发明名称 |
TYRE, THE INNER WALL OF WHICH HAS A LAYER OF SPECIFIC POLYURETHANE FOAM |
摘要 |
<p>The inner wall of a pneumatic tyre, in the vulcanized state, provided with a layer of polyurethane foam, characterized in that the polyurethane is based on a diphenylmethane diisocyanate (MDI), in particular 4,4′-diphenylmethane diisocyanate, and on a polyol having an ethylene oxide content of greater than 50% (% by weight). This specific polyurethane formulation makes it possible to obtain a light foam that efficiently absorbs noise; it has the advantages of being simple and inexpensive and of being easy to process by direct casting of the reactants in the pneumatic tyre of the invention.</p> |
申请公布号 |
KR20150029629(A) |
申请公布日期 |
2015.03.18 |
申请号 |
KR20147033984 |
申请日期 |
2013.05.30 |
申请人 |
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN;MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
PARFONDRY ALAIN;DELFINO ANTONIO |
分类号 |
B29D30/00;B29D30/06;B60C1/00;B60C5/00;B60C19/00 |
主分类号 |
B29D30/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|