Super-absorbent swellable hot melt coated optical fibers, buffer tubes, cable designs thereof and manufacturing processes
US11105998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2019 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Nov 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4434
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of an optical fiber cable are provided. The cable includes a cable jacket and at least one buffer tube. Each buffer tube surrounds a plurality of optical fibers. The cable jacket surrounds the at least one buffer tube. Further, a coating of superabsorbent, swellable hot melt is applied to at least one of the following locations: (i) along at least a portion of the length of at least one of the plurality of optical fibers; (ii) along at least a portion of the length of the exterior or interior surface of the at least one buffer tube; or (iii) along at least a portion of the length of the interior surface of the cable jacket. Moreover, the superabsorbent, swellable hot melt is capable of absorbing at least 50 g of water per gram of superabsorbent, swellable hot melt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.