Toho Titanium Co., Ltd.

Toho Catalyst Co., Ltd.

Motoki Hosaka

Toshihiko Sugano

Maki Sato

Noriaki Nakamura

Kenji Goto

Hayashi Ogawa

Toshiya Uozumi

Shingo Yamada

Isa Nishiyama

Tsutomu Uzawa

Takefumi Yano

Hiroyuki Kono

Kunihiko Tashino

Kohei Kimura

Takuma Yoshida

Hidetoshi Umebayashi

Yukihiro Suzuki

Masahiko Matsuo

Akira Saito

Minoru Terano

Makoto Nakano

Takuo Kataoka

Kazuhiro Ishii

Tetsuo Ohtsuka

Koichiro Hisano

Hideo Tsukamoto

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.

Method for producing solid catalyst component for olefin polymerization, olefin polymerization catalyst, method for producing olefin polymerization catalyst, and method for producing olefin polymer

High stereoregularity, highly active catalytic performance, and good hydrogen response can be obtained by homopolymerizing propylene in the presence of a catalyst that includes a solid catalyst component including titanium, magnesium, a halogen, a carbonate compound represented by the following formula, and a diether compound. Excellent polymerization behavior can also be obtained when effecting random copolymerization or block copolymerization.R&#x2014;O&#x2014;C(&#x2550;O)&#x2014;O&#x2014;Z&#x2014;O&#x2014;R&#x2003;&#x2003;(1)wherein Rand Rare a hydrocarbon group or a substituted hydrocarbon group having 1 to 24 carbon atoms, or a heteroatom-containing group, provided that Rand Rare either identical or different, and Z is a linking group that links two oxygen atoms through a carbon atom or a carbon chain.

Solid catalyst component for olefin polymerization, method for producing the same, olefin polymerization catalyst, and method for producing olefin polymer

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)R(CH)(COOR)(COOR)&#x2003;&#x2003;(1) andan organic compound represented the following general formula (2)RRC&#x2550;C (COOR)(COOR)&#x2003;&#x2003;(2)wherein Ris a halogen atom or an alkyl group, Rand Rare a linear alkyl group, Rand Rare 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 Rand Rare 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.

Method for producing solid catalyst component for olefin polymerization, catalyst for olefin polymerization and a process for propylene polymerization

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.

Method for producing solid catalyst component containing vanadium compound for olefin polymerization, olefin polymerization catalyst, and method for producing olefin polymer

A method for producing a propylene-based block copolymer ensures excellent olefin polymerization activity and activity with respect to hydrogen (hydrogen response) during polymerization, and produces a propylene-based block copolymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes copolymerizing propylene and an &#x3b1;-olefin in the presence of a catalyst that includes (I) a solid catalyst component that includes titanium, magnesium, a halogen, and a compound represented by RO&#x2014;C(&#x2550;O)&#x2014;O&#x2014;Z&#x2014;OR, and (II) a compound represented by RAlQ, to obtain a propylene-based block copolymer.

Method for producing propylene block copolymer

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.

Solid catalyst component for polymerization of olefins, catalyst for polymerization of olefins, and method for producing olefin polymer

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 selected from specific aromatic dicarboxylic diesters 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.

Method for producing solid catalyst component for use in polymerization of olefin, catalyst for use in polymerization of olefin, and method for producing olefin polymer

A method 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 into contact with each other to effect a reaction, followed by washing; a second step that brings one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction; and a third step that brings a tetravalent titanium halide compound and one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.

Production method for solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production method for polymerized olefins

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.

An olefin polymer that is obtained using an olefin polymerization catalyst that includes a solid catalyst component for olefin polymerization that includes titanium, magnesium, a halogen, and an ester compound (A) represented by the following formula (1): RRC&#x2550;C(COOR)(COOR), an organoaluminum compound, and an optional external electron donor compound, exhibits primary properties (e.g., molecular weight distribution and stereoregularity) similar to those of an olefin polymer obtained using a solid catalyst component that includes a phthalic ester as an electron donor.

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

A solid catalyst component for olefin polymerization includes titanium, magnesium, a halogen, a compound represented by (R)CH(COOR)(COOR), and a compound represented by RO&#x2014;C(&#x2550;O)&#x2014;O&#x2014;Z&#x2014;OR. 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.

Solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production method for polymerized olefins

A catalyst for polymerization of olefins formed from (A) a solid catalyst component containing magnesium, titanium, halogen, and an electron donor compound, (B) an organoaluminum compound shown by the formula, RAlQ, and (C) an aminosilane compound shown by the formula, RSi(NRR); and a process for producing a catalyst for polymerization of olefins in the presence of the catalyst are provided. A novel aminosilane compound, a catalyst component for polymerization of olefins having a high catalytic activity, capable of producing polymers with high stereoregularity in a high yield, and exhibiting an excellent hydrogen response, a catalyst, and a process for producing olefin polymers using the catalyst are provided.

Aminosilane compounds, catalyst components and catalysts for olefin polymerization, and process for production of olefin polymers with the same

A solid catalyst component for olefin polymerization is produced by causing (a) a solid component that includes magnesium, titanium, a halogen, and an electron donor, (b) an aminosilane compound shown by the following general formula (1), and (c) at least one organosilicon compound selected from an organosilicon compound shown by the following general formula (2-A) and an organosilicon compound shown by the following general formula (2-B) to come in contact with each other. A polymer having high stereoregularity is produced in high yield while achieving a high melt flow rate due to hydrogen by polymerizing an olefin in the presence of a catalyst that includes the solid catalyst component.RSi(NRR)&#x2003;&#x2003;(1)[CH&#x2550;CH&#x2014;(CH)]SiR&#x2003;&#x2003;(2-A)RSi(OR)&#x2003;&#x2003;(2-B)

Solid catalyst component and catalyst for polymerization of olefins, and  process for production of olefin polymers using same

A polymer having high catalyst activity, excellent hydrogen response, high stereoregularity and high yield can be obtained by polymerizing olefins in the presence of a catalyst for olefin polymerization comprising (A) a solid catalyst component containing magnesium, titanium, a halogen, and an electron donor compound, (B) an organoaluminum compound shown by the formula RAlQ(RRN), and (C) an aminosilane compound shown by the formula (RHN)RSi(OR).

Catalyst component, catalyst for olefin polymerization, and process for producing olefin polymer using catalyst

A catalyst for olefin polymerization comprising (A) a solid catalyst component prepared by causing (a) a magnesium compound, (b) a tetravalent titanium halide compound, and (c) an electron donor compound to come in contact with each other, (B) an organoaluminum compound of the general formula RAlQ, and (C) an oligomer of an organosilicon compound of the following chemical formula; R&#x2014;(RRSiO)&#x2014;Rcan produce olefin polymers having higher stereoregularity and a broader molecular weight distribution in a higher yield than conventional catalysts.

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Chigasaki, Japan

Motoki Hosaka