PRODUCTION OF POLYOLEFIN HAVING WIDE MOLECULAR WEIGHT DISTRIBUTION
PROBLEM TO BE SOLVED: To produce the subject composition having excellent processability and wide molecular weight distribution by reacting an olefin in the presence of a catalytic composition containing a specific organometal compound at a specified temperature under a specific pressure. SOLUTION:...
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| creator | KRISTEN MARC OLIVER DR MUELLER CHRISTIAN LILGE DIETER DR JUTZI PETER PROF DR |
| description | PROBLEM TO BE SOLVED: To produce the subject composition having excellent processability and wide molecular weight distribution by reacting an olefin in the presence of a catalytic composition containing a specific organometal compound at a specified temperature under a specific pressure. SOLUTION: An olefin is reacted in the presence of a catalytic composition containing a metallocene and an organometal compound selected from a group of iron, cobalt, nickel and palladium having catalytic activities, e.g. dimethylsilyl[3-(N,N-dimethylaminoethyl)cyclopentadienylfluorenyl]zirc onium chloride) at 20-350 deg.C under 5-4,000 bar to provide the objective polyolefin. The organometal compound has a functional group of a Lewis base positioned at the position at which the functional group can intramolecularly coordinate with the central metal atom of the organic metal compound. The reaction temperature is regulated so that the value of the molecular weight distribution MW/MN of the obtained polyolefin measured by a gel permeation chromatography may be >=5.0. |
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SOLUTION: An olefin is reacted in the presence of a catalytic composition containing a metallocene and an organometal compound selected from a group of iron, cobalt, nickel and palladium having catalytic activities, e.g. dimethylsilyl[3-(N,N-dimethylaminoethyl)cyclopentadienylfluorenyl]zirc onium chloride) at 20-350 deg.C under 5-4,000 bar to provide the objective polyolefin. The organometal compound has a functional group of a Lewis base positioned at the position at which the functional group can intramolecularly coordinate with the central metal atom of the organic metal compound. 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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | PRODUCTION OF POLYOLEFIN HAVING WIDE MOLECULAR WEIGHT DISTRIBUTION |
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