Filling composition for optical fiber cables
US11466155B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 30, 2017 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Aug 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4483
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A filling composition comprises (A) a mineral oil having a kinematic viscosity from 80 cSt to 100 cSt at 40° C.; (B) a styrene-ethylene/propylene diblock copolymer; and (C1) a propylene/ethylene copolymer having a weight average molecular weight (Mw) from 5,000 to 200,000 or (C2) an ethylene/propylene copolymer having a weight average molecular weight (Mw) from 5,000 to 200,000. The filling composition is used as a filling composition in a buffer tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.