Showa Denko K.k.

The University of Tokyo

Japan Polyethylene Corporation

Resonac Corporation

Junichi Kuroda

Yoshikuni Okumura

Kyoko Nozaki

Shingo Ito

Shinya Hayashi

Minoru Kobayashi

Yuichiro Yasukawa

Yusuke Ota

Hiroyuki Shimizu

Takaaki Hattori

Masahiro Uematsu

Yumiko Minami

Masafumi Koyano

Brad Carrow

Yusuke Mitsushige

The present invention provides: a catalyst which has high activity and enables the production of an olefin polymer that has a polar group; and a method for producing the polymer. A catalyst for olefin polymerization, which contains a metal complex represented by general formula (C1); and a method for producing an ethylene (co)polymer, wherein (1) ethylene is polymerized, (2) ethylene and an olefin having a polar group represented by general formula (1) are copolymerized, or (3) ethylene, an olefin having a polar group represented by general formula (1) and another monomer are copolymerized, with use of the above-described catalyst. (In the formulae, the symbols are as defined in the description; and at least one of Rand Rrepresents a 9-fluorenyl analogous group represented by general formula (2).

Catalyst for olefin polymerization and method for producing polar group—containing olefin polymer

The present invention pertains to a method for producing a copolymer of ethylene and an allyl monomer having a polar group represented by general formula (1), or a copolymer of ethylene, an allyl monomer having a polar group represented by general formula (1), and other monomers, wherein the copolymer is produced in the presence of a boron compound having a boron-hydrogen bond or a boron-carbon bond (for example, a compound represented by general formula (2)) by using a metal complex represented by general formula (C1) as a polymerization catalyst (the symbols in the formulas are as described in the description). According to the present invention, a copolymer of ethylene and an allyl monomer can be efficiently produced with high catalytic activity, wherein the copolymer has a polar group and can be used in various applications.

Method for producing copolymer of allyl monomer having polar group

A gas-barrier resin (A) having an oxygen permeability coefficient of 1.0&#xd7;10(cm&#xb7;cm/cm&#xb7;s&#xb7;Pa) or less; and a copolymer (B) containing monomer structural units represented by the formula (1), the formula (2), and the formula (3): where: Rrepresents a hydrogen atom or a methyl group; Rrepresents a hydrocarbon group having 1 to 20 carbon atoms that may be substituted with a halogen atom, a hydroxy group, an alkoxy group, or an amino group; 1, m, and n represent numerical values representing molar proportions of the respective monomer structural units, and n may represent 0; and p represents an integer of from 1 to 4, wherein a ratio of a mass of the copolymer (B) to a total mass of the gas-barrier resin (A) and the copolymer (B) is from 1 mass % to 40 mass %.

Gas-barrier resin composition and use thereof

A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification. 

Catalyst for olefin polymerization and production method for polar group-containing olefin-based polymers

The present invention relates to a method for producing a copolymer of ethylene and an allyl monomer that is represented by formula (1) and has a polar group, or a copolymer of ethylene, the allyl monomer that is represented by formula (1) and has a polar group, and another monomer. This production method is characterized by using a metal complex, which is represented by general formula (C1), as a polymerization catalyst and by having a silane compound, which is represented by general formula (2) and has a silicon-hydrogen bond, coexist with the metal complex. (In the formulae, the symbols are as defined in the description.) According to the present invention, a copolymer of an allyl monomer that has a polar group is able to be produced with high catalytic activity, said copolymer being capable of having various applications. 

Method for producing copolymer of polar group-containing allyl monomer

The present invention relates to a method for producing a copolymer of ethylene and a polar group-containing olefin using as a catalyst a metal complex of group 10 elements having a structure represented by formula (C4) and (C5) (in the formula, 'Men' represents a menthyl group and 'Me' represents a methyl group). The method of the present invention makes it possible to produce a polar group-containing olefin polymer available for various applications, as being a high molecular weight body, which has been difficult to produce, and to produce the polymer in a molecular weight range such that the polymer has good moldability.

