发明名称 |
PROCEDIMENTO PER LA PRODUZIONE DI UNA MESCOLA DI GOMMA VULCANIZZABILE CON CARICA RINFORZANTE A BASE DI SILICE |
摘要 |
In a process for producing a vulcanizable rubber composition containing silica and having a low content of carbon black, at least a silica-based reinforcing filler and ad least a silane-based coupling agent are added to and intimately mixed with other ingredients of the composition in subsequent steps, at a temperature of from 165 DEG and 180 DEG C and between 110 DEG and 160 DEG C respectively. The rubber composition so obtained has an improved silica dispersion, constant physico-mechanical characteristics and a better drawability and is particularly suitable for the manufacture of treads for tyres with low rolling resistance. <IMAGE> |
申请公布号 |
IT1274257(B) |
申请公布日期 |
1997.07.15 |
申请号 |
IT1995MI00359 |
申请日期 |
1995.02.24 |
申请人 |
PIRELLI COORDINAMENTO PNEUMATICI S.P.A. |
发明人 |
NAHMIAS MARCO;SCHRAFFT ROBERT;JOSEPH CHRISTA |
分类号 |
B60C1/00;C08J3/20;C08J3/22;C08J3/24;C08K3/00;C08K3/36;C08K5/00;C08K5/54;C08L21/00;(IPC1-7):C08G;B60C |
主分类号 |
B60C1/00 |
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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