Mitsubishi Chemical Corporation

Takiron Co., Ltd.

Masahiko Taniguchi

Yasuo Shikinami

Koji Yamada

Nobuaki Sato

Takuya Nakajima

Daichi Nishimura

Tomonori Yoshida

Hiroto Misawa

Kaoru Tsuta

Hidekazu Boutani

Noriaki Kurokawa

An ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol % and includes a carboxylic acid group and a lactone ring group present at terminals thereof, wherein the molar concentration (Y/Z) of a lactone ring molar content (Y) to a sum (Z) of a carboxylic acid molar content (X) and the lactone ring molar content (Y) is not less than 58 mol %. The ethylene-vinyl alcohol copolymer is excellent in high-temperature thermal stability substantially without thermal decomposition, and is free from odor emanation and coloration even if being processed at a higher temperature.

Ethylene-vinyl alcohol copolymer, method of producing ethylene-vinyl alcohol copolymer, resin composition, and multilayer structure

An ethylene-vinyl alcohol copolymer composition is provided, which contains an ethylene-vinyl alcohol copolymer and an iron compound, wherein the ethylene-vinyl alcohol copolymer has an ethylene content of 20 to 60 mol %, wherein the iron compound is present in a proportion of 0.01 to 100 ppm on a metal basis based on the weight of the ethylene-vinyl alcohol copolymer composition.

Ethylene-vinyl alcohol copolymer composition pellets, and multilayer structure

A one-component system polyurethane gel and a coupler for ultrasonic diagnostic probes comprising the same are disclosed. The gel is obtained by reacting a polyol having a room temperature liquid alkylene oxide chain and/or a polyurethane polyol prepolymer having a room temperature liquid alkylene oxide chain with a polyurethane polyisocyanate prepolymer having a room temperature liquid alkylene oxide chain. The gel causes no bleeding or evaporation of a dispersion medium and is therefore excellent in safety to the human body and preservation stability.

Liquid segment polyurethane gel and couplers for ultrasonic diagnostic

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Osaka, Japan

Masahiko Taniguchi