发明名称 |
PROCESS FOR THE (CO)POLYMERIZATION OF ETHYLENE |
摘要 |
A process for the (co)polymerization ethylene, optionally in mixtures with olefins CH=CHR in which R is hydrogen or a hydrocarbyl radical with 1-12 carbon atoms, carried out in the presence of a catalyst system comprising (A) a solid catalyst component which comprises Mg, halogen an electron donor selected form ethers, esters, or amines, and Ti atoms in an oxidation state such that the weight percentage ratio between Ti<(red)>/Ti(tot) ranges from about 0.05 to about 1; wherein Ti<(red)> is the weight percentage on the solid catalyst component of the Ti atoms having a valence less than 4 and Ti(tot) is the weight percentage on the solid catalyst component of all the Ti atoms and (B) an Al-alkyl compound. The said process is capable to produce ethylene polymers with a reduced oligomers content and/or improved mechanical characteristics.
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申请公布号 |
WO02074818(A1) |
申请公布日期 |
2002.09.26 |
申请号 |
WO2002EP02803 |
申请日期 |
2002.03.11 |
申请人 |
BASELL POLYOLEFINE GMBH;SACCHETTI, MARIO;BRITA, DIEGO |
发明人 |
SACCHETTI, MARIO;BRITA, DIEGO |
分类号 |
C08F4/646;C08F4/649;C08F4/655;C08F10/00;C08F210/16;(IPC1-7):C08F210/16 |
主分类号 |
C08F4/646 |
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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