Polyurethane acrylate or vinyl type polymeric material for coating optical fibers based on a fluorinated diol
US6423809B1 · kind B1 · utility
1Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides a polyurethane type polymeric material for coating optical fibers, based on a fluorinated diol with formula I:CnF2n+1—A—CH2OCH2—C (CH2OH)2—Rwhere n is 2 to 20, and A signifies —CH═CH or —CH2CH2—, and R is an alkyl group containing 1 to 4 carbon atoms. The invention also provides a fiber coated with this polymer which has been light-cured, and a fiber drawing method comprising a step of coating the fiber with a material of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.