Modified fluorine-containing copolymer and fluorine resin molded article
US-2016319089-A1 · Nov 3, 2016 · US
Heat-resistant electric wire
US9831014B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9831014-B2 |
| Application number | US-201415108104-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2014 |
| Priority date | Jan 8, 2014 |
| Publication date | Nov 28, 2017 |
| Grant date | Nov 28, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
A heat-resistant electric wire including a core wire and a coating that covers the core wire. The coating is formed from a modified fluorine-containing copolymer that is obtained by irradiating a copolymer with radiation at an exposure of 250 kGy or lower at a temperature of not higher than the melting point of the copolymer. The copolymer is at least one copolymer selected from a copolymer including a tetrafluoroethylene unit and a perfluoro(alkyl vinyl ether) unit and a copolymer including a tetrafluoroethylene unit and a hexafluoropropylene unit.
First claim
Opening claim text (preview).
The invention claimed is: 1. A heat-resistant electric wire comprising a core wire and a coating that covers the core wire, the coating being formed from a modified fluorine-containing copolymer that is obtained by irradiating a copolymer with radiation at an exposure of 90 kGy or lower at a temperature of not higher than the melting point of the copolymer, wherein the copolymer including a tetrafluoroethylene unit and a perfluoro(alkyl vinyl ether) unit includes 2.0 to 12 mass % of the perfluoro(alkyl vinyl ether) unit in all the monomer units, wherein the copolymer has 191 or more functional groups per 10 6 carbon atoms and the functional groups include at least one selected from the group consisting of —CF═CF 2 , —CF 2 H, —COF, —COOH, —COOCH 3 ; —CONH 2 , and —CH 2 QH. 2. A method of producing the heat-resistant electric wire according to claim 1 , comprising extrusion-molding, on a core wire, a copolymer including a tetrafluoroethylene unit and a perfluoro(alkyl vinyl ether) unit to provide a coating that covers the core wire, and irradiating the coating with radiation. 3. The production method according to claim 2 , wherein the coating further contains polytetrafluoroethylene.
Assignees
Inventors
Classifications
Homopolymers or copolymers of tetrafluoroethene · CPC title
comprising one or more extruded layers of insulation · CPC title
from other vinyl compounds · CPC title
from vinylfluorides or other fluoroethylenic compounds · CPC title
Homopolymers or copolymers of tetrafluoroethylene · CPC title
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- What does patent US9831014B2 cover?
- A heat-resistant electric wire including a core wire and a coating that covers the core wire. The coating is formed from a modified fluorine-containing copolymer that is obtained by irradiating a copolymer with radiation at an exposure of 250 kGy or lower at a temperature of not higher than the melting point of the copolymer. The copolymer is at least one copolymer selected from a copolymer inc…
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01B7/292. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 28 2017 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).