发明名称 |
Expandable bladder for tyre manufacturing apparatuses, a manufacturing method thereof and a process for manufacturing tyres for vehicle wheels |
摘要 |
An expandable bladder has at least one first layer of a natural or synthetic rubber-based material or a mixture thereof, and one second layer of silicone material, radially external to the first layer. The first and second layers have an undulated interface profile defining mechanical-engagement elements between the first and second elastomer materials. A process for manufacturing a bladder as well as a tyre manufacturing apparatus incorporating bladders is also disclosed.
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申请公布号 |
US2007131339(A1) |
申请公布日期 |
2007.06.14 |
申请号 |
US20040576544 |
申请日期 |
2004.10.27 |
申请人 |
PIRELLI PNEUMATICI S.P.A. |
发明人 |
LO PRESTI GAETANO;RODOLFO NOTO;DE GESE IGNAZIO;POZZATI GIOVANNI;LOPREVITE MASSIMO |
分类号 |
B29D30/32 |
主分类号 |
B29D30/32 |
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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