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

US6298189A · kind A · 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: Mar 6, 1998
• Grant date: Oct 2, 2001
• Expiry date: Mar 6, 2018

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.