Carbon nanotube film and method for producing same

US10207929B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10207929-B2
Application numberUS-201515538372-A
CountryUS
Kind codeB2
Filing dateDec 24, 2015
Priority dateDec 25, 2014
Publication dateFeb 19, 2019
Grant dateFeb 19, 2019

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A carbon nanotube film includes an assembly of a plurality of carbon nanotubes, wherein the plurality of carbon nanotubes includes one or more carbon nanotubes having at least partially collapsed structures. A method for producing a carbon nanotube film includes forming a carbon nanotube film by removing a solvent from a carbon nanotube dispersion liquid containing the solvent, a dispersant, and a plurality of carbon nanotubes including one or more carbon nanotubes having at least partially collapsed structures.

First claim

Opening claim text (preview).

The invention claimed is: 1. A carbon nanotube film comprising: an assembly of a plurality of carbon nanotubes, and having a film surface glossiness at 60° of at least 5 and no greater than 50, wherein the plurality of carbon nanotubes includes one or more carbon nanotubes having at least partially collapsed structures. 2. The carbon nanotube film of claim 1 , wherein the one or more carbon nanotubes having at least partially collapsed structures are present in a proportion of at least 5 in 100 carbon nanotubes. 3. The carbon nanotube film of claim 1 , wherein the plurality of carbon nanotubes has a BET specific surface area of at least 600 m 2 /g. 4. A method for producing the carbon nanotube film according to claim 1 , comprising forming a carbon nanotube film by removing a solvent from a carbon nanotube dispersion liquid containing the solvent, a dispersant, and a plurality of carbon nanotubes including one or more carbon nanotubes having at least partially collapsed structures. 5. The method for producing a carbon nanotube film of claim 4 , further comprising preparing the carbon nanotube dispersion liquid by subjecting a coarse dispersion liquid containing the plurality of carbon nanotubes, the dispersant, and the solvent to dispersion treatment that brings about a cavitation effect or a crushing effect in order to disperse the plurality of carbon nanotubes.

Assignees

Inventors

Classifications

  • Apparatus or processes specially adapted for manufacturing conductors or cables · CPC title

  • Single bars, rods, wires, or strips · CPC title

  • mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title

  • Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30 · CPC title

  • C01B32/166Primary

    in liquid phase · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10207929B2 cover?
A carbon nanotube film includes an assembly of a plurality of carbon nanotubes, wherein the plurality of carbon nanotubes includes one or more carbon nanotubes having at least partially collapsed structures. A method for producing a carbon nanotube film includes forming a carbon nanotube film by removing a solvent from a carbon nanotube dispersion liquid containing the solvent, a dispersant, an…
Who is the assignee on this patent?
Zeon Corp
What technology area does this patent fall under?
Primary CPC classification C01B32/166. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Feb 19 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).