Optical waveguide photosensitive resin composition, photocurable film for forming optical waveguide core layer, optical waveguide using same, and mixed flexible printed circuit board for optical/electrical transmission
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United States of America Patent
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Jan 2, 2018
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Oct 24, 2014
filing date -
Nov 8, 2013
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Abstract
An optical waveguide photosensitive resin composition containing an aliphatic resin having a polymerizable substituent and a photopolymerization initiator, in which the aliphatic resin having the polymerizable substituent is formed of a side-chain polyfunctional aliphatic resin (A) and a bifunctional long-chain aliphatic resin (B), is provided. Accordingly, the composition brings together high transparency, satisfactory roll-to-roll compatibility, and a high resolution patterning property, and has excellent reflow resistance. Therefore, the composition is useful as a material for forming an optical waveguide, especially a core layer-forming material.
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