Carbon-fiber-reinforced molded article
US-2019358930-A1 · Nov 28, 2019 · US
Composite material, and prepreg using same
US11898305B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11898305-B2 |
| Application number | US-202217962615-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2022 |
| Priority date | Feb 13, 2017 |
| Publication date | Feb 13, 2024 |
| Grant date | Feb 13, 2024 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method for producing a composite material, includes: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at a constant depth inside the dispersion at a traveling speed of 1 to 20 m/min, such that the carbon nanotubes in the dispersion are adhered to respective surfaces of the carbon fibers; and applying a sizing agent to cover at least a part of the respective surfaces.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a composite material, comprising: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at a constant depth inside the dispersion at a traveling speed of 1 to 20 m/min, such that the carbon nanotubes in the dispersion are adhered to respective surfaces of the carbon fibers; and applying a sizing agent to cover at least a part of the respective surfaces. 2. The method according to claim 1 , wherein in the immersing of the carbon fiber bundle, the carbon fiber bundle has a shape of a strip in which 3 to 30 fibers of the carbon fibers are piled in a thickness direction.
Assignees
Inventors
Classifications
- D06M11/74Primary
with carbon or graphite; with carbides; with graphitic acids or their salts · CPC title
- C08J5/248Primary
using pre-treated fibres · CPC title
Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof · CPC title
with polyhydric phenols · CPC title
Characterised by the use of epoxy resins; Derivatives of epoxy resins · CPC title
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- What does patent US11898305B2 cover?
- A method for producing a composite material, includes: immersing a carbon fiber bundle, including continuous carbon fibers, in a dispersion in which carbon nanotubes are dispersed in water, alcohol, or organic solvent; applying a tensile force to the carbon fibers, which are linearly arranged, using flat rollers; moving the carbon fibers linearly, under the tensile force by the flat rollers, at…
- Who is the assignee on this patent?
- Nitta Corp
- What technology area does this patent fall under?
- Primary CPC classification D06M11/74. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Feb 13 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).