Patent · US Active

Dispersion comprising carbon nanotubes and graphene platelets

US9868875B2 · kind B2 · utility

3Cited by

2References

20Claims

0Family size

Assignee

Future Carbon GmbH · DE

Inventors

Daniel Rudhardt · Cologne, DE
Thomas Buesgen · Leverkusen, DE
Stefanie Eiden · Leverkusen, DE
Diana Dimowa Landen · Leverkusen, DE
Gesa Behnken · Neunburg vorm Wald, DE

Key dates

Filing date	Aug 20, 2012
Grant date	Jan 16, 2018
Priority date	—
Expiry date	Jun 11, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2982
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A preferably aqueous dispersion comprises carbon nanotubes and graphene platelets, with the ratio by mass of carbon nanotubes to graphene platelets being situated within a range from ≧5:95 to ≦75:25. In a process for preparing a dispersion of this kind, carbon nanotubes and graphene platelets are combined so that the ratio by mass of carbon nanotubes to graphene platelets in the dispersion is in a range from ≧5:95 to ≦75:25. The dispersion can be used as a printing ink for producing electrically conductive films. The invention further provides an electrically conductive film comprising carbon nanotubes and graphene platelets, with the ratio by mass of carbon nanotubes to graphene platelets being situated within a range from ≧5:95 to ≦75:25.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.