Catalyst component for polymerization of olefins
AssigneeToa Nenryo Kogyo Kabushiki Kaisha
InventorsHiroyuki Furuhashi, Tadashi Yamamoto, Masafumi Imai, Hiroshi Ueno
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Abstract
A catalyst component for the polymerization of olefins which is prepared by contacting (1) a contact reaction product of (a) a metal oxide, (b) a dihydrocarbyl magnesium, and (c) a halogen-containing alcohol held with (d) an electron-donating compound, and (e) a titanium compound.
Claims20
A titanium containing supported catalyst component for use in the polymerization of alpha-olefins having three or more carbon atoms comprising the product obtained by contacting
- (1) a reaction product comprising
- (a) a metal oxide or a composite of metal oxides of Group II, III, or IV of the Periodic Table,
- (b) a dihydrocarbyl magnesium compound, mixtures thereof or a complex with an organic compound of aluminum, boron, beryllium, or zinc, and
- (c) a chlorine-containing monohydric or polyhydric alcohol, with
- (d) an electron-donating compound selected from the group consisting of carboxylic acids, carboxylic acid anhydrides, carboxylic acid esters, carboxylic acid halides, alcohols and ethers and
- (e) a tetravalent titanium compound.
A titanium containing supported catalyst component for use in the polymerization of alpha-olefins having three or more carbon atoms comprising the product obtained by contacting
- (1) a reaction product comprising
- (a) SiO.sub.2,
- (a) n-butylethyl magnesium, and
- (c) 2,2,2-trichloroethanol, with
- (2)
- (d) di-n-butylphthalate, and
- (e) titanium tetrachloride.
A titanium containing supported catalyst component for use in the polymerization of alpha-olefins having from 3 to 6 carbon atoms comprising the product obtained by contacting
- (1) a reaction product effected by stirring or by mechanically comminuting
- (a) silica,
- (b) a dialkyl magnesium compound wherein the alkyl groups can be the same or different and each alkyl group can have from 1 to 20 carbon atoms, and
- (c) a chlorine-containing monohydric or polyhydric alcohol, with
- (2)
- (d) one of an aromatic carboxylic acid ester, aromatic carboxylic acid halide, aromatic carboxylic acid and aromatic carboxylic acid anhydride, and
- (e) titanium tetrachloride.
Dependencies are inferred from the claim text.