| 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. |
| 申请公布号 |
PL199951(B1) |
申请公布日期 |
2008.11.28 |
| 申请号 |
PL19990346695 |
申请日期 |
1999.09.14 |
| 申请人 |
NOVA CHEMICALS INTERNATIONAL SA |
发明人 |
BERGHMANS MICHEL FLORENTINE JOZEF;BLEIJENBERG KAREL CORNELIS;METSAARS ALPHONSUS CATHARINA GERARDUS |
| 分类号 |
C08J9/18;C08J9/22;C08J9/228;C08L25/04 |
主分类号 |
C08J9/18 |
| 代理机构 |
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