Shimadzu Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Denki Kabushiki Kaihsa

Tatsushi Kawamoto

Akira Yamada

Fusaoki Uchikawa

Shigeru Matsuno

Shoji Miyashita

Naoki Yoshioka

Mitsushi Kawao

Takashi Kawabe

Hitomi Ohara

Makoto Ogaito

Yasumasa Horibe

Hisashi Okuyama

Yasuhiro Fujii

Seiji Sawa

In a liquid substance supply device, a three port two valve directional control valve is provided in a transfer line, and a substance container and the transfer line are connected together by a four port three valve directional control valve in such a way that the four port three valve directional control valve and the substance container can be removed from the transfer line as a unit. Furthermore, in a vaporizer, an orifice member is provided to surround the end portion of an internal conduit in which flows a mixture substance consisting of a gas and a liquid substance mixed therewith, and gas for atomization is spouted into a vaporization chamber through a gap defined between the internal conduit and the orifice member. Yet further, the temperature of a vaporization surface in the vaporization chamber can be controlled independently in correspondence with the nature of the liquid substance.

Liquid substance supply device for vaporizing system, vaporizer, vaporization performance appraisal method

Liquid substance supply device for vaporizing system, vaporizer, and vaporization performance appraisal method

Method for purifying lactide and lactide for food additives

A lactic acid based by-product formed in a process of producing a lactic acid based composition is subjected to racemization in the presence or absence of a catalyst to thereby obtain a lactic acid component having substantially optical inactivity. Then, lactide or polylactic acid having optical inactivity can be obtained from the lactic acid component having the optical inactivity. The obtained lactide or polylactic acid is mixed with lactide or polylactic acid having an optical purity in a range of 90 to 100% e.e. at a predetermined ratio to thereby obtain lactide or polylactic acid having a desired optical purity.

Methods of reproducing lactic acid components by using lactic acid based

A method for producing a polylactic acid of the present invention includes the steps of (a) polymerizing a lactide used as a main starting material in a molten state to give a polylactic acid; and (b) further polymerizing the polylactic acid obtained in step (a) in a solid phase by heating at a temperature lower than a melting point of a final polymer product.

Method for producing polylactic acid

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Hadano, Japan

Tatsushi Kawamoto