LAN cables

摘要

Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight on the total of the monomers: a) 0-5.5% of perfluoromethylvinylether (PMVE); b) 0.4-4.5% of perfluoroethylvinylether (PEVE) and/or perfluoropropylvinylether (PPVE); when a) is present, then a)+b) ranges from 1.5% to 5.5% by weight on the total of the monomers; optionally c) 0-6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.

主权项

1. A coating for a primary cable and for an external jacket, comprising tetrafluoroethylene (TFE) thermoprocessable perfluoropolymers, wherein the TFE thermoprocessable perfluoropolymers have a stress at break of at least 17 MPa, as measured according to ASTM D 638, type V, at 23° C., the TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight of the total monomers:
a) 0.8-2.7% of perfluoromethylvinylether (PMVE); b) 1.6-3.7% of perfluoroethylvinylether (PEVE); wherein the total amount of perfluoroalkylvinylethers a)+b) ranges from greater than 4.0% to 5.0% by weight of total monomers; c) from 0.5 to 6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.