Stampable sheet
US-2015292146-A1 · Oct 15, 2015 · US
Filament web type precursor fabric for activated carbon fiber fabric and method for preparing same
US10596545B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10596545-B2 |
| Application number | US-201515321258-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 11, 2015 |
| Priority date | Jun 24, 2014 |
| Publication date | Mar 24, 2020 |
| Grant date | Mar 24, 2020 |
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- Title
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- Abstract
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Abstract
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A filament web type precursor fabric for an activated carbon fiber fabric is produced by (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The filament web type precursor fabric has a structure in which the precursor filaments for preparing activated carbon fiber are spread in a web form and entangled with each other, and has a weight per unit area ranging from 50 to 500 g/m 2 . An activated carbon fiber fabric manufactured by activating the filament web type precursor fabric contains yarns with improved and uniform durability and crystallinity, and an shows improved performance of forming microfine pores having a diameter of 1 to 2 nm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for preparing a filament web precursor fabric for an activated carbon fiber fabric, comprising: (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other to obtain the filament web precursor fabric, wherein the spreading of (i) is carried out by passing a bundle of the precursor filaments for preparing activated carbon fiber between tension bars while altering tension applied to the precursor filaments for preparing activated carbon fiber, wherein the altering tension is a repetitive increasing and decreasing the tension; and wherein the punching of (ii) is carried out in an air-punching mode. 2. The method according to claim 1 , wherein 1.2 to 5.0 fold overfeed rate is endowed to the precursor filaments for preparing activated carbon fiber passing between the tension bars. 3. The method according to claim 1 , wherein the precursor filament web precursor fabric obtained in (b) has a weight per unit area ranging from 50 to 500 g/m 2 . 4. The method according to claim 1 , wherein the precursor filaments for preparing activated carbon fiber are polyacrylonitrile filaments.
Assignees
Inventors
Classifications
Carbon · CPC title
Fibres or filaments (fibres or filaments in the form of membranes B01J20/28038; B01J20/28007 takes precedence) · CPC title
Separating or spreading · CPC title
by fluid jet · CPC title
by decomposition of organic filaments · CPC title
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- What does patent US10596545B2 cover?
- A filament web type precursor fabric for an activated carbon fiber fabric is produced by (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The filament web type precurso…
- Who is the assignee on this patent?
- Kolon Inc
- What technology area does this patent fall under?
- Primary CPC classification B01J20/20. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 24 2020 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).