Ube Industries, Inc.

The University of Tokyo

Tetsurou Tsuji

Kikuo Ataka

Yasushi Yamamoto

Hikaru Yatabe

Yasutaka Yoshida

Yoshihiro Yamauchi

Kenji Fukunaga

Hisashi Ohsaki

Akihiro Matsubayashi

3,4-Dicarboalkoxybiphenyl-3',4&#x2032;-dicarboxylic acid represented by the general formula (1): in which Rand Reach represents an alkyl group having 1 to 4 carbon atoms, and n represents the number of waters of hydration that is 0 or 1, and the corresponding anhydride.

3,4-dialkylbiphenyldicarboxylic acid compound, 3,4-dicarboalkoxybiphenyl-3',4&#x2032;-dicarboxylic acid and corresponding acid anhydrides, and processes for producing these compounds

The present invention relates to the 3,4-Dicarboalkoxybiphenyl-3',4&#x2032;-dicarboxylic acid (including the corresponding acid anhydride) represented by the general formula (1): wherein Rand Reach represents an alkyl group having 1 to 4 carbon atoms, and n represents the number of waters of hydration that is 0 or 1.

3,4-dialkylbiphenyldicarboxylic acid compound, 3,4-dicarboalkoxybiphenyl-3', 4'-dicarboxylic acid and corresponding acid anhydrides, and processes for producing these compounds

A terminally-modified polybranched polyimide which can be efficiently complexed with an inorganic material is obtained by reacting a component (a): tetracarboxylic dianhydride; a component (b): as an amine component, a mixture of a triamine and a diamine (which may be composed of a triamine only); and a component (c): as a terminal component, a compound selected from general formulae (1-1) to (1-4).HN&#x2014;X&#x2014;R&#x2003;&#x2003;(1-1)  

Terminally modified polybranched polyimide, metal-plated terminally modified polybranched polyimide, and method for producing the same

An aligned metal-particle film, in which metal particles are aligned in a polymer as a layer with a certain interval in parallel with a substrate is disclosed. The aligned metal-particle film is manufactured by forming a polymer film containing a metal component on a reflecting substrate; and irradiating the polymer film with light at a particular wavelength, whereby metal particles are aligned in parallel with the substrate in the polymer.

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Ube, Japan

Tetsurou Tsuji