| 发明名称 |
Process for the preparation of expanded polyvinylarene particles |
| 摘要 |
Process for the preparation of expanded polyvinylarene particles in which polyvinylarene particles pre-expanded to an apparent density do ranging between 600 and 200 kg/m<3> are impregnated by an inorganic gas, and the impregnated particles thus obtained are expanded to an apparent density of at least three times lower than do.
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| 申请公布号 |
EP0987292(A1) |
申请公布日期 |
2000.03.22 |
| 申请号 |
EP19980203097 |
申请日期 |
1998.09.16 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH |
发明人 |
BERGHMANS, MICHEL FLORENTINE JOZEF;BLEIJENBERG, KAREL CORNELIS;MEISAARS, ALPHONSUS CATHARINA GERARDUS |
| 分类号 |
C08J9/22;C08J9/228;(IPC1-7):C08J9/22 |
主分类号 |
C08J9/22 |
| 代理机构 |
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