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D1364 bt secondary coatings on optical fiber

a secondary coating and optical fiber technology, applied in the field of radiation curable secondary coatings, can solve problems such as attenuation of the signal transmission capability of coated optical fibers

Inactive Publication Date: 2008-10-02
DSM IP ASSETS BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The relatively soft inner Primary Coating provides resistance to microbending which results in attenuation of the signal transmission capability of the coated optical fiber and is therefore undesirable.

Method used

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  • D1364 bt secondary coatings on optical fiber

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examples

[0160]The abbreviations used in the examples which follow have the meanings described below:[0161]A-189 denotes γ-mercaptopropyltrimethoxysilane[0162]TDI denotes toluenediisocyanate[0163]IPDI denotes isophorone diisocyanate[0164]HHPA denotes hexahydrophthalic anhydride[0165]MHHPA denotes methyl hexahydrophthalic anhydride[0166]SA denotes succinic anhydride[0167]PA denotes phthalic anhydride[0168]MA denotes maleic anhydride[0169]DDSA denotes dodecenyl succinic anhydride[0170]OSA denotes octeneyl succinic anhydride[0171]EPON825 denotes bisphenol A / epichlorohydrin[0172]EPONS28 denotes bisphenol A / epichlorohydrin[0173]YD-126 denotes bisphenol A / epichlorohydrin[0174]SynFac 8015 denotes propoxylated bisphenol A (15 mol PO)[0175]Photomer 3016 denotes epoxy acrylate derived from bisphenol A diglycidyl ether and acrylate (TPGDA, TMPTO, or GPTA)[0176]Gadura E-10 denotes versatic acid monoglycidyl ether[0177]VAME denotes versatic acid monoglycidyl ether[0178]12OH denotes 12-hydroxystearic acid...

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Abstract

The invention relates to a Radiation Curable Secondary Coating composition for use on an Optical Fiber. The Radiation Curable Secondary Coating composition is a urethane-free Alpha Oligomer prepared by reaction of the following: (a) an acrylate compound selected from an alcohol-containing acrylate or alcohol-containing methacrylate compound, (b) an anhydride compound, (c) an epoxy-containing compound, (d) optionally an extender compound, and (e) optionally a catalyst. The invention also relates to a coated wire and to a coated optical fiber.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This patent application claims priority to co-pending U.S. Provisional Patent Application No. 60 / 874,723, “D Radiation Curable Secondary Coating for Optical Fiber”, filed Dec. 14, 2006, and U.S. Provisional Patent Application No. 60 / 874,720, “R Radiation Curable Secondary Coating for Optical Fiber”, filed Dec. 14, 2006, co-pending U.S. Provisional Patent Application No. 60 / 874,730, “Supercoatings for Optical Fiber”, filed Dec. 14, 2006, which are all incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates generally to Radiation Curable Secondary Coatings suitable for use on Optical Fibers. More particularly the present invention relates to Optical fiber Secondary Coating compositions that include a urethane-free oligomer, and to optical fibers coated with such secondary compositions.BACKGROUND OF THE INVENTION[0003]Optical fibers are frequently coated with two or more superposed radiation-curable coating...

Claims

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Application Information

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IPC IPC(8): B32B17/02C08L75/04B32B17/10C03C25/34
CPCC03C25/1065C08G18/672C08G18/724C09D175/16G02B1/12Y10T428/2938C09D163/00C09D175/14Y10T428/2964C08G18/48C03C25/10C03C25/26C08G18/67
Inventor CATTRON, WENDELL WAYNESCHMID, STEVEN R.MURPHY, EDWARD J.ZIMMERMAN, JOHN M.TORTORELLO, ANTHONY JOSEPH
Owner DSM IP ASSETS BV
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