Soft magnetic resin composition and soft magnetic film
US-2017271062-A1 · Sep 21, 2017 · US
Soft magnetic resin composition and soft magnetic film
US10269477B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10269477-B2 |
| Application number | US-201415031042-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 4, 2014 |
| Priority date | Oct 22, 2013 |
| Publication date | Apr 23, 2019 |
| Grant date | Apr 23, 2019 |
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Abstract
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A soft magnetic resin composition contains flat soft magnetic particles, a resin component, and a rheology control agent.
First claim
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The invention claimed is: 1. A soft magnetic resin composition comprising: flat soft magnetic particles, a resin component, a dispersant, and a rheology control agent, wherein the dispersant content relative to 100 parts by mass of the soft magnetic particles is 0.05 parts by mass or more and 5 parts by mass or less and the rheology control agent content relative to 100 parts by mass of the soft magnetic particles is 0.05 parts by mass or more and 2 parts by mass or less, wherein the soft magnetic particles have an aspect ratio of 8 or more and 80 or less, and wherein the rheology control agent contains at least one kind selected from the group consisting of modified urea and urea-modified polyamide, where the modified urea is modified with a polyoxyalkylene polyol or an alkyd chain, and where the urea-modified polyamide includes a compound having a urea bond and a compound having a polar group, wherein the compound having the polar group is bonded to the end of the compound having the urea bond. 2. The soft magnetic resin composition according to claim 1 , wherein the dispersant contains at least one kind selected from the group consisting of polyether phosphate ester, a silane coupling agent, and a titanate coupling agent. 3. A soft magnetic film formed by applying a soft magnetic resin composition comprising: flat soft magnetic particles, a resin component, a dispersant, and a rheology control agent, wherein the dispersant content relative to 100 parts by mass of the soft magnetic particles is 0.05 parts by mass or more and 5 parts by mass or less and the rheology control agent content relative to 100 parts by mass of the soft magnetic particles is 0.05 parts by mass or more and 2 parts by mass or less, wherein the soft magnetic particles have an aspect ratio of 8 or more and 80 or less, and wherein the rheology control agent contains at least one kind selected from the group consisting of modified urea and urea-modified polyamide, where the modified urea is modified with a polyoxyalkylene polyol or an alkyd chain, and where the urea-modified polyamide includes a compound having a urea bond and a compound having a polar group, wherein the compound having the polar group is bonded to the end of the compound having the urea bond.
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Classifications
Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain (of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08); Compositions of derivatives of such polymers · CPC title
- H01F1/26Primary
by macromolecular organic substances · CPC title
Anti-settling agents · CPC title
Magnetic shielding materials · CPC title
in a bonding agent · CPC title
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- What does patent US10269477B2 cover?
- A soft magnetic resin composition contains flat soft magnetic particles, a resin component, and a rheology control agent.
- Who is the assignee on this patent?
- Nitto Denko Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/26. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 23 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).