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:
May. 05, 2026
Filed:
Apr. 29, 2022
Pirelli Tyre S.p.a., Milan, IT;
PIRELLI TYRE S.p.A., Milan, IT;
Abstract
The present invention relates to a self-sealing tyre for vehicle wheels comprising at least one carcass ply (), a tread band () applied in a radially external position with respect to said carcass ply in a crown portion, at least one liner () applied in a radially internal position with respect to said carcass ply, a sealing assembly () applied in a radially internal position with respect to said liner and axially extending at least at a part of the crown portion; wherein said sealing assembly comprises a permanent self-supporting elastomeric layer () having an elongation modulus at 10% lower than 0.8 MPa, said self-supporting elastomeric layer being obtained by vulcanisation of an elastomeric compound having a Mooney ML(1+4) viscosity lower than 30, and a layer of sealing material () associated with and supported by said permanent self-supporting elastomeric layer; wherein said self-supporting elastomeric layer is radially internal to the layer of sealing material and said layer of sealing material is placed substantially in contact with said liner.