Idemitsu Kosan Company, Limited

Idemitsu Petrochemical Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Takanori Sadashima

Shojiro Tanase

Kiyokazu Katayama

Tsuyoshi Ota

Nobuhiro Yabunouchi

Toshio Isozaki

Yasunori Kadoi

Hideo Funabashi

Takehito Konakazawa

Masami Kanamaru

Kenji Tanaka

Hideaki Noda

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 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)

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

A solid catalyst component for olefin polymerization comprising titanium, magnesium and a compound of the general formula (I) wherein Rand Rare independently a Cstraight or branched hydrocarbon group, Ris hydrogen or a Cstraight hydrocarbon group, Ris a Cstraight or branched hydrocarbon group or a Caliphatic cyclic hydrocarbon group when Ris hydrogen, Ris the same Cstraight hydrocarbon group as Rwhen Ris a Cstraight hydrocarbon group, and n is an integer of 1 to 10. A catalyst for olefin polymerization, containing this catalyst component, obtains a high activity with high stereospecificity.

Solid catalyst component for olefin polymerization

Catalyst for bulk polymerization, catalyst for vapor phase polymerization, method of polymerization using these, and olefin polymer obtained with these

Provided are a catalyst for olefin polymer production, which contains an organosilicon compound having a specific structure and with which olefin polymers produced have increased stereospecificity and increased melt fluidity; and a method for producing such olefin polymers.

Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer

Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers

Solid catalyst components for the polymerization of olefins, comprising titanium, magnesium and a compound of general formula (I), wherein R,and R,may be the same or different and each represents a linear or branched hydrocarbon group having 1 to 20 carbon atoms, and n is an integer of 1 to 10, as an electron donor, which are combined with organoaluminum compounds to form polymerization catalysts for the production of olefin polymers. This electron donor has no problems of safety and hygiene, and is inexpensive and easily synthesized. This compound can provide highly active and highly stereoregular solid catalyst components for the polymerization of olefins, catalysts for the polymerization of olefins, and processes for producing olefin polymers.

Solid catalyst components for olefin polymerization, catalysts for olefin polymerization and process for producing olefin polymers

Provided are a solid catalyst component for olefin polymerization and a catalyst comprising the component for olefin polymerization, in which the electron donor is free from the problem of lacking in safety and sanitation, and is inexpensive and easy to produce, and which exhibit high activity in producing olefin polymers with high stereospecificity, and also a method for producing olefin polymers in the presence of the catalyst. The solid catalyst component comprises titanium, magnesium and an electron donor compound of formula (I):

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Ichihara, Japan

Takanori Sadashima