RADIATION-CURABLE COMPOSITION FOR FORMING OPTICAL WAVEGUIDE, OPTICAL WAVEGUIDE AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide an optical waveguide excellent in transmission properties and long-term stability of the properties and to provide a method for manufacturing the optical waveguide. SOLUTION: In the optical waveguide comprising a lower clad layer, a core portion and an upper clad lay...

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Bibliographic Details
Main Authors TAMAKI KENTARO, ERIYAMA YUUICHI, TAKASE HIDEAKI, UKO TOMOHIRO
Format Patent
LanguageEnglish
Published 18.07.2003
Edition7
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an optical waveguide excellent in transmission properties and long-term stability of the properties and to provide a method for manufacturing the optical waveguide. SOLUTION: In the optical waveguide comprising a lower clad layer, a core portion and an upper clad layer, at least one selected from the lower clad layer, the core portion and the upper clad layer is a cured body of a radiation- curable composition comprising (A) a copolymer (having alkali solubility) comprising (a) (5-50 wt.% component comprising) a radical polymerizable compound having a carboxy group, (b) (15-60 wt.% component comprising) a radial polymerizable compound having no carboxy group and (c) (5-80 wt.% component comprising) another radical polymerizable compound, (B) a compound having two or more polymerizable reactive groups per molecule and (C) a radiation polymerization initiator. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20010400881