Zeon Corporation

Kyoto University

Shigetaka Hayano

Yasuo Tsunogae

Keisuke Ohta

The Ban Hoang

Shingo Okuno

Takeshi Sugimura

Masatsugu Kato

Fumiaki Bando

Mitsuo Sawamoto

Hiroyuki Yonemaru

Makoto Ouchi

Yuki Nakama

Richard Royce Schrock

Keisuke Ota

Tsutomu Nagamune

Taichi Sawaguchi

Hiroyuki Nitadori

Ikuya Mesuda

Yohei Tateishi

Benjamin Autenrieth

Manabu Sugiyama

Hideyuki Kanda

Kentaro Tsubata

Yasuhisa Tsukahara

Provided is a hydrogenated ring-opened polymer having excellent ductility. The hydrogenated ring-opened polymer includes 90 mass % or more of norbornene-derived structural units. The proportion of meso diads of cis-structural units (I) of formula (I), shown below, included among the norbornene-derived structural units is not less than 0% and not more than 30% or is not less than 70% and not more than 100%. Trans-structural units (II) of formula (II), shown below, constitute a proportion of not less than 0.5% and not more than 20% among the total of the cis-structural units (I) of formula (I) and the trans-structural units (II) of formula (II).

Hydrogenated ring-opened polymer, resin composition, and shaped product

Provided is a hydrogenated product of a cyclic polymer including a cyclic chain that includes a repeating unit of a ring-opened cycloolefin.

Hydrogenated cyclic polymer, method of producing same, and resin composition

Disclosed is a hydrogenated norbornene ring-opened polymer, wherein a proportion of a norbornene-derived repeating unit is 90% by mass or more, a meso diad fraction of the norbornene-derived repeating unit is 80% or more, and in an X-ray diffraction pattern measured at 25&#xb0; C. using a CuK&#x3b1; radiation source, an X-ray diffraction peak is observed which has a peak top positioned in a diffraction angle (2&#x3b8;) range of 17&#xb0; or more and 18&#xb0; or less.

Hydrogenated norbornene ring-opened polymer, and method of producing the same

A polyether polymer composition containing 200 parts by weight or more of a metal-containing powder per a total of 100 parts by weight of a cationic group-containing low molecular weight polyether polymer composed of 10 to 200 oxirane monomer units, wherein at least a part of the oxirane monomer units is an oxirane monomer unit having a cationic group, and a high molecular weight polyether polymer composed of more than 200 oxirane monomer units is provided.

Polyether polymer composition, method for producing same, and sheet in which same is used

An anti-static agent containing a polyether compound having a cationic group is provided. According to the present invention, an anti-static agent can be provided which has excellent compatibility with a resin material and a rubber material as well as excellent anti-static properties.

Anti-static agent, and composition for molding and crosslinkable composition in which same is used

A polyether polymer composition containing 200 parts by weight or more of a metal-containing powder per 100 parts by weight of a polyether polymer having an oxirane monomer unit is provided. The present invention can provide a polyether polymer composition that is capable of appropriately showing various properties of the metal-containing powder such as high heat conductivity and high electrical conductivity and that also has excellent long-term stability.

Polyether polymer composition and sheet

A polyether polymer composition containing 50 parts by weight or more of a filler per 100 parts by weight of a polyether polymer composed of 10 to 200 oxirane monomer units is provided. The present invention can provide a polyether polymer composition that is capable of appropriately showing various properties of the filler such as high heat conductivity and high electrical conductivity and that also has excellent long-term stability.

Polyether polymer composition

The present invention is a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a melting point of 280&#xb0; C. or higher and a syndiotacticity of higher than 90%, and a syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, and a formed article, and a method for producing the formed article. One aspect of the invention provides a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a high melting point of 280&#xb0; C. or higher, and a syndiotacticity of higher than 90%.

Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer

The present invention provides a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer having a melting point of lower than 280&#xb0; C., an initial melting temperature of 260&#xb0; C. or higher and a syndiotacticity of higher than 90%, and a syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the syndiotactic dicyclopentadiene ring-opening polymer, and a method for producing the hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer. The hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer has a sufficiently high initial melting temperature, excellent heat resistance and advantageous industrial producibility. The syndiotactic dicyclopentadiene ring-opening polymer is excellent in solution stability after polymerization reaction and can be converted into the hydrogenated product by hydrogenation reaction.

Hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer, syndiotactic dicyclopentadiene ring-opening polymer, and production method for these

A hydrogenated norbornene-based ring-opening polymer having a syndiotacticity ((racemo diads)/(meso diads+racemo diads)&#xd7;100) of more than 90% is disclosed. A method for producing the same is also disclosed. It is thus possible to provide a hydrogenated highly syndiotactic norbornene-based ring-opening polymer that is formed of a single material, and exhibits high solvent resistance, and a method for producing the same.

Hydrogenated syndiotactic norbornene-based ring-opening polymer

The present invention is a method for producing a resin-formed article, the method comprising melt-forming a forming material including a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer with an initial melting temperature of 260&#xb0; C. or higher and a syndiotacticity higher than 90%. Thus provided is a method for producing a resin-formed article sufficiently reflecting the properties of the hydrogenated crystalline dicyclopentadiene ring-opening polymer.

Resin molded body manufacturing method, resin film manufacturing method, and injection molded article manufacturing method

The present invention is a resin formed article comprising a hydrogenated syndiotactic crystalline dicyclopentadiene ring-opening polymer with an initial melting temperature of 260&#xb0; C. or higher, a melting point of lower than 280&#xb0; C. and a syndiotacticity of higher than 90%, and a resin film, and an injection formed article. One aspect of the invention provides a resin formed article, a resin film and an injection formed article which sufficiently reflect the properties of the hydrogenated crystalline dicyclopentadiene ring-opening polymer.

Resin molded body, resin film, and injection molded article

The present invention is a polyether-based polymer composition includes: a polyether-based polymer including an oxirane monomer unit and having one cationic group substantially only at one terminal of a polymer chain, and a nanocarbon material. The polyether-based polymer composition of the present invention can be suitably used, for example, as a bucky gel or as a master batch for preparing a nanocarbon material aqueous dispersion in which a nanocarbon material is favorably dispersed.

Polyether-based polymer composition

The present invention is: a hydrogenated tetracyclododecene-based ring-opening polymer comprising a repeating unit (A) derived from tetracyclododecene in a ratio of 40 wt % or more based on a total amount of repeating units, a ratio of meso diads in the repeating unit (A) being 65% or more; and a method for producing the same. By means of the present invention, provided are: a crystalline hydrogenated tetracyclododecene-based ring-opening polymer having a high melting point and a high glass transition temperature, and exhibiting excellent heat resistance and excellent processability even after forming due to melt forming; and a method for producing the same.

Hydrogenated tetracyclododecene-based ring-opening polymer and method for producing same

Provided is a material which exhibits excellent ion conductivity and excellent processability and which can provide an electrolyte that exhibits excellent water-resistant shape retention properties after processing. A polyether copolymer having polyether segment blocks having cationic groups and hydrophobic polyether segment blocks. The polyether segments having cationic groups preferably have oxirane monomer units represented by general formula (1). The polyether copolymer may have oxirane monomer units having crosslinkable groups. An electrolyte is obtained by crosslinking a composition containing the polyether copolymer and a crosslinking agent. (In general formula (1), A+ denotes a group having an onium cation structure having a cationic nitrogen atom, and X&#x2212; denotes an anion). 

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Tokyo, Japan

Shigetaka Hayano