Patent · US Active

Hydrophylic semiconducting single-walled carbon nanotube inks

US11104815B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

National Research Council of Canada · CA

Inventors

Jianfu Ding · Ottawa, CA
Zhao Li · Mississauga, CA
Patrick Roland Lucien Malenfant · Ottawa, CA

Key dates

Filing date	Jun 22, 2020
Grant date	Aug 31, 2021
Priority date	—
Expiry date	Jun 22, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A single-walled carbon nanotube composition includes single-walled carbon nanotubes substantially enriched in semiconducting single-walled carbon nanotubes in association with a polymer having one or more oligoether side groups. The oligoether side groups render the composition dispersable in polar organic solvents, for example alkyl carbitols, permitting formulation of ink compositions containing single-walled carbon nanotubes substantially enriched in semiconducting single-walled carbon nanotubes. Such ink compositions may be readily printed using common printing methods, such as inkjet, flexography and gravure printing.

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