Method for producing polyurethane, epoxy carboxylate composition, polyurethane, and polyurethane resin composition
申请人:SHOWA DENKO K. K.
公开号:US11203659B2
公开(公告)日:2021-12-21
A method for producing a polyurethane according to the present invention including: a first step wherein an epoxy carboxylate compound (X) is obtained by reacting (a) an epoxy compound that includes a halogen atom content of 10 ppm by mass or less, while having only two epoxy groups and no hydroxyl group in each molecule, (b) an unsaturated aliphatic monocarboxylic acid that has an ethylenic unsaturated group in each molecule, while having no aromatic ring, and (c) an aromatic monocarboxylic acid that has no ethylenic unsaturated group in each molecule; and a second step wherein the epoxy carboxylate compound (X) obtained in the first step is reacted with a diisocyanate compound (Y).
一种根据本发明生产聚氨酯的方法,包括第一步 环氧羧酸酯化合物(X)通过以下反应获得:(a)环氧化合物,其卤原子含量为 10 ppm (质量分数)或更低,同时每个分子中只有两个环氧基团而没有羟基;(b)不饱和脂肪族一 羧酸,其每个分子中含有一个乙烯基不饱和基团,同时没有芳香环;以及(c)芳香族一 羧酸,其每个分子中没有乙烯基不饱和基团;第二步:第一步中得到的环氧羧酸化合物(X)与二异氰酸酯化合物(Y)反应。