Method for producing α-olefin/(meth)acrylic acid ester copolymer
AssigneesJapan Polyethylene Corporation, Japan Polypropylene Corporation
InventorsYohei Konishi, Hiromasa Tanahashi, Hisashi Ohtaki, Naomasa Sato
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Abstract
A catalyst configured to be handled more easily than conventional catalysts and configured to copolymerize an α-olefin and a (meth)acrylic acid ester with high activity. The objects are achieved by polymerization using an olefin polymerization catalyst which contains a metal complex obtained by reacting a ligand having a specific structure and a transition metal compound containing a transition metal selected from nickel or palladium having a specific structure.
Claims12
A method for producing an α-olefin/(meth)acrylic acid ester copolymer, comprising copolymerizing an α-olefin and a (meth)acrylic acid ester in presence of an olefin polymerization catalyst containing a metal complex, wherein the metal complex is obtained by reacting a compound of formula (A) or (B):
- with a transition metal compound of formula (C):
- where M is a transition metal countercation selected from nickel or palladium, and in the formulae (A) to (C), R3 to R11, E1 and X1 are as follows:
- X1 represents oxygen or sulfur;
- E1 represents phosphorus, arsenic or antimony;
- R3 and R4 each independently represents a hydrocarbon group having 5 to 30 carbon atoms and optionally containing a heteroatom;
- R5 to R8 each independently represents a hydrogen atom, a halogen, a hydrocarbon group having 1 to 30 carbon atoms and optionally containing a heteroatom, OR2, CO2R2, CO2M′, C(O)N(R1)2, C(O)R2, SR2, SO2R2, OSO2R2, P(O)(OR2)2-y(R1)y, CN, NHR2, N(R2)2, Si(OR1)3-x(R1)x, OSi(OR1)3-x(R1)x, NO2, SO3M′, PO3M′2, P(O)(OR2)2M′ or an epoxy-containing group, where R1 represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms;
- R2 represents a hydrocarbon group having 1 to 20 carbon atoms;
- M′ represents an alkali metal, ammonium, quaternary ammonium or phosphonium;
- x represents an integer of from 0 to 3;
- and y represents an integer of from 0 to 2;
- R9 to R11 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms and optionally containing a heteroatom, and
- wherein, in the formula (A),
- Z represents a hydrogen atom or a leaving group, and
- m represents a valence of Z.
A method for producing an α-olefin/(meth)acrylic acid ester copolymer, comprising copolymerizing an α-olefin and a (meth)acrylic acid ester in presence of an olefin polymerization catalyst containing a metal complex represented by formula (D):
- wherein R3 to R11, E1, X1 and M are as follows:
- M represents nickel or palladium;
- X1 represents oxygen or sulfur;
- E1 represents phosphorus, arsenic or antimony;
- R3 and R4 each independently represents a hydrocarbon group having 5 to 30 carbon atoms and optionally containing a heteroatom;
- R5 to R8 each independently represents a hydrogen atom, a halogen, a hydrocarbon group having 1 to 30 carbon atoms and optionally containing a heteroatom, OR2, CO2R2, CO2M′, C(O)N(R1)2, C(O)R2, SR2, SO2R2, OSO2R2, P(O)(OR2)2-y(R1)y, CN, NHR2, N(R2)2, Si(OR1)3-x(R1)x, OSi(OR1)3-x(R1)x, NO2, SO3M′, PO3M′2, P(O)(OR2)2M′ or an epoxy-containing group, where R1 represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms;
- R2 represents a hydrocarbon group having 1 to 20 carbon atoms;
- M′ represents an alkali metal, ammonium, quaternary ammonium or phosphonium;
- x represents an integer of from 0 to 3;
- and y represents an integer of from 0 to 2;
- and
- R9 to R11 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms and optionally containing a heteroatom.
Dependencies are inferred from the claim text.