Otsuka Chemical Co.

Tokushima-shi, Japan

Otsuka Chemical Co.

Tokushima-shi, Japan

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Patent
Otsuka Chemical Co. | Date: 2017-02-01

The object of the present invention is to provide a hemostatic pharmaceutical composition that has higher usability compared to a hemostatic agent employing conventional biogels and may form a transparent and homogeneous hydrogel in a broad pH. The present invention provides a hemostatic pharmaceutical composition comprising a sugar chain-polypeptide complex characterized in that said polypeptide in said sugar chain-polypeptide complex is a polypeptide comprising an amino acid sequence in which polar and nonpolar amino acid residues are alternately arranged, and one or more sugar chains are bound to said polypeptide.


Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R^(1), R^(2), R^(5), and R^(6) each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but R^(1) and R^(2) do not both simultaneously represent a hydrogen atom and R^(5) and R^(6) do not both simultaneously represent a hydrogen atom, R^(3) and R^(4) each represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1.


Patent
Otsuka Chemical Co. | Date: 2017-03-29

Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit surface discoloration of a rubber article. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one amine compound represented by formula (I) shown below. In formula (I), R^(1) and R^(2) each represent, independently of one another, an alkyl group having a carbon number of 1-10, an aralkyl group, or a phenyl group, and A represents an alkylene group having a carbon number of 6-30 that may include an interposed phenylene group.


Patent
Otsuka Chemical Co. | Date: 2016-08-06

The object of the present invention is to provide a hemostatic pharmaceutical composition that has higher usability compared to a hemostatic agent employing conventional biogels and may form a transparent and homogeneous hydrogel in a broad pH. The present invention provides a hemostatic pharmaceutical composition comprising a sugar chain-polypeptide complex characterized in that said polypeptide in said sugar chain-polypeptide complex is a polypeptide comprising an amino acid sequence in which polar and nonpolar amino acid residues are alternately arranged, and one or more sugar chains are bound to said polypeptide.


Provided is a rubber composition that has better weather resistance than conventional rubber compositions and can inhibit rubber article surface discoloration. The rubber composition contains at least one rubber component selected from natural rubber and diene-based synthetic rubbers and, blended therewith, at least one bisphenyldiamine compound represented by formula (I). In formula (I), R^(1), R^(2), R^(5), and R^(6 )each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of 1-10, or a phenyl group, but R^(1 )and R^(2 )do not both simultaneously represent a hydrogen atom and R^(5 )and R^(6 )do not both simultaneously represent a hydrogen atom, R^(3 )and R^(4 )each represent, independently of one another, an alkyl group having a carbon number of 1-8 or an aralkyl group, A represents an alkylene group having a carbon number of 1-12, and l, m, and n each represent an integer of 0 or 1.


An object of the present invention is to provide a crystal of a cyclic phosphonic acid sodium salt (2ccPA) with high purity and excellent storage stability and a method for producing the crystal. The present invention provides a crystal of a cyclic phosphonic acid sodium salt (2ccPA) represented by formula (1):


Patent
Otsuka Chemical Company | Date: 2016-05-11

Provided is a nonaqueous electrolytic solution that provides an electric double layer capacitor having excellent durability. The nonaqueous electrolytic solution is prepared by dissolving a quaternary ammonium salt as an electrolyte in a nonaqueous solvent, and the nonaqueous electrolytic solution comprises a diethylpyrrolidinium salt and/or a 1-ethyl-1,3-dimethylpyrrolidinium salt.


Patent
Otsuka Chemical Company | Date: 2016-02-03

Provided are: a resin composition that can be given excellent formability and wear resistance when used as a friction material or the like; and a method for producing the resin compound. A titanate compound, which is a salt of at least one element selected from the group consisting of alkali metals and alkaline earth metals, is dispersively contained in a thermosetting resin prior to curing.


Patent
Otsuka Chemical Co. | Date: 2016-07-06

Provided are an exhaust gas purification filter in which, even in the coexistence of a catalyst capable of combusting particulate matter (PM) contained in exhaust gases and an SCR catalyst capable of reducing nitrogen oxides in exhaust gases to nitrogen, the catalytic function of the SCR catalyst is prevented from being impaired, and an exhaust gas purification apparatus equipped with the filter. An exhaust gas purification filter includes: an oxide containing one or more elements selected from alkali metals and one or more elements selected from Zr, Si, Al, and Ti; and a zeolite having silica / alumina ratio of 15 or more.


Patent
Kurita Water Industries Ltd. and Otsuka Chemical Co. | Date: 2016-04-08

A method for adsorbing radioactive material includes contacting a titanate represented by a chemical formula M_(2)Ti_(2)O_(5), where M is a univalent cation, with a radioactive material.

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