Optical fiber protective composite coating
US-2024264397-A1 · Aug 8, 2024 · US
Optical fiber
US2019064433A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019064433-A1 |
| Application number | US-201816110114-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 23, 2018 |
| Priority date | Aug 28, 2017 |
| Publication date | Feb 28, 2019 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
An optical fiber comprising: a glass fiber including a core and a cladding; and a coating layer coating an outer periphery of the glass fiber; wherein the coating layer includes a primary coating layer and a secondary coating layer, and a hardness at a depth of 200 nm from a surface of the secondary coating layer, H IT-200 nm , is 0.02 to 0.20 GPa as measured with a nano indenter.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical fiber comprising: a glass fiber including a core and a cladding; and a coating layer coating an outer periphery of the glass fiber; wherein the coating layer includes a primary coating layer and a secondary coating layer, and a hardness at a depth of 200 nm from a surface of the secondary coating layer, H IT-200 nm , is 0.02 to 0.20 GPa as measured with a nano indenter. 2 . The optical fiber according to claim 1 , wherein the secondary coating layer is a cured product of a resin composition comprising an epoxy (meth)acrylate. 3 . The optical fiber according to claim 1 , wherein the secondary coating layer is a cured product of a resin composition comprising 1-hydroxycyclohexyl phenyl ketone. 4 . The optical fiber according to claim 1 , wherein a Young's modulus of the secondary coating layer is 0.5 to 2.0 GPa at 23° C.
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Classifications
Polyureas; Polyurethanes · CPC title
- G02B6/443Primary
Protective covering · CPC title
of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title
Multiple coatings · CPC title
- G02B6/02395Primary
Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture (G02B6/02052, G02B6/02057, G02B6/024, G02B6/032, G02B6/105, G02B6/14 take precedence; coating on fibre gratings G02B6/02104; multilayer core or cladding G02B6/036; reinforcing splice joints G02B6/2558; optical cables, i.e. comprising protective structures external to the protective coating such as a jacket or plural coated optical fibres G02B6/44; coating of glass to obtain optical fibres C03C25/104) · CPC title
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- What does patent US2019064433A1 cover?
- An optical fiber comprising: a glass fiber including a core and a cladding; and a coating layer coating an outer periphery of the glass fiber; wherein the coating layer includes a primary coating layer and a secondary coating layer, and a hardness at a depth of 200 nm from a surface of the secondary coating layer, H IT-200 nm , is 0.02 to 0.20 GPa as measured with a nano indenter.
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification G02B6/443. 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).