Patent ID: 9340628
Filing Date: 2016-05-17
CPC Classification: C08F

Claim Text:
1. A process for producing an olefin polymer, having a step comprising feeding an olefin polymerization catalyst solution, which is obtained by mixing (A) a metallocene compound represented by the general formula [A1] and/or a metallocene compound represented by the general formula [A2], (B) a compound which is a compound that reacts with the metallocene compound (A) to form an ion pair, and is represented by the general formula [B1], and (C) an organoaluminum compound (C-1) and/or an organoaluminum oxy compound (C-2), with (D) a saturated hydrocarbon solvent under the following conditions (i) to (iv), to a polymerization reactor and solution-polymerizing an olefin in the polymerization reactor; (i) the amount of the metallocene compound (A) added to 1 liter of the saturated hydrocarbon solvent (D) is 0.02 to 0.6 mmol, (ii) the molar ratio ((C)/(A)) of an aluminum atom in the compound (C) added to the saturated hydrocarbon solvent (D) to the metallocene compound (A) is 33 to 5000, (iii) the amount of an aluminum atom in the compound (C) added to 1 liter of the saturated hydrocarbon solvent (D) is 3 to 1000 mmol, and (iv) the molar ratio ((B)/(A)) of the compound (B) added to the saturated hydrocarbon solvent (D) to the metallocene compound (A) is 1 to 15; wherein, in the formulas [A1] and [A2], M is an atom of the periodic table Group 4 or Group 5, Q is a halogen atom, a hydrocarbon group, a halogenated hydrocarbon group, a neutral conjugated or non-conjugated diene, an anionic ligand or a neutral ligand capable of being coordinated with a lone electron pair, j is an integer of 1 to 4, when j is an integer of 2 or greater, plural Q are the same as or different from each other, and Cp Y in the formula [A2] is a divalent hydrocarbon group of 1 to 30 carbon atoms, a divalent halogenated hydrocarbon group of 1 to 20 carbon atoms, a divalent silicon-containing group, a divalent germanium-containing group, a divalent tin-containing group, —O—, —CO—, —S—, —SO—, —SO wherein, in the formula [B1], R e+ is carbenium cation, and R f to R i are each independently a hydrocarbon group of 1 to 20 carbon atoms or a halogenated hydrocarbon group of 1 to 20 carbon atoms.