| 摘要 |
There is disclosed a novel organic solvent type coating composition capable of making the solid content concentration at the time of coating to higher than 70% by weight, without lowering the properties, which urethane type coating materials have, such as acid resistance, scratch resistance, finishing appearance etc. The composition comprises (A) a vinyl type polymer having both hydroxyl groups and alkoxysilyl groups in the molecule and having a number-average molecular weight in a range of 2,000 to 10,000; (B) a polyol compound having a number-average molecular weight of less than 1,000 and having a hydroxyl value in a range of 120 to 1,000 mgKOH/g; (C) a polyisocyanate compound having a number-average molecular weight of less than 2,000; and (D) a silanol group forming catalyst.
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