PRIMARY COATED OPTICAL FIBER

PROBLEM TO BE SOLVED: To provide a primary coated optical fiber excellent in resistance against yellowing. SOLUTION: The primary coated optical fiber is characterized in that it is constituted by forming a coating composed of ultraviolet-curing resin on the outer circumference of a glass optical fib...

Full description

Saved in:
Bibliographic Details
Main Authors UI KEISUKE, SATO TETSUO, SENOO ATSUYOSHI
Format Patent
LanguageEnglish
Published 04.10.2007
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a primary coated optical fiber excellent in resistance against yellowing. SOLUTION: The primary coated optical fiber is characterized in that it is constituted by forming a coating composed of ultraviolet-curing resin on the outer circumference of a glass optical fiber bare wire and that an unreactive photoinitiator quantity in 1 g of the coating material is ≤2.4×10-3mol equivalent. The ultraviolet-curing resin is characterized in that it contains urethane acrylate whose poly isocyanate component is aromatic group based poly isocyanate and that tolylenediisocyanate is used as the aromatic group based poly isocyanate. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060080587