Radiation-curable optical glass fiber coating compositions, coated optical glass fibers, and optical glass fiber assemblies

US6339666B2 · kind B2 · utility

Assignee

• DSM N.V. · NL

Inventors

• David M. Szum · Marengo, US
• Chander Chawla · Batavia, US
• James R. Petisce · Westford, US
• John T. Vandeberg · Barrington, US
• George Pasternack · Riverwoods, US
• Timothy E. Bishop · Algonquin, US
• Paul Snowwhite · Dexter, US
• Edward P. Zahora · Naperville, US
• Stephen C. Lapin · Waterford, US

Key dates

• Filing date: Apr 20, 2001
• Grant date: Jan 15, 2002
• Expiry date: Apr 20, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C25/1065
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Optical fiber coatings are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be achieved by several means which include by use of additives, by use of radiation-curable oligomers having higher molecular weight, or by use of coatings having certain thermal properties. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.