Nippon Paint Compnay, Ltd.

Daicel Chemical Industries, Ltd.

Diacel Chemical Industries, Ltd.

Takeharu Tabuchi

Shinji Nakano

Takaaki Fujiwa

Shin-ya Yamada

Takao Morimoto

Hideki Matsui

Disclosed are a carbonate group-modified epoxy resin in which carbonate groups are introduced into an epoxy resin having secondary hydroxyl groups at terminals or lactone-modified epoxy resin having primary hydroxyl groups at terminals by the ring-opening reaction of a cyclic alkylene carbonate, a process for the preparation thereof, and a thermosetting resin composition containing the carbonate group-modified epoxy resin.

Carbonate group-modified epoxy resin, a process for the preparation

A hydroxy-terminated linear carbonate is produced by reacting a cyclic alkylene carbonate such as neopentyl glycol carbonate with a substance having at least one alcoholic hydroxyl group in the presence of a catalyst. Mono- or polyhydric alphatic alcohols, polycaprolactone polyols, hydroxyl group-containing acrylic monomers and polymers, and polyester polyols are modified by the reaction with the cyclic alkylene carbonate to have an enhanced reactivity and resistance to hydrolysis.

Modified acrylic polyyol carbonate polymer

A novel acrylic monomer is produced by addition reacting a hydroxyalkyl (meth)acrylate or its lactone adduct with a cyclic alkylene carbonate, and then acylating the terminal hydroxyl group of the reaction product with a reactive derivative of a monobasic alkanoic acid or a dicarboxylic acid anhydride.

Acrylic monomer

Process for the production of modified acrylic monomers

Carbonate modified polyester polyol

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Otake, Japan

Takeharu Tabuchi