PROCESS FOR PRODUCING HYDROXYALKYLTRIETHYLENEDIAMINE, AND CATALYST COMPOSITION FOR THE PRODUCTION OF POLYURETHANE RESIN USING IT
申请人:Tokumoto Katsumi
公开号:US20110077376A1
公开(公告)日:2011-03-31
To provide a process for producing a hydroxyalkyltriethylenediamine or hydroxytriethylenediamine simply and in a small number of steps without requiring multi-stage reaction steps; a novel catalyst composition whereby a polyurethane product can be obtained with good productivity and good moldability without bringing about odor problems or environmental problems; and a process for producing a polyurethane resin using the catalyst composition.
For example, a hydroxyalkyltriethylenediamine or hydroxytriethylenediamine is produced by subjecting a mono-substituted dihydroxyalkylpiperazine and/or a di-substituted hydroxyalkylpiperazine to an intramolecular dehydration condensation reaction in the presence of an acid catalyst.
Further, for example, a polyurethane resin is produced by using a catalyst composition which comprises a hydroxyalkyltriethylenediamine or hydroxytriethylenediamine (A), and an amine compound (B) having, in its molecule, one or more substituents selected from the group consisting of a hydroxy group, a primary amino group and a secondary amino group, or a tertiary amine compound (C) having a value of [blowing reaction rate constant/gelling reaction rate constant] of at least 0.5.
提供一种简单且步骤较少的工艺,用于生产羟基烷基三乙烯二胺或羟基三乙烯二胺,而无需进行多级反应步骤;一种新颖的催化剂组合物,可以在不产生异味或环境问题的情况下获得具有良好生产率和良好成型性的聚氨酯产品;以及使用催化剂组合物生产聚氨酯树脂的工艺。例如,通过在酸催化剂存在下,使单取代二羟基烷基哌嗪和/或双取代羟基烷基哌嗪经历分子内脱水缩合反应,可以生产羟基烷基三乙烯二胺或羟基三乙烯二胺。此外,例如,使用催化剂组合物生产聚氨酯树脂,该组合物包括羟基烷基三乙烯二胺或羟基三乙烯二胺(A),以及在其分子中具有一个或多个取代基的胺化合物(B),所述取代基选自羟基、一级胺基和二级胺基的群,或者具有至少0.5的[发泡反应速率常数/凝胶反应速率常数]值的三级胺化合物(C)。