Taiyo Ink Manufacturing Co., Ltd.

Hitoshi Inagaki

Nobuyuki Suzuki

Kazunobu Fukushima

Teruo Saito

Kyo Ichikawa

Disclosed are an organic acid salt of melamine represented by the following general formula (1) and a thermosetting and a photocurable and thermosetting coating compositions containing the salt mentioned above. ##STR1## wherein Z represents ##STR2## wherein R.sup.1 represents a hydrogen atom or an alkyl group, alkylene group, alicyclic hydrocarbon, or aromatic hydrocarbon severally having from 1 to 18 carbon atoms, or any of said groups or hydrocarbons whose hydrogen atom is substituted by carboxyl group, hydroxyl group, or a halogen atom, R.sup.2 represents a hydrogen atom or an alkyl group or alkylene group severally having from 1 to 9 carbon atoms, or any of said groups whose hydrogen atom is substituted by acryloyl group or methacryloyl group, R.sup.3 represents an alkyl group or alkylene group severally having from 1 to 9 carbon atoms, or any of said groups whose hydrogen atom is substituted by acryloyl group or methacryloyl group, and R.sup.4 represents an alkyl group or aromatic hydrocarbon severally having from 1 to 18 carbon atoms, or any of said group or hydrocarbon whose hydrogen atom is substituted by acryloyl group or methacryloyl group.

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Saitama-ken, Japan

Hitoshi Inagaki