Arrangement for electromagnetic screening
US-2015382516-A1 · Dec 31, 2015 · US
Insulated wire
US9972409B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9972409-B2 |
| Application number | US-201514852019-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 11, 2015 |
| Priority date | Sep 18, 2014 |
| Publication date | May 15, 2018 |
| Grant date | May 15, 2018 |
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Abstract
Official abstract text for this publication.
According to one embodiment, an insulated wire is disclosed. The insulated wire includes an aluminum conductor, and a first insulating film provided on the aluminum conductor. The first insulating film is made of a first polyimide obtained by reacting an acid component containing 50 mol % to 90 mol % of 3,3′,4,4′-biphenyl tetracarboxylic acid dianhydride, 5 mol % to 20 mol % of 3,3′,4,4′-benzophenone tetracarboxylic acid dianhydride, and 5 mol % to 40 mol % of pyromellitic anhydride with a diamine component containing 4,4′-diaminodiphenyl ether.
First claim
Opening claim text (preview).
What is claimed is: 1. An insulated wire, comprising: an aluminum conductor; and a first insulating film, wherein said first insulating film is in contact with said aluminum conductor, the first insulating film consisting essentially of a first polyimide obtained by reacting an acid component with a diamine component, the acid component consisting essentially of, with respect to 100 mol % of the acid component: 60 mol % to 70 mol % of 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA), 10 mol % to 15 mol % of 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BTDA), and 25 mol % to 30 mol % of pyromellitic dianhydride (PMDA), and the diamine component consisting essentially of 90 mol % or greater of 4,4-diaminodiphenyl ether. 2. The insulated wire according to claim 1 , wherein the first polyimide has a glass transition point (T g ) of 250° C. to 350° C. 3. The insulated wire according to claim 1 , wherein the first insulating film has a thickness of 10 μm to 200 μm. 4. The insulated wire according to claim 1 , further comprising a second insulating film provided on the first insulating film, the second insulating film being made of a second polyimide. 5. The insulated wire according to claim 1 , wherein the conductor is a rectangular conductor. 6. The insulated wire according to claim 5 , wherein the rectangular conductor has a rectangular cross section of 2.0 mm to 7.0 mm in width and 0.7 mm to 3.0 mm in thickness. 7. The insulated wire according to claim 1 , wherein the acid component consists of 60 mol % BPDA, 15 mol % BTDA and 25 mol % PMDA.
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- What does patent US9972409B2 cover?
- According to one embodiment, an insulated wire is disclosed. The insulated wire includes an aluminum conductor, and a first insulating film provided on the aluminum conductor. The first insulating film is made of a first polyimide obtained by reacting an acid component containing 50 mol % to 90 mol % of 3,3′,4,4′-biphenyl tetracarboxylic acid dianhydride, 5 mol % to 20 mol % of 3,3′,4,4′-benzop…
- Who is the assignee on this patent?
- Denso Corp, Unimac Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01B1/023. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 15 2018 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).