Method for manufacturing a polyacrylonitrile-sulfur composite material
US-10096834-B2 · Oct 9, 2018 · US
Production method of sulfur-modified polyacrylonitrile
US2022340693A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022340693-A1 |
| Application number | US-202017763839-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 14, 2020 |
| Priority date | Sep 27, 2019 |
| Publication date | Oct 27, 2022 |
| Grant date | — |
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- Title
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Abstract
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The present invention provides a method of producing sulfur-modified polyacrylonitrile, including: a step (1) of heating polyacrylonitrile and elemental sulfur in a rotating-type heating container including a discharge pipe and a sulfur vapor recovery unit while rotating the rotating-type heating container; a step (2) of liquefying a sulfur vapor by the sulfur vapor recovery unit while discharging hydrogen sulfide generated in the heating step; and a step (3) of returning the liquefied sulfur to a mixture of the sulfur and the polyacrylonitrile of the step (1).
First claim
Opening claim text (preview).
1 . A method of producing sulfur-modified polyacrylonitrile, comprising: a step (1) of heating polyacrylonitrile and elemental sulfur in a rotating-type heating container comprising a discharge pipe and a sulfur vapor recovery unit while rotating the rotating-type heating container; a step (2) of liquefying a sulfur vapor by the sulfur vapor recovery unit while discharging hydrogen sulfide generated in the heating step; and a step (3) of returning the liquefied sulfur to a mixture of the sulfur and the polyacrylonitrile of the step (1). 2 . The method of producing sulfur-modified polyacrylonitrile according to claim 1 , wherein a ratio between the polyacrylonitrile and the elemental sulfur is as follows: 100 parts by mass to 1,500 parts by mass of the elemental sulfur with respect to 100 parts by mass of the polyacrylonitrile. 3 . The method of producing sulfur-modified polyacrylonitrile according to claim 1 , wherein the polyacrylonitrile and the elemental sulfur each have a particle diameter of from 1 μm to 1,000 μm in terms of an average particle diameter. 4 . The method of producing sulfur-modified polyacrylonitrile according to claim 1 , wherein the polyacrylonitrile and the elemental sulfur each have a particle diameter of from 1 μm to 1,000 μm in terms of an average particle diameter.
Assignees
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Classifications
specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation · CPC title
Carbon pastes or blends; Binders or additives therein · CPC title
Homopolymers or copolymers of acrylonitrile (C08L55/02 takes precedence) · CPC title
specially adapted for electrodes (carbonisation or activation of carbon for the manufacture of electrodes H01G11/34) · CPC title
- C08F20/44Primary
Acrylonitrile · CPC title
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- What does patent US2022340693A1 cover?
- The present invention provides a method of producing sulfur-modified polyacrylonitrile, including: a step (1) of heating polyacrylonitrile and elemental sulfur in a rotating-type heating container including a discharge pipe and a sulfur vapor recovery unit while rotating the rotating-type heating container; a step (2) of liquefying a sulfur vapor by the sulfur vapor recovery unit while discharg…
- Who is the assignee on this patent?
- Adeka Corp
- What technology area does this patent fall under?
- Primary CPC classification C08F20/44. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 27 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).