Patent ID: 9051399
Filing Date: 2015-06-09
Classification: C08F

Abstract:
1. A method of producing a polymer in the method for producing a copolymer of olefin and a polar group-containing monomer represented by formula (1): (in the formula, three to five R 1 's may be identical to each other or different from each other, each representing a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms; R 2 represents —OR 2-1 , —SR 2-1 , —OCOR 2-1 where R 2-1 represents a hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms, —N(R 2-2 ) 2 where two R 2-2 's may be identical to each other or different from each other, each representing a hydrogen atom, a hydrocarbon group having 1 to 18 carbon atoms, —COR 2-3 , or —COOR 2-3 where R 2-3 represents a hydrocarbon group having 1 to 10 carbon atoms, or a halogen atom; and n represents 0 or 1), the method comprising using a complex of a metal in Group 10 of the periodic table as a catalyst; and supplying a catalyst solution separated from a polymer after the polymerization reaction to a polymerization reaction system to recycle and re-use the catalyst, wherein the catalyst made of the complex of the metal in Group 10 of the periodic table is represented by formula (C1): (in the formula, M represents a metal atom in Group 10 of the periodic table; L 1 represents a group having a nitrogen atom (N), a phosphorus atom (P), or an arsenic atom (As) and bonded to M at the atom; L 2 represents a group having an oxygen atom (O) or a sulfur atom (S) and bonded to M at the atom; L 3 represents an electron-donating ligand; and R 3 represents a hydrogen atom, an acyloxy group, or a hydrocarbon group which has 1 to 30 carbon atoms and which may be substituted by one or more groups selected from a halogen atom, an alkoxy group, an aryloxy group and an acyloxy group); and wherein the polymer is separated out of the catalyst solution by using a solid-liquid separator selected from the group consisting of a centrifugation separator and a filtration separator.