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AssigneeSumitomo Chemical Company, Limited
InventorsShin-Ichi Kumamoto, Makoto Satoh, Hideki Ohshima
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There are provided; (i) a solid catalyst component obtained by contacting a trivalent titanium atom-containing solid catalyst component precursor (C) with a halogeno compound (A) of the 13 (IIIa) or 14 (IVa) group of elements in the periodic table of the elements and an electron donor (B), or a solid catalyst component obtained by contacting an intermediate product with a titanium-halogen bond-carrying compound (D), the intermediate product being obtained by contacting the solid catalyst component precursor (C) with a halogeno compound (A) of the 14 (IVa) group of elements in the periodic table of the elements and the electron donor (B), or a solid catalyst component comprising a magnesium atom, a titanium atom, a halogen atom and an electron donor and having a relative surface area of not more than 30 m2/g, the catalyst component being superior in a particle form, (ii) a catalyst comprising the solid catalyst component and an organoaluminum compound, the catalyst being high in polymerization activity, so that there is no need to remove a catalyst residue from a polymer obtained after the polymerization, and (iii) a process for producing an olefin polymer using the catalyst, the polymer produced being superior in powder properties and low in a content of lower molecular weight components.
A solid catalyst component for olefin polymerization, which is obtained by contacting a solid catalyst component precursor (C) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group, with a halogeno compound (A) of the 13 (III a) or 14 (IVa) group of elements in the periodic table of the elements, and an electron donor (B).
A catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I) for olefin polymerization, which is obtained by contacting a solid catalyst component precursor (C) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group, with a halogeno compound (A) of the 13 (IIIa) or 14 (IVa) group of elements in the periodic table of the elements, and an electron donor (B).
A process for producing an olefin polymer, which comprises polymerizing an olefin with a catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I) for olefin polymerization, which is obtained by contacting a solid catalyst component precursor (C) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group, with a halogeno compound (A) of the 13 (III a) or 14 (IVa) group of elements in the periodic table of the elements, and an electron donor (B)
A solid catalyst component for olefin polymerization, which is obtained by contacting an intermediate product with a compound (D) having a titanium-halogen bond, the intermediate product being obtained by contacting:
A catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I′) for olefin polymerization, which is obtained by contacting an intermediate product with a compound (D) having a titanium-halogen bond, the intermediate product being obtained by contacting:
A process for producing an olefin polymer, which comprises polymerizing an olefin with a catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I′) for olefin polymerization, which is obtained by contacting an intermediate product with a compound (D) having a titanium-halogen bond, the intermediate product being obtained by contacting:
A solid catalyst component for olefin polymerization comprising a magnesium atom, a titanium atom, a halogen atom and an electron donor, and having a relative surface area of 30 m2/g or less.
A catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I″) for olefin polymerization comprising a magnesium atom, a titanium atom, a halogen atom and an electron donor, and having a relative surface area of 30 m2/g or less.
A process for producing an olefin polymer, which comprises polymerizing an olefin with a catalyst for olefin polymerization, which comprises an organoaluminum compound (II) and a solid catalyst component (I″) for olefin polymerization comprising a magnesium atom, a titanium atom, a halogen atom and an electron donor, and having a relative surface area of 30 m2/g or less.
Dependencies are inferred from the claim text.