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Method and apparatus for adjusting pitch material
US9677004B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9677004-B2 |
| Application number | US-201414539000-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2014 |
| Priority date | Nov 18, 2013 |
| Publication date | Jun 13, 2017 |
| Grant date | Jun 13, 2017 |
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Abstract
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A method for adjusting the softening point of a pitch material includes heating the pitch material to form molten pitch material, and rising the softening point of the pitch material by moving a plurality of movable members so that the movable members repetitively move at least some of the molten pitch material out of a liquid level of the molten pitch material and back to the molten pitch material.
First claim
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The invention claimed is: 1. A method for adjusting the softening point of a pitch material, the method comprising: heating the pitch material to form molten pitch material; and raising the softening point of the pitch material by rotating a plurality of disks about an axis extending through the center of each disk so that the disks repetitively move at least some of the molten pitch material out of a liquid level of the molten pitch material and back to the molten pitch material, wherein the method is performed in an open atmosphere. 2. The method according to claim 1 , wherein the disks are plate-like, and each disk is moved in a direction intersecting a thickness direction of the disk. 3. The method according to claim 1 , wherein the disks are rotated about the axis extending along the liquid level of the molten pitch material. 4. The method according to claim 3 , wherein the disks are arranged parallel to each other on the axis.
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- What does patent US9677004B2 cover?
- A method for adjusting the softening point of a pitch material includes heating the pitch material to form molten pitch material, and rising the softening point of the pitch material by moving a plurality of movable members so that the movable members repetitively move at least some of the molten pitch material out of a liquid level of the molten pitch material and back to the molten pitch mate…
- Who is the assignee on this patent?
- Toyota Boshoku Kk
- What technology area does this patent fall under?
- Primary CPC classification C10C3/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 13 2017 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).