Dense packing particle size distribution for pdc cutters
US-2015375366-A1 · Dec 31, 2015 · US
Abrasive agent manufacturing method
US9388331B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9388331-B2 |
| Application number | US-201214369915-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 14, 2012 |
| Priority date | Dec 28, 2011 |
| Publication date | Jul 12, 2016 |
| Grant date | Jul 12, 2016 |
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- Title
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Abstract
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Provided is a method for manufacturing an abrasive agent including a dispersant and also including cerium oxide as a main abrasive material component. The method involves: a step for recovering an abrasive agent component by salting out a spent abrasive material slurry by using a cation of an element of the first Group or second Group with an ionic radius of 80 pm to 160 pm in six-coordinate conversion, and solid-liquid separating the cerium oxide by coagulation and sedimentation; and a step for adding a dispersant including an anionic polymer to the abrasive agent component after the recovery.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for manufacturing an abrasive agent comprising a dispersant and further including cerium oxide as a main abrasive material component, the method comprising: recovering an abrasive agent component by salting out a spent abrasive material slurry by using a cation which is at least one cation selected from the group consisting of a magnesium ion and a calcium ion, wherein said cation has an ionic radius of 80 pm to 160 pm in six-coordinate conversion, and solid-liquid separating the cerium oxide by coagulation and sedimentation; and adding a dispersant including an anionic polymer to the abrasive agent component after the recovery. 2. The method for manufacturing an abrasive agent according to claim 1 , wherein the cation has an ionic radius of 80 pm to 120 pm in six-coordinate conversion. 3. The method for manufacturing an abrasive agent according to claim 1 , wherein the dispersant is a polymer having a carboxyl group in a molecule. 4. The method for manufacturing an abrasive agent according to claim 3 , wherein the dispersant is an acrylic acid/maleic acid copolymer with a weight-average molecular weight (Mw) of 100 to 10,000. 5. The method for manufacturing an abrasive agent according to claim 1 , wherein the amount of the dispersant added is 0.05% by mass to 2% by mass with respect to a total amount of the abrasive agent.
Assignees
Inventors
Classifications
- C09K3/1409Primary
Abrasive particles per se (preparation of diamond C01B32/25) · CPC title
Aqueous liquid suspensions · CPC title
- C09K3/1472Primary
Non-aqueous liquid suspensions · CPC title
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- What does patent US9388331B2 cover?
- Provided is a method for manufacturing an abrasive agent including a dispersant and also including cerium oxide as a main abrasive material component. The method involves: a step for recovering an abrasive agent component by salting out a spent abrasive material slurry by using a cation of an element of the first Group or second Group with an ionic radius of 80 pm to 160 pm in six-coordinate co…
- Who is the assignee on this patent?
- Konica Minolta Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K3/1409. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 12 2016 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).