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发明授权
CN105051112B 氨基甲酸酯树脂组合物、涂布剂及物品 有权

氨基甲酸酯树脂组合物、涂布剂及物品
摘要：
本发明提供一种氨基甲酸酯树脂组合物，其特征在于，含有氨基甲酸酯树脂(A)、及水性介质(B)，所述氨基甲酸酯树脂(A)是使多元醇(a1)与多异氰酸酯(a2)反应而得到的具有聚合性不饱和基团的氨基甲酸酯树脂，所述多元醇(a1)含有由下述通式(1)所表示的具有2个以上聚合性不饱和基团的亚烷基二醇(a1‑1)或由下述通式(2)所表示的具有2个以上聚合性不饱和基团的氧亚烷基二醇(a1‑2)。该氨基甲酸酯树脂组合物能够形成兼顾拉伸度及弯曲性与高硬度的涂膜。HO‑R1‑OH (1)(通式(1)中的R1表示在具有碳原子数1个～9个的直链亚烷基的侧链上具有2个以上包含聚合性不饱和基团的原子团的结构)HO‑R1O‑R2‑OR3‑OH (2)(通式(2)中的R1及R3表示在亚乙基的侧链上具有总计2个以上包含聚合性不饱和基团的原子团的结构，R2表示具有碳原子数1个～5个的亚烷基)。
摘要（英）：

The present invention provides a urethane resin composition containing a urethane resin (A) having polymerizable unsaturated groups and an aqueous medium (B). The urethane resin (A) is obtained by reacting a polyol (a1) with a polyisocyanate (a2). The polyol (a1) contains an alkylenediol (a1-1) having two or more polymerizable unsaturated groups or an oxyalkylenediol (a1-2) having two or more polymerizable unsaturated groups. The alkylenediol (a1-1) is represented by general formula (1): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒHO-R 1 -OH€ƒ€ƒ€ƒ€ƒ€ƒ(1) (where R 1 is a linear alkylene group of one to nine carbon atoms having two or more atomic groups containing a polymerizable unsaturated group in side chains thereof). The oxyalkylenediol (a1-2) is represented by general formula (2) : €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒHO-R 1 O-R 2 -OR 3 -OH€ƒ€ƒ€ƒ€ƒ€ƒ(2) (where R 1 and R 3 are ethylene groups having a total of two or more atomic groups containing a polymerizable unsaturated group in side chains thereof, and R 2 is an alkylene group of one to five carbon atoms). This urethane resin composition can form a coating with good elongation and flexibility and high hardness.

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