Processing of anisotropic permanent magnet without magnetic field
US-11948733-B2 · Apr 2, 2024 · US
Resin composition for bonded magnets and molded body using same
US2025276909A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025276909-A1 |
| Application number | US-202218690882-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 30, 2022 |
| Priority date | Oct 5, 2021 |
| Publication date | Sep 4, 2025 |
| Grant date | — |
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- Title
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Abstract
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According to the present embodiment, there is provided a resin composition for bonded magnets which is excellent in physical properties such as heat resistance, bending strength, and IZOD impact strength without decreasing magnetic properties and which reduces generation of corrosive gas. There is provided: a resin composition for bonded magnets that includes a magnetic powder, a PPS resin, and a hydrotalcite powder, in which the content of the hydrotalcite powder is 0.1 to 25.0 wt % relative to the PPS resin; and a molded body of the resin composition for bonded magnets.
First claim
Opening claim text (preview).
1 . A resin composition for bonded magnets comprising: a magnetic powder, a PPS resin; and a hydrotalcite powder, wherein hydrotalcite is contained in an amount of 0.1 to 25.0 wt % relative to the PPS resin. 2 . The resin composition for bonded magnets according to claim 1 , containing 5 to 30 wt % of the PPS resin. 3 . The resin composition for bonded magnets according to claim 1 , containing 0.01 to 4.0 wt % of the hydrotalcite. 4 . The resin composition for bonded magnets according to claim 1 , wherein the hydrotalcite powder is an Mg—Al-based hydrotalcite. 5 . A molded body that is molded using the resin composition for bonded magnets according to claim 1 .
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Classifications
Additives being defined by their surface area · CPC title
with silicon-containing compounds · CPC title
based on ferrites · CPC title
in the form of particles, e.g. rapid quenched powders or ribbon flakes · CPC title
- H01F1/113Primary
in a bonding agent · CPC title
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- What does patent US2025276909A1 cover?
- According to the present embodiment, there is provided a resin composition for bonded magnets which is excellent in physical properties such as heat resistance, bending strength, and IZOD impact strength without decreasing magnetic properties and which reduces generation of corrosive gas. There is provided: a resin composition for bonded magnets that includes a magnetic powder, a PPS resin, and…
- Who is the assignee on this patent?
- Toda Kogyo Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/113. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 04 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).