发明名称 |
Solid catalyst components for olefin polymerization and use thereof. |
摘要 |
<p>An effective catalyst carrier for use in the polymerization of olefins is provided. Said carrier comprises particles of silicon oxide or aluminum oxide satisfying the following characteristics (A) to (E): (A) An average particle diameter as measured by the sieving method is in the range of 20 to 150 mu m. (B) A specific surface area as measured by the BET method is in the range of 150 to 600 m<2>/g. (C) The volume of pores ranging in pore radius from 18 to 1,000 Angstroms as measured by the mercury penetration method is in the range of 0.3 to 2.0 cm<3>/g. (D) An apparent specific gravity as measured according to JIS K6220-6.8 is not lower than 0.32. (E) After the particles classified in the range of between 53 mu m and 75 mu m by the sieving method have been subjected to an ultrasonic disintegration treatment at 40 KHz, 35W, for 20 minutes, the proportion of 50 mu m or smaller particles, i.e., degree of ultrasonic disintegration, is not more than 30%.</p> |
申请公布号 |
EP0669346(A1) |
申请公布日期 |
1995.08.30 |
申请号 |
EP19940301377 |
申请日期 |
1994.02.25 |
申请人 |
NIPPON OIL CO. LTD. |
发明人 |
SANO, AKIRA;MATSUURA, KAZUO;KUBO, KUNIMICHI;TAJIMA, YOSHIO |
分类号 |
C08F4/659;C08F4/6592;C08F10/00;C08F110/06;C08F210/16;(IPC1-7):C08F10/00;C08F4/02 |
主分类号 |
C08F4/659 |
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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