发明名称 |
NOVEL METHOD FOR PREPARING PRECIPITATED SILICA, PRECIPITATED SILICA HAVING PARTICULAR MORPHOLOGY, GRADING AND POROSITY, AND USE THEREOF PARTICULARLY FOR REINFORCING POLYMERS |
摘要 |
Precipitated silicas including clusters of large primary silica particles having at the surface thereof small primary silica particles, have a specific surface area CTAB (SCTAB) ranging from 60 to 400 m2/g; a cluster average size d50, as measured by XDC grading after ultrasound deagglomeration, such that d50 (nm)>(6214/SCTAB (m2/g)+23; a pore volume distribution such that V(d5-d50)/V(d5-d100)>0.906−(0.0013×SCATB (m2/g)); and a pore size distribution such that Mode (nm)>(4166/SCTAB (m2/g))−9.2; such silicas are useful reinforcing fillers for polymers. |
申请公布号 |
EP2268576(B1) |
申请公布日期 |
2016.12.28 |
申请号 |
EP20090720185 |
申请日期 |
2009.03.09 |
申请人 |
Rhodia Opérations |
发明人 |
ALLAIN, Emmanuelle;HERNANDEZ, Julien;VENTELON, Lionel;GUY, Laurent;AIRIAU, Marc |
分类号 |
C01B33/12;C01B33/193 |
主分类号 |
C01B33/12 |
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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