The present invention relates to a self-sealing tyre for vehicle wheels comprising at least one carcass ply, a tread band applied in radially outer position to said carcass ply in a crown zone, optionally a liner applied in radially inner position to said carcass ply, a sealing composite applied in radially inner position to the liner and axially extended at least at a part of the crown portion of the tyre; wherein said sealing composite comprises a self-supporting thermoplastic film comprising at least 50% by weight with respect to the weight of the film itself of at least one or more polyolefins, wherein the at least one polyolefin has a fluidity index (MFI) of less than 4 gram per 10 minutes, and a sealing composition layer associated with and supported by said self-supporting thermoplastic film.
SELF-SEALING TYRE FOR VEHICLE WHEELS
SELBSTDICHTENDER REIFEN FÜR FAHRZEUGRÄDER
PNEU AUTO-OBTURANT POUR ROUES DE VÉHICULE
2020-12-09
Patent
Elektronische Ressource
Englisch
IPC: | B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60C VEHICLE TYRES , Fahrzeugreifen |