {(organic macromolecular compounds or compositions C08)}
- A61B 5/256: Wearable electrodes, e.g. having straps or bands
- A61B 5/257: using adhesive means, e.g. adhesive pads or tapes
- A61B 5/268: containing conductive polymers, e.g. PEDOT:PSS polymers
- A61B 5/28: for electrocardiography [ECG]
- C08K 5/053: Polyhydroxylic alcohols
- C08L 101/12: characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00)
- C08L 101/14: the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
- C08G 2261/11: Homopolymers
- C08G 2261/1424: containing ether groups, including alkoxy
- C08G 2261/3223: containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
- C08G 2261/794: with polymeric dopants
- C08G 2261/94: Applications in sensors, e.g. biosensors
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

The electrically conductive composition includes an electrical conductive polymer, a binder resin, and at least one of a cross-linking agent and a plasticizer.

## Claims

### Claim 1

An electrically conductive composition comprising:
an electrical conductive polymer,
a binder resin, and
at least one of the cross-linking agent and plasticizer.

### Claim 2 (depends on 1)

The electrically conductive composition according to claim 1, comprising both of the cross-linking agent and the plasticizer.

### Claim 3 (depends on 1)

The electrically conductive composition according to claim 1, wherein
the binder resin is a water-soluble polymer.

### Claim 4 (depends on 1)

The electrically conductive composition according to claim 1, wherein
the cross-linking agent contains at least one selected from the group consisting of a zirconium compound, an isocyanate compound, and an aldehyde compound.

### Claim 5 (depends on 1)

The electrically conductive composition according to claim 1, wherein
the plasticizer contains a polyol compound.

### Claim 6 (depends on 1)

A biosensor comprising:
a wire layer,
a probe that makes contact with a surface of a living body, and
a connector that electrically connects the wire layer with the probe,
wherein the connector is prepared from the electrically conductive composition according to claim 1.