Daiso Co., Ltd.

Osaka Soda Co., Ltd.

Meijo Nano Carbon Co., Ltd.

Yasushi Miki

Takashi Matsuo

Yoshiro Furukawa

Katsuhito Miura

Tomoyuki Yano

Masafumi Mikami

Yutaka Ishii

Keisuke Yaegashi

Takeshi Hashimoto

Naruhito Iwasa

Daigo Hirayama

Satoshi Murakami

Miwa Nakamura

Daisuke Fukumoto

Kei Takano

Hisato Kagawa

Jitsuo Oda

Provided is a method for highly efficiently producing highly pure single-walled carbon nanotubes. This method for producing carbon nanotubes by fluidized CVD includes: a step for heating a material (A) to 1200&#xb0; C. or higher, in which the total mass of AlOand SiOconstitutes at least 90% of the total mass of the material (A) and the mass ratio of AlO/SiOis in the range of 1.0-2.3; and a step for bringing a gas, which is present in the environment in which the material (A) is being heated to 1200&#xb0; C. or higher, into contact with a feed gas to generate carbon nanotubes.

Method for producing carbon nanotubes

Provided is a binder for battery electrodes which includes a polymer including: structural units (1) derived from a (meth)acrylate monomer (A) having a hydroxyl group; structural units (2) derived from a polyfunctional (meth)acrylate monomer (B); and structural units (3) derived from a reactive surfactant (C). This binder is used to prepare electrodes, and produce batteries such as lithium ion secondary batteries. Provided are: an aqueous binder which has a low environmental impact, exhibits excellent binding properties, and, notably, does not cause oxidation degradation under an electrode environment; and an electrode and a battery which use said binder.

Binder for battery electrodes, and electrode and battery using same

This binder for battery electrodes is characterized by containing a polymer including: (A) a structural unit represented by general formula (1) and derived from a monomer having a hydroxyl group (in the formula, R1 is a hydrogen or a C1-C4 straight-chain or branched alkyl group, R2 and R3 are each a hydrogen or a C1-C4 straight-chained or branched alkyl group, and n is an integer of 2-30); (B) a structural unit derived from an ethylenically unsaturated monomer having at least one functional group selected from the group consisting of a difunctional carboxylic acid group, a nitrile group and a ketone group; and (C) a structural unit derived from a polyfunctional (meth)acrylate monomer having at most five functional groups.

Binder for battery electrode, and electrode and battery using same

Disclosed is a battery electrode binder containing a polymer including (1) a constituent unit derived from a (meth)acrylate monomer (A) having a hydroxyl group, (2) a constituent unit derived from a vinyl ester monomer (B), and (3) a constituent unit derived from a polyfunctional (meth)acrylate monomer (C). Using the binder, an electrode is produced and adopted in a battery such as a lithium ion secondary battery. Obtained are: an aqueous binder that has a low environmental impact, has high adhesiveness, and in particular does not cause oxidative degradation in the electrode environment; and a battery and electrode using the binder.

Battery electrode binder and battery and electrode using same

The purpose of the present invention is to provide: an aqueous binder having high adhesiveness, that in particular does not exhibit oxidative degradation in an electrode environment, and having little environmental load; and an electrode and a battery that use same. Disclosed is a battery electrode binder containing: (A) a constituent unit derived from a monomer having a hydroxyl group; and (B) a constituent unit derived from a polyfunctional (meth)acrylate having no more than 5 functions. An electrode is prepared using this binder and is used in a battery such as a lithium-ion secondary battery.

Binder for battery electrode and electrode and battery using same

The present invention provides a method of kinetic optical resolution of carboxylic acid derivatives using specific optically active catalysts. A racemic or diastereomeric mixture of carboxylic acid derivatives of the formula (A) is reacted with a nucleophile in the presence of an optically active catalyst to form an optically active nucleophile derivative of the formula (B). The catalyst is an optically active compound represented by the formula (C) or (D) [wherein Ris a substituted or unsubstituted, saturated or unsaturated, straight-chain, branched or alicyclic aliphatic hydrocarbon group which can have a heteroatom, Ris ethyl or vinyl, and Ris hydrogen or methoxy respectively]. 

Optically active compounds, method for kinetic optical resolution of carboxylic acid derivatives and catalysts therefor

An 1-amido-3-(2-hydroxyphenoxy)-2-propanol derivative represented by the following formula (1), wherein cycle A may have further 1 to 4 substituents, and said substituent means a substituent selected from the group consisting of saturated or unsaturated C1-4 alkyl group, aralkyl group in which alkyl moiety has 1 to 4 carbon atoms, aryl group, halogen atom, halogenated C1-4 alkyl group, C2-5 alkanoyl group, mono or dialkylcarbamoyl group in which alkyl moiety has 1 to 4 carbon atoms, cyano group and nitro group, and the substituents at positions 3 and 6, or at positions 4 and 5 on the cycle A are different each other. Other ring may be fused at positions 3 and 4, or at positions 5 and 6 on the cycle A to form a condensed polycyclic hydrocarbon with the cycle A. Ris alkanoyl group or aroyl group, and Ris hydrogen atom, alkanoyl group or aroyl group, or Rand Rmay be combined together with the N atom to form a cyclic imido group, which is useful as an intermediate of medicines, etc.

1-amido-3-(2-hydroxyphenoxy)-2-propanol derivatives and a process for preparing 2-amidomethyl-1,4-benzodioxane derivatives

A process for producing a glycidyl ether and an optically active compound thereof with high yield and an optically high purity comprising reacting an alcohol with epihalohydrin in a base to thereby produce a glycidyl ether, the reaction performed in a two-layer system of a nonaqueous organic solvent and an aqueous solvent.

Process for producing glycidyl ether

A process for preparing a secondary alcohol which is characterized in adding a primary or a secondary amine in the reaction system in case that the secondary alcohol is prepared by hydrogenating in the presence of a noble metal, an epoxy derivative represented by the following formula, wherein Rand Rare the same or different, an organic group not containing aldehyde group or ketone group therein or hydrogen atom, provided that both Rand Rare not simultaneously hydrogen atom.

Process for preparing secondary alcohol

A process for preparing glycidylphtalimide or it optically active compound by reacting a phthalimide alkalimetal salt with an epihalohydrin or an optically active epihalohydrin in an alcohol solvent; or by reacting phthalimide with an epihalohydrin or an optically active epihalohydrin in the presence of an alkali metal carbonate, an alkali metal hydrogencarbonate or a quaternary ammonium salt to obtain a N-(3-halogeno-2-hydroxypropyl)phthalimide and then by cyclizing the product with an alkali metal alkoxide.

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Osaka, Japan

Yasushi Miki