Radiation-curable liquid resin composition for coating optical fibers

US6359025B1 · kind B1 · utility

Assignee

• DSM N.V. · NL

Inventors

• Paul Snowwhite · Dexter, US
• Timothy E. Bishop · Algonquin, US
• David M. Szum · Marengo, US
• Zen Komiya · Tsukuba, JP
• Miyuki Ishikawa · Tsukuba, JP
• Takashi Ukachi · Ushiku, JP

Key dates

• Filing date: Feb 28, 2000
• Grant date: Mar 19, 2002
• Expiry date: Feb 28, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C25/106
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A radiation-curable composition for optical fiber coatings comprising about 10 wt. % to about 90 wt. % of at least one radiation-curable oligomer (A), about 10 wt. % to about 90 wt. % of at least one radiation-curable monomer diluent (B), and an effective amount of at least one photoinitiator (C) represented by formula (1): wherein Ar1 to Ar3 are aromatic groups which may have one or more substitution groups.