Nisso Petrochemical Industries Co., Ltd.

Nippon Soda Co., Ltd.

Nisso Petrochemical Industrie Co., Ltd.

Nisso Petrochemical Industry Company Limited

Takashi Tobita

Masahiro Shiozaki

Norio Sone

Kiyoshi Kogoma

Yu Ohashi

Hiroshi Yoshihara

Kunio Ishikawa

Ryoichi Tomizawa

Jiro Niizeki

Masuhiro Ikeshima

Motoki Kanazawa

Itsuo Nakabayashi

Satoshi Kitamura

Disclosed is a safe and efficient process for producing N-polyoxy-alkylated polyamides which comprises reacting polyamide in powder form under a temperature below the melting point of the polyamide with an alkylene oxide in the presence of an alkaline catalyst, and in a medium such as specificed cyclic ethers or specified alkyleneglycol dialkyl ethers.

Process for producing N-polyoxyalkylated polyamides

An improved process for producing a macrocyclic ester compound comprises decomposing and cyclizing linear ester compounds, from high to low condensate, to the macrocyclic ester, with the addition of glycol or oligoester compound of which the component is similar as those of said linear ester compounds. By this addition the reaction proceeds easily for a long time, and its efficiency is improved.

Process for producing macrocyclic ester compounds

An ether compound is advantageously produced by an ether exchange reaction of a different ether compound and a hydroxy group containing compound in the presence of a heteropoly acid or an acidic salt thereof as the catalyst. The catalyst is novel and is extremely effective to the present process and brings about less by-products compared to other processes or other catalysts.

Process for producing ether compounds

Oxyalkylene group of an alkylene oxide is inserted into a chain-type ether compound having at least one lower alkyl group by reacting the latter with the alkylene oxide in the presence of a catalyst prepared by mixing boron trifluoride and/or stannic chloride with an active-hydrogen compound exemplified by water or a lower aliphatic alcohol. The reaction results reduced formation of by-product dimer of the alkylene oxide even under an increased charging ratio of the alkylene oxide to the chain-type ether.

Process for the production of ethers

A process for the production of a mono- or poly-alkylene glycol diether which consists of reacting an ether having at least one lower alkyl group with alkylene oxide in the presence of a heteropoly acid or a heteropoly acid acidic salt. Heteropoly acids and their acidic salts whose ratio of the hetero and coordinate atom is 1:6 and 1:12 are preferably used.

Process for the production of diethers

A process for the production of an alkylene glycol ether ester of an organic carboxylic acid which comprises the step of reacting an alkylene oxide with an ester of organic carboxylic acid in accordance with the following reaction equation: ##STR1## wherein R' is a substituted or non-substituted hydrocarbon having 1 to 20 carbon atoms or a hydrogen atom;

Process for the production of alkylene glycol ether ester of organic

A process for the production of an alkylene glycol ether ester of organic acid which comprises reacting an alkylene oxide and an ester of organic carboxylic acid by using a catalytic amount of a basic catalyst selected from the group of halogenides consisting of zinc, aluminum, titanium, tin and iron, and organometallic compounds of zinc, aluminum, titanium, tin and iron.

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Ichihara, Japan

Takashi Tobita