Fluorinated diene compound and fluoropolymer, and methods for their production
US6911513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2004 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Apr 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel fluoropolymer which can be an optical resin material having a low refractive index and excellent heat resistance, and a novel fluorinated diene compound having two unsaturated bonds, capable of presenting such a fluoropolymer, are presented. Further, by virtue of the low refractive index and excellent heat resistance, the polymer presents a high performance optical transmitter and a plastic optical fiber.A fluorinated diene compound represented by CF2═CFCF(ORf)CF2OCF═CF2 (wherein Rf is a perfluoroalkyl group such as a trifluoromethyl group), and a fluoropolymer thereof. Further, an optical transmitter made by using such a fluoropolymer, and a plastic optical fiber having a core comprising such a fluoropolymer and a fluorinated low molecular weight compound contained therein as a refractive index-increasing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.