FIELD: transport machine building.
SUBSTANCE: present invention relates to self-sealing tire for vehicle wheels. Technical result is achieved by unvulcanized tire comprising carcass layer, tread band superimposed in radial direction on said carcass layer in crown area, optionally sealing layer superimposed in radial direction inside onto said carcass layer, sealing composition material, applied in radial direction inside on sealing layer and passing in axial direction at least on part of crown part of tire. Said sealing composite material comprises a self-supporting thermoplastic film, containing at least 50 wt % at least one or more polyolefins relative to the weight of the film itself. Polyolefin has a flow index (MFI) of less than 4 grams per 10 minutes. Layer of sealing composition interacting with said self-supporting thermoplastic film and resting thereon.
EFFECT: high reliability of self-adhesive buses, as well as high stability of structure and dimensions of unvulcanized tires.
15 cl, 7 dwg, 9 tbl, 2 ex
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