Tosoh Corporation

Denki Kagaku Kogyo Kabushiki Kaisha

Shinji Sato

Toru Seita

Kenichi Sekimoto

Yoshihisa Moriya

Yutaka Mitsuda

Hideyuki Tanaka

Katsuya Shibata

Masaaki Todoko

Takashi Taniguchi

Yutaka Ogura

Katuya Shibata

An eluent for ion chromatography for analyzing divalent cations, which comprises an acid and at least one amino acid selected from the group consisting of histidine, lysine and arginine.

Eluent for ion chromatography for measuring alkaline earth metal ions, and method for analyzing alkaline earth metal ions, employing it

A pellicle having a reflection-preventing function comprised of a transparent polyvinyl acetal film and a reflection-preventing film formed on at least one surface of the polyvinyl acetal film. The reflection-preventing film is made of a copolymer of a perfluoroalkyl acrylate or methacrylate with a hydroxyalkyl acrylate or methacrylate having (i) a hydroxyalkyl group having 2-3 OH groups on the terminal or side chain and 3-5 carbon atoms, (ii) a hydroxyalkyl group having an OH group on the terminal or side chain and 2-4 carbon atoms, or (iii) a fluorine-containing hydroxyalkyl group having an OH group on the terminal or side chain and 4-12 carbon atoms.

Pellicle having reflection-preventing function

A positive resist composition comprising an aromatic group-containing alkali-soluble resin and a compound having an ammonium salt as skeleton, as the main components.

Solubilization-inhibitor and positive resist composition

A process for producing a conjugated diene polymer, which comprises polymerizing (a) a conjugated diene, (b) two or more conjugated dienes or (c) at least one conjugated diene with a monovinyl aromatic compound, at a temperature of from about 30 to about 100.degree. C in an inert hydrocarbon solvent in the presence of a catalyst composition comprising (i) an alkenyl sodium containing 3 to 8 carbon atoms in the alkenyl moiety and (ii) a sodium alkoxide of a dimethylalkyl carbinol containing 1 to 5 carbon atoms in the alkyl moiety.

Process for producing conjugated diene polymers

Growing community of inventors

Machida, Japan

Shinji Sato