Menetelmä stereosäännöllisten polymeerien valmistamiseksi, joilla on ahtaissa rajoissa oleva molekyylipainojakautuma
Stereoregular polymers having a molecular weight distribution of less than 5.0 and an isotactic index in excess of 96 percent are produced by polymerizing an alpha-olefin having 3 to 8 carbon atoms in a low pressure gas phase fluid bed process at a temperature in excess of 80 DEG C employing a heat...
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Main Authors | , , , |
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Format | Patent |
Language | Finnish Swedish |
Published |
10.01.1995
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | Stereoregular polymers having a molecular weight distribution of less than 5.0 and an isotactic index in excess of 96 percent are produced by polymerizing an alpha-olefin having 3 to 8 carbon atoms in a low pressure gas phase fluid bed process at a temperature in excess of 80 DEG C employing a heat stable catalyst system comprising (a) a solid catalyst component containing magnesium, titanium, halide and a polycarboxylic acid ester containing two coplanar ester groups attached to adjacent carbon atoms, as inside electron donor, (b) an organoaluminum cocatalyst, and (c) a silicon compound containing a silicon-oxygen-carbon linkage, as outside electron donor. |
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Bibliography: | Application Number: FI19880002323 |