Optical fiber
US-10162108-B2 · Dec 25, 2018 · US
Optical fiber
US2019064434A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019064434-A1 |
| Application number | US-201816110132-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 23, 2018 |
| Priority date | Aug 29, 2017 |
| Publication date | Feb 28, 2019 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An optical fiber includes an optical transmission medium comprising a core and a cladding; a primary resin layer disposed in contact with the optical transmission medium to coat the optical transmission medium; and a secondary resin layer coating the primary resin layer, and 1.1 ppm or less of a phosphorus compound and 2.5% by mass or less of a phenol compound based on the total amount of the primary resin layer are contained in the primary resin layer.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical fiber including: an optical transmission medium comprising a core and a cladding; a primary resin layer disposed in contact with the optical transmission medium to coat the optical transmission medium; and a secondary resin layer coating the primary resin layer, wherein 1.1 ppm or less of a phosphorus compound and 2.5% by mass or less of a phenol compound based on a total amount of the primary resin layer are contained in the primary resin layer. 2 . The optical fiber according to claim 1 , wherein the phosphorus compound comprises diphenylphosphoryl azide and/or methylphosphinic acid. 3 . The optical fiber according to claim 1 , wherein the phenol compound comprises a catechol compound. 4 . The optical fiber according to claim 1 , wherein a content of the phosphorus compound is 0.1 to 1.0 ppm. 5 . The optical fiber according to claim 1 , wherein a content of the phenol compound is 0.1 to 2.0% by mass. 6 . The optical fiber according to claim 1 , wherein a tin content of the primary resin layer is 10 to 150 ppm. 7 . The optical fiber according to claim 1 , wherein a Young's modulus of the primary resin layer is 0.5 MN or less at 23° C.
Assignees
Inventors
Classifications
use in electrical wires or wirecoating · CPC title
- G02B6/44Primary
Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables (cables incorporating electric conductors and optical fibres {where features relating to the optical fibres are not of interest} H01B11/22) · CPC title
to obtain optical fibres · CPC title
of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title
Polyureas; Polyurethanes · CPC title
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Frequently asked questions
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- What does patent US2019064434A1 cover?
- An optical fiber includes an optical transmission medium comprising a core and a cladding; a primary resin layer disposed in contact with the optical transmission medium to coat the optical transmission medium; and a secondary resin layer coating the primary resin layer, and 1.1 ppm or less of a phosphorus compound and 2.5% by mass or less of a phenol compound based on the total amount of the p…
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification G02B6/44. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Feb 28 2019 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).