Nissan Chemical Corporation

Kazuki Yasuhara

Sho Yoshida

Takehiro Nagasawa

Kentaro Ohmori

Takaaki Ishigure

Yuki Saito

A production method for an optical waveguide including: a first step of inserting a needle-like portion at a tip end of an ejection unit into uncured cladding; a second step of moving the needle-like portion in the uncured cladding while ejecting an uncured material from the needle-like portion to form an uncured core surrounded and covered with the uncured cladding; a third step of removing the needle-like portion from the uncured cladding; and a fourth step of curing the uncured cladding and core, wherein the uncured cladding is composed of a composition including a reactive silicone compound composed of a polycondensate of a diarylsilicic acid compound of Formula [1] and an alkoxy silicon compound of Formula [2]Ar&#x2014;Si(OR)R&#x2003;&#x2003;[2]and a di(meth)acrylate compound of Formula [3] and the uncured core is composed of a composition including a reactive silicone compound and an aromatic vinyl compound of Formula [4] 

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Yokohama, Japan

Kazuki Yasuhara