申请人:Henkel AG & Co. KGaA
公开号:EP3409707A1
公开(公告)日:2018-12-05
The present application is directed to a method for preparing an amino and hydroxyl-functional polyester, said method comprising: i) preparing an unsaturated polyester by the polycondensation reaction, optionally in the presence of a catalyst, of reactants comprising or consisting of at least one diol and at least one α,β-ethylenically unsaturated dicarboxylic acid or anhydride thereof, wherein said polycondensation reaction is characterized by a stoichiometric excess of hydroxyl groups to carboxyl groups; and, ii) reacting, by conjugate addition, said unsaturated polyester with at least one polyamine, said polyamine having at least one primary amine group and at least one secondary amine group.
本申请涉及一种制备氨基和羟基官能团聚酯的方法,所述方法包括i) 通过缩聚反应制备不饱和聚酯,反应物包括或由至少一种二元醇和至少一种 α,β-乙烯基不饱和二羧酸或其酸酐组成,其中所述缩聚反应的特征是羟基对羧基的过量成比例;以及,ii) 通过共轭加成,使所述不饱和聚酯与至少一种多胺反应,所述多胺具有至少一个伯胺基团和至少一个仲胺基团。