发明名称 |
POLYMERISASJONSKATALYSATOR, SAMT FREMGANGSMAATE VED FREMSTILLING AV DENNE. |
摘要 |
There are disclosed new solid catalyst-forming components for use in preparing catalysts for the stereoregular polymerization of alpha-olefins containing at least 3 carbon atoms, mixtures of alpha-olefins with one another and/or with ethylene, said components being obtained by reacting (a) at least one hydrocarbon-soluble halogenated Ti compound; (b) a product comprising a Mg dihalide obtained by decomposition of an adduct of at least a Mg dihalide and an electron-donor compound present in the adduct in an amount of at least 0.5 mole per mole of Mg dihalide, the decomposition product being characterized in that, in its X-rays powder spectrum, instead of the diffraction line of maximum intensity which appears in the X-rays powder spectrum of the normal Mg dihalide, a halo appears whose intensity maximum is shifted with respect to said line, and (c) an electron-donor compound which does not contain active hydrogen atoms. The electron-donor compound (c) can be reacted with (a) or combined with (b) before the reaction of (a) and (b). Methods for preparing the new catalyst-forming components, catalysts obtained therefrom, and use of the catalysts for the production of crystalline homo- and co-polymers of the alpha-olefins are also disclosed. |
申请公布号 |
NO152608(C) |
申请公布日期 |
1985.10.23 |
申请号 |
NO19770002744 |
申请日期 |
1977.08.03 |
申请人 |
MONTEDISON S.P.A.,;MITSUI PETROCHEMICAL INDUSTRIES, LTD., |
发明人 |
GIANNINI, UMBERTO,;ALBIZZATI, ENRICO,;PARODI, SANDRO, |
分类号 |
C08F4/00;C08F4/02;C08F4/60;C08F4/64;C08F4/654;C08F10/00;(IPC1-7):C08F4/64 |
主分类号 |
C08F4/00 |
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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