Abstract:
A solid catalyst component for olefin polymerization is produced by bringing a vinylsilane compound (d) into contact with a catalyst component, the catalyst component being a powdery solid component obtained by bringing a magnesium compound (a), a titanium halide compound (b), and an electron donor compound (c) into contact with each other, the electron donor compound (c) being one or more compounds that do not include a phthalic ester structure, and include one or more groups selected from an ester group, a carbonate group, and an ether group, the vinylsilane compound (d) being brought into contact with the catalyst component in a 0.1 to 15-fold molar quantity with respect to the molar quantity (on a titanium atom basis) of the titanium halide compound (b) included in the catalyst component.
Abstract:
A solid catalyst component for olefin polymerization makes it possible to polymerize an olefin with high polymerization activity when used for an olefin polymerization catalyst, and produce an olefin polymer having a low fine powder content, a low coarse powder content, and a low volatile organic compound (VOC) content in high yield. The solid catalyst component for olefin polymerization is produced by suspending (a) a dialkoxymagnesium, and (b) at least one alcohol selected from ethanol, n-propanol, n-butanol, isopropanol, isobutanol, and t-butanol, in an inert organic solvent so that the total amount of the alcohol is 0.5 to 1.5 parts by mass based on 100 parts by mass of the dialkoxymagnesium, to prepare a suspension, and bringing (c) an internal electron donor and (d) a titanium halide compound into contact with the suspension.
Abstract:
A method for producing a solid catalyst component includes bringing a magnesium compound, a titanium halide compound, and one or more internal electron donor compounds into contact with each other to effect a reaction; washing the resulting product with a first inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of 8.0 to 9.0; washing the resulting intermediate product in the absence of the titanium halide compound with a second inert organic wash solvent that includes a hydrocarbon compound and does not have reactivity with the titanium halide compound, but has a solubility parameter (SP) of more than 9.0; and washing the resulting product in the absence of the titanium halide compound with a third inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of less than 8.0.
Abstract:
A solid catalyst component for olefin polymerization, an olefin polymerization catalyst, and a method for producing an olefin polymer, are disclosed. A solid catalyst component for olefin polymerization includes magnesium, a halogen, titanium, vanadium, and an internal electron donor compound selected by organic acid diester. An olefin polymerization catalyst includes the disclosed solid catalyst component for olefin polymerization, an organoaluminum promoter, and an optional external electron donor A method for producing an olefin copolymer includes copolymerizing ethylene and propylene using the disclosed olefin polymerization catalyst.
Abstract:
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds excluding an aromatic dicarboxylic acid diester into contact with each other to effect a reaction, followed by washing; a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing; and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.
Abstract:
A solid catalyst component for olefin polymerization includes titanium, magnesium, a halogen, a compound represented by (R1)kC6H4-k(COOR2)(COOR3), and a compound represented by R4O—C(═O)—O—Z—OR5. The solid catalyst component is a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity.
Abstract:
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds excluding an aromatic dicarboxylic acid diester into contact with each other to effect a reaction, followed by washing; a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing; and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.
Abstract:
A method for producing a propylene-based block copolymer produces a propylene-based copolymer that exhibits excellent stereoregularity, rigidity, and impact resistance in a convenient and efficient manner while achieving high polymerization activity. The method for producing a propylene-based block copolymer includes bringing a catalyst into contact with propylene, or propylene and an α-olefin, and bringing an electron donor compound into contact with the resulting product to produce a propylene-based block copolymer, the catalyst including a solid catalyst component that includes titanium, magnesium, a halogen, and an internal electron donor compound, a specific organoaluminum compound, and a specific external electron donor compound.
Abstract:
A method for producing a solid catalyst for olefin (co)polymerization includes bringing into contact with each other a magnesium compound, a tetravalent titanium halide compound, an organic compound represented the following general formula (1) R1k(C6H4-k)(COOR2)(COOR3) (1) and an organic compound represented the following general formula (2) R4R5C═C (COOR6)(COOR7) (2) wherein R1 is a halogen atom or an alkyl group, R2 and R3 are a linear alkyl group, R4 and R5 are independently an atom or group selected from a hydrogen atom, halogen, a linear alkyl group, a branched alkyl group a vinyl group, a linear or branched alkenyl group, a cycloalkenyl group, an aromatic hydrocarbon group, and R6 and R7 are independently a linear alkyl group, a branched alkyl group, a vinyl group, a linear or branched alkenyl group a cycloalkyl group, a cycloalkenyl group, or an aromatic hydrocarbon group.
Abstract:
A method for producing an olefin polymerization catalyst includes bringing a solid catalyst component for olefin polymerization, a vinylsilane compound, an organosilicon compound, and an organoaluminum compound into contact with each other in an inert organic solvent under an inert gas atmosphere in the absence of a specific vinyl compound, wherein a washing treatment is not performed after the vinylsilane compound has been added to the reaction system, the solid catalyst component includes a magnesium compound, a titanium halide compound, and an electron donor compound that does not include a phthalic acid ester structure, and includes a diol skeleton, and the organosilicon compound does not include a vinyl group, and includes at least one group selected from an alkoxy group and an amino group.