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Composition in gel form comprising carbon nanotube and ionic liquid and method for production thereof

外国特許コード F110005321
整理番号 E06301US
掲載日 2011年8月31日
出願国 アメリカ合衆国
出願番号 51729803
公報番号 20050156144
公報番号 7531114
出願日 平成15年10月15日(2003.10.15)
公報発行日 平成17年7月21日(2005.7.21)
公報発行日 平成21年5月12日(2009.5.12)
国際出願番号 JP2003013162
国際公開番号 WO2004037720
国際出願日 平成15年10月15日(2003.10.15)
国際公開日 平成16年5月6日(2004.5.6)
優先権データ
  • 特願2002-307754 (2002.10.23) JP
  • 2003WO-JP13162 (2003.10.15) WO
発明の名称 (英語) Composition in gel form comprising carbon nanotube and ionic liquid and method for production thereof
発明の概要(英語) (US7531114)
Disclosed is a novel technology, by which carbon nanotubes can be easily worked without degrading the characteristic properties thereof.
A gel composition including a carbon nanotube and an ionic liquid is produced by pulverizing, in the presence of the ionic liquid, the carbon nanotube by applying a shearing force thereto, and then, if needed, subjecting the product of the pulverization to centrifugal separation.
The gel composition exhibits an excellent workability and can be worked simply by forming a desired shape by subjecting the composition in a fluidized state to application of an external force by such an operation as a printing, coating, extrusion or injection operation, and then removing the ionic liquid with a solvent or an absorbent.
特許請求の範囲(英語) [claim1]
1. A gel composition formed by a method which comprises pulverizing carbon nanotubes by applying a shearing force to a mixture consisting of carbon nanotubes and an ionic liquid, wherein the ionic liquid is a salt which assumes a molten state at or very near room temperature.
[claim2]
2. The gel composition as claimed in claim 1, wherein the carbon nanotubes are single-walled carbon nanotubes.
[claim3]
3. The gel composition as claimed in claim 1, the method by which it is formed further comprising a step of subjecting the product of the pulverization to centrifugal separation.
[claim4]
4. The gel composition as claimed in claim 1, wherein the gel composition is capable of assuming a fluid state when an external force is applied.
[claim5]
5. A method for producing the gel composition of claim 1 consisting of carbon nanotubes and an ionic liquid, which comprises a step of pulverizing, in the presence of the ionic liquid, the carbon nanotubes by applying a shearing force thereto.
[claim6]
6. The method for producing the gel composition as claimed in claim 5, further comprising a step of subjecting the product of the pulverization to centrifugal separation.
[claim7]
7. A method for using the gel composition of claim 1, which comprises the step of forming a desired shape from said gel composition by subjecting the composition in a fluidized state to application of an external force by a printing, coating, extrusion or injection operation, and then a step of removing the ionic liquid from said gel composition by bringing said shape in contact with a solvent capable of dissolving the ionic liquid or an absorbent capable of absorbing the ionic liquid.
  • 発明者/出願人(英語)
  • FUKUSHIMA TAKANORI
  • OGAWA ATSUKO
  • AIDA TAKUZO
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • 252/502
  • 252/62.2
  • 252/500
  • 252/519.3
  • 264/299
  • 361/502
  • 361/503
  • 423/445.000B
  • 423/447.1
  • 423/447.3
  • 427/180
  • 428/323
  • 428/359
  • 428/408
  • 977/742
  • 977/750
参考情報 (研究プロジェクト等) ERATO AIDA Nanospace AREA
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