摘要:
A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-donating group, or a group containing an electron-donating group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.
摘要:
There are provided an ethylene-propylene copolymer having the following structural characteristics, and a polypropylene resin composition comprising the above copolymer and polypropylene having a melting temperature of 160° C. or higher: (1) its propylene content is 20 to 60% by mol; (2) its product of a monomer reactivity ratio is less than 2.5; (3) its intrinsic viscosity is more than 1.0 dl/g; (4) its molecular weight distribution is more than 3; (5) its glass transition temperature is lower than −40° C.; (6) its heat of crystallization is less than 5.0 J/g; (7) in a temperature rising elution fractionation method, its elution amount is 60% by weight or more in a temperature range of lower than 10° C., its elution amount is 3% by weight or more in a temperature range of 10° C. to lower than 55° C., and its elution amount is 5% by weight or less in a temperature range of 83° C. or higher, provided that the total elution amount is 100% by weight; and (8) an intensity ratio of a racemic peak to a meso peak in an ethylene-propylene binding moiety in a 13C-NMR spectrum is 0.01 to 0.7.
摘要:
A process for producing an olefin copolymerization catalyst, comprising the step of contacting, with one another, (A) a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom, (B) an organoaluminum compound and/or organoaluminumoxy compound, and (C) a nitrogen-containing aromatic heterocyclic compound, whose one or more carbon atoms adjacent to its nitrogen atom are linked to an electron-withdrawing group, or a group containing an electron-withdrawing group; and a process for producing an olefin copolymer using the an olefin copolymerization catalyst.
摘要:
A transition metal complex represented by formula [1], and its production process; a substituent-carrying fluorene compound represented by formula [2], and its production process; an olefin polymerization catalyst component comprising the complex; an olefin polymerization catalyst obtained by contacting the catalyst component with a defined aluminum compound and/or a defined boron compound; and a production process of an olefin polymer using the catalyst:
摘要:
A production process is provided for an olefin polymerization catalyst component precursor, including the steps of (I) adding an organomagnesium compound to a solution containing a solvent, a Si—O bond-containing silicon compound, and a defined titanium compound, under agitation, and continuing the agitation until a magnesium concentration in a liquid phase of a reaction mixture decreases to 9 ppm by weight or lower, and (II) solid-liquid separating the reaction mixture. A production process is also provided for an olefin polymerization catalyst component using the above precursor. Further, producing process is provided for an olefin polymerization catalyst using the above catalyst component. Still further, a production process is provided for an olefin polymer using the above catalyst.
摘要:
A transition metal complex represented by the general formula [1]; a catalyst component for olefin polymerization comprising said transition metal complex; a catalyst for olefin polymerization using said transition metal complex as a catalyst component for olefin polymerization; a process for producing an olefin polymer comprising the step of polymerizing an olefin in the presence of said catalyst for olefin polymerization; a substituent-carrying fluorene compound; a process for producing said substituent-carrying fluorene compound; and a process for producing said transition metal complex using said substituent-carrying fluorene compound: wherein M is the group 4 transition metal atom in the periodic table of elements; A is the group 16 atom therein; J is the group 14 atom therein; R1, R2, R3, R4, R5, R6, X1 and X2 are independently of one another (1) a substituent selected from the group consisting of (1-1) an alkyl group having 1 to 20 carbon atoms, which may be substituted by a halogen atom, (1-2) an aralkyl group having 7 to 20 carbon atoms, which may be substituted by a halogen atom, (1-3) an aryl group having 6 to 20 carbon atoms, which may be substituted by a halogen atom, (1-4) a substituent-carrying silyl group having 1 to 20 carbon atoms, which substituent is a hydrocarbyl group, and said hydrocarbyl group may be substituted by a halogen atom, (1-5) a disubstituent-carrying amino group having 2 to 20 carbon atoms, which substituent is a hydrocarbyl group, and said hydrocarbyl group may be substituted by a halogen atom, (1-6) an alkoxy group having 1 to 20 carbon atoms, which may be substituted by a halogen atom, (1-7) an aralkyloxy group having 7 to 20 carbon atoms, which may be substituted by a halogen atom, and (1-8) an aryloxy group having 6 to 20 carbon atoms, which may be substituted by a halogen atom, (2) a halogen atom or (3) a hydrogen atom; R1 and R2, R2 and R3, and R3 and R4 may be linked to each other, respectively, to form respective rings; R5 and R6 may be linked to each other to form a ring; R7, R8, R9 and R10 are independently of one another (1) a substituent selected from the group consisting of (1-1) an alkyl group having 1 to 20 carbon atoms, which may be substituted by a halogen atom, (1-2) an aralkyl group having 7 to 20 carbon atoms, which may be substituted by a halogen atom, (1-3) an aryl group having 6 to 20 carbon atoms, which may be substituted by a halogen atom, (1-4) a substituent-carrying silyl group having 1 to 20 carbon atoms, which substituent is a hydrocarbyl group, and said hydrocarbyl group may be substituted by a halogen atom, (1-5) a disubstituent-carrying amino group having 2 to 20 carbon atoms, which substituent is a hydrocarbyl group, and said hydrocarbyl group may be substituted by a halogen atom, (1-6) an alkoxy group having 1 to 20 carbon atoms, which may be substituted by a halogen atom, (1-7) an aralkyloxy group having 7 to 20 carbon atoms, which may be substituted by a halogen atom, and (1-8) an aryloxy group having 6 to 20 carbon atoms, which may be substituted by a halogen atom, (2) a halogen atom or (3) a hydrogen atom; at least two of R7, R8, R9 and R10 are the substituent selected from the above-mentioned group or a halogen atom; R7 and R8 may be linked to each other to form a ring; and R9 and R10 may be linked to each other to form a ring.