发明名称 |
PNEUMATIC OBJECT PROVIDED WITH GAS-TIGHT LAYER COMPRISING TWO THERMOPLASTIC ELASTOMERS |
摘要 |
<p>Inflatable article equipped with an elastomer layer impermeable to the inflation gases comprising at least: as first thermoplastic stirene elastomer, at least 50 phr of a copolymer containing polystirene and polyisobutylene blocks, in particular SIBS; as second thermoplastic stirene elastomer, at most 50 phr of a thermoplastic stirene copolymer of unsaturated type, in particular SIS; and optionally an extender oil, in particular polybutene, at a content preferably between 5 and 100 phr. This gastight elastomer layer has very good impermeability properties and a lower hysteresis compared to layers based on butyl rubber. The inflatable article can be, in particular, an inner tube or a pneumatic tire for a motor vehicle.</p> |
申请公布号 |
EP2373740(A1) |
申请公布日期 |
2011.10.12 |
申请号 |
EP20090764190 |
申请日期 |
2009.11.30 |
申请人 |
SOCIETE DE TECHNOLOGIE MICHELIN;MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
LESAGE, PIERRE;ABAD, VINCENT;BARBIER, CECILE;CUSTODERO, EMMANUEL |
分类号 |
C08L53/00;B32B25/04;B60C5/14;C08L53/02 |
主分类号 |
C08L53/00 |
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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