发明名称 |
A METHOD OF SELECTIVELY CONTROLLING THE SELF-SEALING ABILITY OF A TYRE AND SELF-SEALING TYRE FOR VEHICLE WHEELS |
摘要 |
A method of selectively controlling the self-sealing ability of a tyre obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tyre inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed. |
申请公布号 |
EP2504157(B1) |
申请公布日期 |
2014.10.15 |
申请号 |
EP20100803500 |
申请日期 |
2010.11.18 |
申请人 |
PIRELLI TYRE S.P.A. |
发明人 |
D'ORIA, FRANCESCO;MANCINI, GIANNI;PUPPI, CRISTIANO;SABBATANI, ENRICO;SIMONATO, GIOVANNI |
分类号 |
B29C73/20;B29D30/06;B60C5/14;B60C19/12 |
主分类号 |
B29C73/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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