Ethylene copolymers with tetrafluoroethylene and/or chlorotrifluorethylene having improved mechanical properties at high temperatures
US5597880A · kind A · utility
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10References
8Claims
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Key dates
| Filing date | Jan 4, 1996 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Jan 4, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F214/186
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Copolymers comprising: (A) from 30 to 70% by moles of ethylene; (B) from 30 to 70% by moles of a fluorinated monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, or their mixtures; (C) from 0.1 to 10% by moles with respect to the total amount of monomers (A) and (B), of a fluorodioxol having the formula: ##STR1## wherein R.sub.F is a perfluoroalkyl having from 1 to 5 carbon atoms; X.sub.1 and X.sub.2, equal to or different from each other, are --F or --CF.sub.3 ; Z is selected from --F, --H, --Cl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.