发明名称 |
OBJET PNEUMATIQUE POURVU D'UNE COUCHE ELASTOMERE ETANCHE AUX GAZ DE GONFLAGE A BASE D'UN ELASTOMERE THERMOPLASTIQUE SOUS FORME D'UN COPOLYMERE A BLOCS |
摘要 |
The invention relates to a pneumatic object provided with an elastomer layer sealed against inflation gases, said elastomer layer comprising as, majority elastomer, a thermoplastic elastomer in the form of a block copolymer which includes: a) an elastomer block comprising at least units from isobutylene, and having a glass transition temperature no higher than -20 °C; and b) one or more thermoplastic blocks in the form of a statistical copolymer comprising units from at least one polymerisable monomer and units from β-pinene, the content of said units from β-pinene varying from 0.5 to 3 mol % relative to the number of moles of units of the block copolymer, and said block copolymer having a mean molecular weight of 120 to 220 kg/mol. The invention also relates to a method for sealing a pneumatic object against inflation gases. |
申请公布号 |
FR3033567(B1) |
申请公布日期 |
2017.03.10 |
申请号 |
FR20150051938 |
申请日期 |
2015.03.09 |
申请人 |
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN;MICHELIN RECHERCHE ET TECHNIQUE S.A. |
发明人 |
GREIVELDINGER MARC;CUSTODERO EMMANUEL |
分类号 |
C08L53/00;B60C1/00;B60C5/14;C08L23/20;C08L91/00 |
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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