Optical coating and application thereof

A technology of optical coatings and photoinitiators, applied in the field of optical coatings, can solve the problems of large loss and achieve the effect of simple and practical operation

Inactive Publication Date: 2015-07-15
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the additional loss is relatively large during single-layer coating, so the current two-layer coating process is mainly used.

Method used

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  • Optical coating and application thereof
  • Optical coating and application thereof
  • Optical coating and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Synthesis of epoxy polyurethane (meth)acrylate oligomer A

[0025]

Embodiment 2

[0027] Synthesis of epoxy polyurethane (meth)acrylate oligomer B

[0028]

[0029]

Embodiment 3

[0031] Synthesis of epoxy polyurethane (meth)acrylate oligomer C

[0032]

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Abstract

The invention relates to an optical coating. The optical coating comprises 20-70wt% of oligomer, 20-70wt% of an active monomer diluent, 1-10wt% of a photoinitiator, 1-10wt% of an assistant and 0.1-2wt% of a molecular weight adjusting agent; and the oligomer is epoxy polyurethane (meth)acrylate, and the molecular weight adjusting agent is one or two or above of 1-dodecanethiol, tert-dodecanethiol, ethylhexyl 3-mercaptopropionate, pentaerythritol tetra(3-mercaptopropionate), isooctyl 3-mercaptopropionate and 2,4-diphenyl-4-methyl-1-pentene. A certain amount of the molecular weight adjusting agent is added to the formula of the coating in order to adjust the molecular weight and the curing degree in the coating radiation curing process, so the mechanical performances of the coating are changed, and the obtained coating is especially suitable for being used as a fiber coating and optical fiber ribbon.

Description

technical field [0001] The invention relates to an optical coating, in particular to an optical coating containing a molecular weight modifier which is cured by ultraviolet light, and is especially suitable for being used as an optical fiber coating and an optical fiber ribbon resin. Background technique [0002] Optical fiber is the medium for information transmission in optical communication systems, and its function is to transmit optical signals to the terminal detector with as little loss as possible. At present, the commercially mature one is quartz glass optical fiber, which is drawn by melting and drawing quartz glass preform rods. Pure silica glass optical fibers will inevitably be affected by various mechanical damage and environmental factors during the drawing process, and cannot meet the needs of practical applications at all. Therefore, it is necessary to coat the protective resin, that is, the optical fiber coating, in the shortest possible time when the glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D7/12
CPCC08G18/48C08G18/67C09D7/40C09D133/08C09D133/10C09D175/14
Inventor 方足成姜胜斌马鑫陈刚
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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