Method for producing polar group-containing olefin polymer

The present invention relates to a method for producing a homopolymer of olefin represented by formula (1): CH&#x2550;CHR(Ris a hydrogen atom or hydrocarbon group having 1 to 20 carbon atoms) or a copolymer of two or more thereof or a method for producing a copolymer of olefin represented by formula (1) with olefin containing a polar group represented by formula (2): CH&#x2550;CHRR(Ris a hydrogen atom or methyl group, Ris &#x2014;COOR, &#x2014;CN, &#x2014;OCOR, &#x2014;OR, &#x2014;CH&#x2014;OCOR, &#x2014;CHOH, &#x2014;CH&#x2014;N(R)or &#x2014;CH-Hal (R, Rand Hal have the same meanings as stated in the description), using as a catalyst a metal complex of group 10 elements in the periodic system typified by the structure represented by formula 1 ('Men' represents a menthyl group and 'Me' represents a methyl group). The present invention enables the production of high molecular weight polymers of the polar group-containing monomers such as polar group-containing allyl compounds. 

Production method of polar group-containing olefin polymers

The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers comprising monomer units represented by formulae (3) and (4) (in the formulae, Rrepresents a hydrogen atom (H) or hydrocarbon group having 1 to 6 carbon atoms; Rrepresents &#x2014;OH, &#x2014;OCOR(Rrepresents hydrocarbon group having 1 to 5 carbon atoms), &#x2014;N(R)(Rrepresents a hydrogen atom or hydrocarbon group having 1 to 5 carbon atoms); and n and m are a value representing the molar ratio of each of the monomer units), which has few branches and unsaturated group at the molecular end, by copolymerizing olefin and an allyl compound using a metal complex of group 10 elements in the periodic system represented by formula (I) as a catalyst. The present invention enables providing a high-molecular-weight copolymer of polar group-containing allyl monomers, which copolymer has a novel structure, is available for various applications and has been considered to be difficult to synthesize by other polymerization methods such as radical polymerization; and a method for producing the same.

Catalyst for synthesizing polyolefins

The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers including monomer units represented by formulae (3) and (4) (in the formulae, Rrepresents a hydrogen atom (H) or hydrocarbon group having 1 to 6 carbon atoms; Rrepresents &#x2014;OH, &#x2014;OCOR(Rrepresents hydrocarbon group having 1 to 5 carbon atoms), &#x2014;N(R)(Rrepresents a hydrogen atom or hydrocarbon group having 1 to 5 carbon atoms); and n and m are a value representing the molar ratio of each of the monomer units), which has few branches and unsaturated group at the molecular end, by copolymerizing olefin and an allyl compound using a metal complex of group 10 elements in the periodic system represented by formula (I) as a catalyst 

Copolymer of allyl monomer containing polar group

The present invention relates to a method for producing a high-molecular-weight copolymer of polar group-containing allyl monomers including monomer units represented by formulae (3) and (4) (in the formulae, Rrepresents a hydrogen atom (H) or hydrocarbon group having 1 to 6 carbon atoms; Rrepresents &#x2014;OH, &#x2014;OCOR(Rrepresents hydrocarbon group having 1 to 5 carbon atoms), &#x2014;N(R)(Rrepresents a hydrogen atom or hydrocarbon group having 1 to 5 carbon atoms); and n and m are a value representing the molar ratio of each of the monomer units), which has few branches and unsaturated group at the molecular end, by copolymerizing olefin and a polar group-containing allyl compound using a metal complex of group 10 elements in the periodic system represented by formula (I) as a catalyst. 

Production method of copolymer of allyl monomer containing polar group

The present invention provides a metal complex of group 10 elements of the periodic table having a carboxylate structure represented by formula (C2); a catalyst for polymerization of olefin mainly comprising the metal complex; and a method for producing polymers by homopolymerizing olefin represented by formula (1), polymerizing two or more kinds of the above olefin, or copolymerizing olefin represented by formula (1) with polar group-containing olefin represented by formula (2) (the meaning of the symbols are as set forth in the description) using the catalyst. A metal complex of group 10 elements of the periodic table, in which all of the coordinating atoms to the metal are a hetero atom is stable and useful as a catalyst component for olefin polymerization, and can be used for a long time in homopolymerization of olefin or copolymerization of two or more kinds of olefin. 

Growing community of inventors

Oita, Japan

Junichi Kuroda