Ultraviolet radiation-curable coatings for optical fibers and optical fibers coated therewith
US5146531A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Aug 8, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Ultraviolet radiation-curable primary and secondary coating compositions for optical fibers are disclosed. The primary coatings comprise a hydrocarbon polyol-based acrylated or methacrylated aliphatic urethane oligomer; an alkyl acrylate or methacrylate monomer; a refractive index modifying monomer or oligomer; a silane adhesion promoter; and a photoinitiator. The secondary coatings comprise a polyester-based aliphatic urethane acrylate or methacrylate oligomer; an acrylated or methacrylated compound; and a photoinitiator. Also disclosed are optical fibers coated with the secondary coating alone or with the primary and secondary coatings of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.