Katalysator och foerfarande foer polymerisering av alfa-olefiner
An active catalyst in the polymerization of alpha-olefins is obtained by: (i) bringing a dialkyl magnesium, or an alkyl magnesium halide into contact with a silicon or tin halide, in solution in an inert organic solvent, until a granular solid precipitates off; (ii) suspending said solid precipitate...
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Main Authors | , , , |
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Format | Patent |
Language | Finnish |
Published |
16.03.1994
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | An active catalyst in the polymerization of alpha-olefins is obtained by: (i) bringing a dialkyl magnesium, or an alkyl magnesium halide into contact with a silicon or tin halide, in solution in an inert organic solvent, until a granular solid precipitates off; (ii) suspending said solid precipitate in an inert organic solvent and bringing it into contact with a compound which can be defined by the formula: wherein M represents a metal from Group IVB of the Periodic Table of Elements, and each R and Cp has the meaning as reported in the disclosure, in order to form a granular solid catalyst; and (iii) recovering said solid catalyst from the resulting suspension. |
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Bibliography: | Application Number: FI19930003923 |