Idemitsu Kosan Company, Limited

Shinji Chino

Shigeru Matsuo

Shigeru Murakami

Naoto Yakoh

Hiroyuki Higuchi

Mikiya Hayashi

Naoto Yako

New and useful aromatic polyethers, which are high in glass transition temperatures, possess excellent mechanical properties, thermal resistance, solvent resistance, and generate fluorescence, are described. Also described are fluorescent resin compositions containing the aromatic polyethers. Processes for preparing the aromatic polyethers and the fluorescent resin compositions are also described.

Aromatic polyethers, fluorescent resin compositions containing same, and

A polyether copolymer comprising the repeating units represented by the following general formula (I) ##STR1## and the repeating units represented by the following formula (II) ##STR2## the molar ratio of (I)/{(I)+(II)} being from 0.1 to 0.8 and the polyether copolymer having a melt viscosity of at least 500 poise as measured at 400.degree. C. is produced by allowing a dihalogenobenzonitrile, 1,4-bis(4'-halobenzoyl)benzene, and 4,4'-biphenol to react with each other in an aprotic polar solvent in the presence of an alkali metal compound. The polyether copolymer exhibits excellent heat-resistance, solvent resistance, and mechanical strength, and is suitable as a material for resin compositions, heat-resistant laminates, fiber, and film.

Polyether copolymers, resin compositions containing them, and molded

A polyetheric copolymer, a polyetheric block copolymer, and compositions of these copolymers containing:

Growing community of inventors

Chiba, Japan

Shinji Chino