Idemitsu Kosan Company, Limited

Matsushita Electric Industrial Co., Ltd.

Idemitsu Petrochemical Co., Ltd.

Shojiro Tanase

Takanori Sadashima

Nobuhiro Yabunouchi

Kiyokazu Katayama

Takehito Konakazawa

Hideaki Noda

Hideo Funabashi

Kenji Tanaka

Masahiko KJuramoto

A solid catalyst component for olefin polymerization in which the molar ratio of residual alkoxy groups to supported titanium is 0.60 or less is obtained by reacting the following compound (a1) with the following compound (b1) at a hydroxyl group/magnesium molar ratio of 1.0 or more, reacting the reaction mixture with the following compound (c1) at a halogen/magnesium molar ratio of 0.20 or more, reacting the resultant reaction mixture with the following compounds (d1) and (e) at a temperature of 120&#xb0; C. or higher but 150&#xb0; C. or lower, washing the reaction mixture with an inert solvent, reacting the reaction mixture with the following compound (e) again at the above temperature and washing the reaction mixture with an inert solvent, whereby there can be provided the solid catalyst component for olefin polymerization and a catalyst for olefin polymerization which have high polymerization activity and give an olefin polymer having a less residual Cl content and being excellent in stereoregularity and powder form and a process for producing an olefin polymer,

Solid catalyst component for olefin polymerization, catalyst for olefin polymerization and process for producing olefin polymer

An olefin polymerization catalyst whose molar ratio of residual alkoxy groups to titanium is 0.60 or less, obtained by reacting (a1) an oxide of an element from Groups II to IV elements and which supports an alcohol-free halogen-containing magnesium compound, with (b1) an alcohol, at a hydroxyl group/magnesium molar ratio of 1.0 or more, then reacting that reaction mixture with (c1) a halogen-containing silicon compound, at a halogen/magnesium molar ratio of 0.20 or more, then reacting the resultant reaction mixture with (d1) an electron-donating compound, and (e) a halogen-containing titanium compound at a temperature of 120&#xb0; C. to 150&#xb0; C., washing the reaction mixture with an inert solvent, reacting the reaction mixture with (e) again at that temperature and washing the reaction mixture with an inert solvent, thereby providing a solid catalyst component for olefin polymerization.

A method for producing magnesium compound represented by formula (I):Mg(OEt)(OMe)&#x2003;&#x2003;(I)where Et is an ethyl group, Me is a methyl group and n is a numerical value of from 0.001 to 1, by reacting metal magnesium, ethanol, methanol and a halogen and/or a halogen-containing compound containing at least 0.0001 gram atom of a halogen atom relative to one gram atom of the metal magnesium. A method of producing a solid catalyst component.

Magnesium compound, solid catalyst component, catalyst for olefin polymerization and method of producing polyolefin

A magnesium compound obtainable by reacting metal magnesium, ethanol, an alcohol having from 3 to 10 carbon atoms and a halogen and/or a halogen-containing compound containing at least 0.0001 gram atom of a halogen atom relative to one gram atom of the metal magnesium at 0 to 70&#xb0; C., which comprises composition represented by the formula (I), and which has a particle diameter Dcorresponding to 50% of cumulative weight fraction of from 4 to 20 &#x3bc;m and a particle size distribution index (P) of P&#x3c;4.0:Mg(OCH)(OR)&#x2003;&#x2003;(I)where n is a numerical value satisfying 0&#x3c;n&#x3c;0.35, Ris CH, and m is an integer of from 3 to 10.

Magnesium compound, solid catalyst component, catalyst for ethylene polymerization and method of producing ethylene polymer

A magnesium compound represented by the formula (I):Mg(OCH)(OR)&#x2003;&#x2003;(I)where Ris CH(where m is an integer of from 3 to 10), and n is a numerical value satisfying 0&#x3c;n&#x3c;0.35; a solid catalyst component for olefin polymer using the magnesium compound; a catalyst for olefin polymer; and methods of producing olefin copolymers such as a propylene-based random copolymer and propylene-based block copolymer by using the catalyst for olefin polymer.

Magnesium compound, catalyst for olefin polymerization and method for producing olefin polymer

A method of producing a magnesium compound by reacting the following components (i), (ii) and (iii):

Magnesium compound, solid catalyst component, olefin polymerization catalyst, and method for producing olefin polymer

A magnesium compound obtained by reacting metallic magnesium having a sphericity (S) of less than 4.00, the sphericity (S) being represented by the following formula (I), an alcohol, and a halogen and/or a halogen-containing compound containing halogen atoms in an amount of 0.0001 gram atom or more relative to one gram atom of the metallic magnesium,=()&#x2003;&#x2003;(I)

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Ichihara, Japan

Shojiro Tanase