| 摘要 |
PURPOSE:To obtain a crystalline magnesium halide which has a specified X-ray diffraction pattern and has excellent characteristics as a carrier for a transition metal catalyst for the polymerization of an olefin. CONSTITUTION:The title product is a magnesium halide used as a carrier for a transition metal catalyst, consisting of crystalline MgBrCl which has a maximum intensity at about 7.38Angstrom and relatively intense diffractions at about 7.98, 5.32, 3.57, 3.47 3.26 and 2.90Angstrom in its X-ray diffraction pattern.
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