Heat-resistant plastic optical fiber and process for the production thereof
US5121461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Oct 1, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/048
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heat-resistant plastic optical fiber having a concentric three-layered structure comprising a core layer, a sheath layer and a protective layer, wherein the polymer constituting the sheath layer is a copolymer comprising 30 to 80 mole % of a fluorodioxole represented by the general formula: ##STR1## wherein R and R' are each a fluorine atom or a trifluoromethyl group, and 70 to 20 mole % of at least one other comonomer. Also, a process for the production of the heat-resistant plastic optical fiber comprising spinning a core-forming polymer, a sheath-forming polymer and a protective layer-forming polymer by a three-layered conjugate spinning process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.