The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2024
Filed:
Apr. 26, 2018
Prysmian S.p.a., Milan, IT;
Politecnico Di Milano, Milan, IT;
Vito Scrima, Milan, IT;
Luigi Caimi, Milan, IT;
Massimo Gola, Milan, IT;
Attilio Citterio, Milan, IT;
Prysmian S.P.A., Milan, IT;
Politecnico di Milano, Milan, IT;
Abstract
Disclosed herein are flame-retardant electric cables () having a core containing an electric conductor () and an electrically insulating layer () made from a flame-retardant polyolefin-based composition including a) a cross-linked polyolefin as base polymer, b) silica, and c) carbon nanotubes, wherein the amount of silica is from 5 wt % to 10 wt % of the polyolefin-based composition, and the amount of carbon nanotubes is from 0.5 wt % to 2 wt % of the polyolefin-based composition. Such cables have improved flame retardant performances, especially regarding a lower occurrence of droplets during burning, which render them capable of being certified in higher classes of the current international standards, for example of the standard EN 50399:2011/A1 (2016).