FIELD: chemistry.
SUBSTANCE: invention discloses a solid titanium catalyst component (I), containing titanium, magnesium, a halogen, a cyclic ester compound (a) and a cyclic ester compound (b); an olefin polymerisation catalyst containing said catalyst component (I); an olefin polymerisation method using said olefin polymerisation catalyst.
EFFECT: disclosed solid titanium catalyst component, olefin polymerisation catalyst and method of obtaining an olefin polymer enable to obtain an olefin polymer having high stereoregularity, wide molecular-weight distribution with high activity; the obtained polymer not only has unique moulding properties, such as the ability for fast drawing and high plasticity during fast drawing, but high hardness with low cost as well.
6 cl, 2 tbl, 1 dwg, 17 ex
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