Fluorine-containing thermoplastic elastomer composition
US-2021071027-A1 · Mar 11, 2021 · US
Magnet wire and coil
US12437897B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12437897-B2 |
| Application number | US-202017605635-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2020 |
| Priority date | Apr 26, 2019 |
| Publication date | Oct 7, 2025 |
| Grant date | Oct 7, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A magnet wire including a conductor and an insulating coating formed on an outer periphery of the conductor. The insulating coating contains a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit. The copolymer has a melt flow rate of 10 to 60 g/10 min, and the copolymer has a fluoroalkyl vinyl ether unit content of 6.2 to 8.0% by mass based on a total content of monomer units.
First claim
Opening claim text (preview).
The invention claimed is: 1. A coil comprising a flat magnet wire comprising (i) a flat conductor and an insulating coating formed on an outer periphery thereof, and (ii) an insulating coating containing a copolymer (a) which contains a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, has a melt flow rate of 10 to 40 g/10 min, and has a fluoroalkyl vinyl ether unit content of 6.2 to 8.0% by mass based on a total content of monomer units, wherein the insulating coating contains only the copolymer (a) as a polymer material; wherein the coil is formed by bending and winding the flat magnet wire in an edgewise direction. 2. The magnet wire according to claim 1 , wherein the insulating coating is a crosslinked insulating coating. 3. The magnet wire according to claim 1 , wherein the insulating coating is an irradiated insulating coating. 4. The magnet wire according to claim 1 , wherein the copolymer (a) has functional groups, and the number of functional groups in the copolymer (a) is 5 to 1,000 per 106 carbon atoms. 5. The magnet wire according to claim 1 , wherein the insulating coating has a thickness of 30 to 100 μm.
Assignees
Inventors
Classifications
in the form of wires (H01F1/147 takes precedence) · CPC title
Alloys based on copper · CPC title
using irradiation · CPC title
Homopolymers or copolymers of tetrafluoroethene · CPC title
with fluorinated vinyl ethers · CPC title
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- What does patent US12437897B2 cover?
- A magnet wire including a conductor and an insulating coating formed on an outer periphery of the conductor. The insulating coating contains a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit. The copolymer has a melt flow rate of 10 to 60 g/10 min, and the copolymer has a fluoroalkyl vinyl ether unit content of 6.2 to 8.0% by mass based on a total content of m…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01B3/445. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 07 2025 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).