Optical fibre coated with a polyester coating
US11396476B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 22, 2016 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jun 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns an optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a coating surrounding said optical waveguide comprising a cured polymer material comprising a polyester obtained by esterification of: a reactant A selected from an acid, a triglyceride, or a mixture of triglycerides having a C16-C24 aliphatic chain comprising at least two conjugated double bonds; and a polyol made of at least one monomer comprising at least 3 hydroxyl groups, the polyol being thermally stable up to 300° C. (reactant B). The present invention concerns also the above said polyester coating, a method for coating an optical fibre with said polyester coating and a method for obtaining predetermined mechanical properties of a coating for an optical fibre. The cured polymer forming the coating can be prepared by curing the polyester of the invention either thermally or by radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.