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发明公开
CN106661176A 聚氨基甲酸酯树脂的水分散体及使用其的塑料膜用涂布剂 无效 - 撤回

聚氨基甲酸酯树脂的水分散体及使用其的塑料膜用涂布剂
摘要：
本发明提供一种对广泛种类的膜的密接性优异、且可获得透明性及均匀性高的涂膜的聚氨基甲酸酯树脂的水分散体。本发明的聚氨基甲酸酯树脂的水分散体中，聚氨基甲酸酯树脂是使在末端具有异氰酸酯基的氨基甲酸酯预聚物在中和剂(E)的存在下利用水进行交联而成，体积平均粒径为0.01μm～0.2μm，氨基甲酸酯预聚物是以35质量％以上且小于70质量％的将芳香族二羧酸及脂肪族二羧酸与分支二醇作为构成成分的聚酯二醇(A)、羟基数为3个以上的多元醇(B)、有机二异氰酸酯(C)、以及具有游离羧基的链伸长剂(D)作为构成成分。
摘要（英）：

Provided is an aqueous dispersion of polyurethane resin having excellent adhesiveness with a wide variety of films that also obtains a coating film having high transparency and uniformity. An aqueous dispersion of polyurethane resin having a volume average particle size of 0.01-0.2 mu m obtained by crosslinking a urethane prepolymer having isocyanate groups at the ends, having as structural components from 35 to less than 70 mass% of a polyester glycol (A), having as structural components an aromatic dicarboxylic acid, aliphatic dicarboxylic acid, and branched glycol, a polyol (B) having three or more hydroxyl groups, an organic diisocyanate (C), and a chain extender (D) having free carboxyl groups, by water in the presence of a neutralizer (E).

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