Method for producing optical fiber having formyl groups on core surface thereof
US5354574A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Jun 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/545
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to a method for producing an optical fiber having formyl groups on a core surface. In one embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by immersing the core surface of the plastic optical fiber in a treating solution containing at least a 0.5 to 40 mM alkali metal hydroxide and a compound having formyl groups in water or lower alcohol solvent. In the other embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by introducing a vic-diol group, a primary hydroxyl group or an alkenyl group on the core surface, and then oxidizing it. Turbidity on the core surface of the optical fiber thus obtained is minimized, thereby reducing the transmittance losses of light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.