Amorphous fluoropolymer manufactured articles
US6469116B2 · kind B2 · utility
24Cited by
12References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/262
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Amorphous fluoropolymer selfsupported manufactured articles obtained by casting from solution in a single step, characterized in that they are obtained by the polymerization of a structure (I), optionally and preferably with a monomer having a structure (II): CF2=CY1Y2  (II)wherein: Rf is a C1-C5 perfluoroalkyl radical; X1 and X2 are selected from F and CF3; Y1 and Y2 are selected from F, Cl, H, CF3, ORf; having refractive index lower than 1.35, transmittance higher than 90% in the radiation field 300-2,000 nm wave length, and thickness higher than 20-25 &mgr;m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.