公开(公告)号：US4379861A

公开(公告)日：1983-04-12

申请号：US325539

申请日：1981-11-27

申请人： Peter Haas ,  Hans-Albrecht Freitag

发明人： Peter Haas ,  Hans-Albrecht Freitag

IPC分类号： C08G18/00 ,  C07D295/12 ,  C08G18/18 ,  C08G18/20 ,  C08J9/02 ,  C08G18/14

CPC分类号： C08G18/2081 ,  C08G18/2018

摘要： The invention relates to a process for the preparation of foamed or unfoamed polyurethanes by the reaction of compounds with molecular weights of 400 to 10,000 having at least two isocyanate-reactive hydrogen atoms with polyisocyanates in the presence of catalysts containing tertiary amino groups and optionally in the presence of chain-lengthening agents of molecular weight 32 to 400, foam stabilizers, water and/or organic blowing agents and optionally other auxiliary agents and additives, characterized in that the catalysts are morpholine derivatives of the general formula ##STR1## wherein X is an integer from 3 to 6 andR.sup.1 and R.sup.2 are identical or different and(a) represent a C.sub.1 -C.sub.6 -alkyl or C.sub.6 -C.sub.10 -cycloalkyl group or(b) form a heterocyclic ring containing 4-7 C-atoms, which heterocyclic ring may contain hetero groups in addition to the N-atom and wherein the additional hetero groups may be substituted by a C.sub.1 -C.sub.3 alkyl, or(c) together denote a group of the formula ##STR2## in which n and m are identical or different numbers from 2 to 4, preferably 2, or(d) represent ##STR3##

摘要翻译： 本发明涉及一种制备泡沫或未发泡的聚氨酯的方法，其通过在含有叔氨基的催化剂存在下，通过使分子量为400至10,000的化合物与多异氰酸酯反应而具有至少两个异氰酸酯反应性氢原子与任选在 存在分子量为32至400的链延长剂，泡沫稳定剂，水和/或有机发泡剂和任选的其它助剂和添加剂，其特征在于催化剂是通式为“IMAGE”的吗啉衍生物，其中X为 3至6的整数，R 1和R 2相同或不同，（a）表示C 1 -C 6烷基或C 6 -C 10 - 环烷基或（b）形成含有4-7个C原子的杂环，该杂环 可以含有除了N-原子以外的杂基，其中另外的杂基可以被C 1 -C 3烷基取代，或者（c）一起表示式“IMAGE”的基团，其中n 和m是相同或不同的数2至4，优选2，或（d）表示