Kuraray Co., Ltd.

Takashi Hori

Yasutaka Inubushi

Tomoaki Tsuji

Shuichi Sunaga

Hiroyuki Ohgi

Jin Tokuyasu

Chikako Ikeda

Hideharu Iwasaki

Atsuhiro Nakahara

Yasuo Tokitoh

Taketoshi Okuno

Hiroyuki Ogi

Toyoaki Kurihara

Kazunori Watanabe

Tomoyasu Tsuda

Masanori Miura

Takuya Inagaki

The present invention provides a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from butadiene and a hydride thereof. Furthermore, the present invention provides a method of producing a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from butadiene.

Copolymer of 1, 3, 7-octatriene and butadiene, hydride thereof, and method for producing said copolymer

The present invention provides a 1,3,7-octatriene polymer having a narrow molecular weight distribution and a hydride thereof. Specifically, the 1,3,7-octatriene polymer is a polymer containing a structural unit derived from 1,3,7-octatriene, wherein the polymer has not only a molecular weight distribution (Mw/Mn) of 2.05 or less but also a weight average molecular weight (Mw) of 1,000 to 1,000,000.

1,3, 7-octatriene polymer, hydride thereof, and method for producing said polymer

The present invention provides a copolymer of 1,3,7-octatriene and isoprene having a narrow molecular weight distribution (Mw/Mn) and a hydride thereof. Furthermore, in a production method of a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from isoprene, high raw material conversions are achieved for a short polymerization time. Specifically, the copolymer is a copolymer containing a structural unit derived from 1,3,7-octatriene and a structural unit derived from isoprene and is a copolymer having a molecular weight distribution (Mw/Mn) of less than 1.44, or the like.

Copolymer of 1,3,7-octatriene and isoprene, hydride thereof, and method for producing said copolymer

The problem of providing a metal complex having excellent gas adsorption performance, gas storage performance, and gas separation performance is solved by a metal complex comprising a dicarboxylic acid compound (I) including 20 to 99 mole % of a dicarboxylic acid compound (I-1) selected from terephthalic acid derivatives having an electron-donating group in the 2nd position such as 2-methoxyterephthalic acid, 2-methylterephthalic acid, and terephthalic acid, and 80 to 1 mole % of a dicarboxylic acid compound (I-2) selected from terephthalic acid derivatives having an electron-withdrawing group in the 2nd position such as 2-nitroterephthalic acid, 2-fluoroterephthalic acid, 2-chloroterephthalic acid, 2-bromoterephthalic acid, and 2-iodoterephthalic acid; at least one kind of metal ion selected from metal ions belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion.

Metal complex and adsorbent material, storage material, and separating material comprising same

The metal complex comprises a multivalent carboxylic acid compound, at least one metal ion selected from ions of metals belonging to Groups 2 to 13 of the periodic table, an organic ligand capable of multidentate binding to the metal ion, and a Cor Cmonocarboxylic acid compound. The metal complex has excellent gas adsorption, storage, and separation performance as well as excellent durability. The metal complex is stably present under high temperature and high humidity, and can maintain high adsorption performance.

Metal complex, and adsorbent material, storage material and separation material comprising metal complex

An object of the present invention is to provide an adsorbent material having excellent gas storage performance and gas separation performance. This object can be achieved by an adsorbent material comprising a composition comprising a metal complex (A) and an elastomer (B), the metal complex (A) containing an anionic ligand and at least one metal ion selected from ions of metals belonging to Groups 1 to 13 of the periodic table, the metal complex (A) being capable of undergoing a volume change upon adsorption, and the mass ratio of the metal complex (A) and the elastomer (B) being within the range of 1:99 to 99:1.

Adsorbent

Disclosed is a metal complex that can be used as a gas absorption material with superior gas absorbing properties, a gas storage material with a high storage capacity, and a gas separation material with superior gas separation performance and high adsorption capacity. Disclosed is a metal complex, and a manufacturing method therefor, which consists of: a polycyclic aromatic dihydroxy monocarboxylic acid compound, in the structural formula of which hydroxyl groups are at the farthest locations from each other, which has carboxyl groups at the locations adjacent to the hydroxyl groups, and which has 10 or more circularly conjugated &#x3c0; electrons, such as 3,7-dihydorxy-2-naphtoic acid or 4,4'-dihydroxy-3-biphenylcaroxylic acid; at least one metal selected from chromium, molybdenum, tungsten, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, copper, zinc, and cadmium; and an organic ligand, such as 4,4&#x2032;-bipyridyl, capable of bidentate bonding with said metal.

Metal complex and manufacturing method therefor

The present invention provides hydrogenated &#x3b2;-pinene-based polymers with excellent heat resistance and light resistance, low absorptivity and high transparency, as well as molded articles thereof. The polymers of the present invention contain 50% by mass or more of &#x3b2;-pinene units and are hydrogenated &#x3b2;-pinene-based polymers where the ratio of the proton integral value at 6 to 8 ppm to the total proton integral value in aH-NMR spectrum is 2.3&#xd7;10or less or the p-phenylene group content is 0.0055% by mass or less, and the ratio of the proton integral value at 4.5 to 6 ppm to the total proton integral value is 2.8&#xd7;10or less or the cyclohexene-1,4-diyl group content is 0.29% by mass or less. The molded articles of the present invention contain the above hydrogenated &#x3b2;-pinene-based polymers.

Hydrogenated &#x3b2;-pinene-based polymers and molded articles comprising the same

A method for producing ethers comprises the following steps: initiating telomerization process of a conjugated diene compound with an hydroxyl compound represented by the following formula (I):ROH&#x2003;&#x2003;(I)in the presence of a palladium compound, a tertiary isocyanide represented by the following formula (II):RNC&#x2003;&#x2003;(II),and a base; and adding halfway through the telomerization process a tertiary phosphine represented by the following formula (III):PRRR&#x2003;&#x2003;(III)(the respective symbols are defined in the description).

Method for producing ethers

A process for producing 7-octen-1-al by isomerization of 2,7.octadien-1-ol by feeding 2,7-octadien-1-ol and hydrogen to a reaction zone in the presence of a copper catalyst while controlling the molar ratio of 2,7-octadien-1-ol to hydrogen within a range of 99/1 to 75/25, and effecting isomerization in the gaseous phase. This process ensures a high yield, a high selectivity and stable operation over a long period of time.

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Kurashiki, Japan

Takashi Hori