Low smoke fire-resistant optical ribbon
US10167396B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2017 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | May 3, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/019
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of an optical fiber ribbon cable are provided. The optical fiber ribbon cable includes a cable jacket having an interior surface defining a central bore, at least one buffer tube located in the central bore of the cable jacket, and at least one optical fiber ribbon disposed within the at least one buffer tube. The at least one optical fiber ribbon includes a plurality of optical fibers, a polymer matrix surrounding the plurality of optical fibers, and a low-smoke, flame retardant (LSFR) coating surrounding the polymer matrix. The LSFR coating includes from 25 to 65% by weight of an inorganic, halogen-free flame retardant filler dispersed in a curable acrylate medium. Further, the inorganic, halogen-free flame retardant filler includes particles having, on average, a maximum outer dimension of 5 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.