申请人:Bayer Aktiengesellschaft
公开号:US04002601A1
公开(公告)日:1977-01-11
This invention relates to compounds corresponding to the following general formula: ##STR1## wherein M REPRESENTS AN INTEGER OF FROM 1 TO 6; N represents an integer of from 0 to 4; R.sub.1 represents an aliphatic hydrocarbon group containing from 2 to 6 carbon atoms; R.sub.2 and R.sub.3 which may be the same or different, each represents hydrogen, an aliphatic hydrocarbon group containing from 1 to 4 carbon atoms, a cycloaliphatic hydrocarbon group containing from 5 to 7 carbon atoms, or an aromatic hydrocarbon group containing from 6 to 10 carbon atoms, or when taken together with the ring carbon atom they may form a 5- or 6-membered cycloaliphatic hydrocarbon ring; R.sub.4 represents an aliphatic hydrocarbon group containing from 2 to 6 carbon atoms; and R.sub.5 represents a residue of the type which may be obtained by removing the isocyanate groups from an organic (n + m)-valent polyisocyanate. The invention also relates to a process for preparing urethanes which contain oxazolidine groups and optionally isocyanate groups, characterized in that N-hydroxyalkyl-oxazolidines are reacted with organic polyisocyanates at an OH/NCO ratio of from 1:1 to 1:6.
本发明涉及与以下一般式相对应的化合物:##STR1## 其中,M代表1至6的整数;N代表0至4的整数;R.sub.1代表含有2至6个碳原子的脂肪烃基;R.sub.2和R.sub.3可以相同也可以不同,分别代表氢、含有1至4个碳原子的脂肪烃基、含有5至7个碳原子的环脂肪烃基或含有6至10个碳原子的芳香烃基,或者与环上的碳原子结合形成5-或6-成员的环脂肪烃环;R.sub.4代表含有2至6个碳原子的脂肪烃基;R.sub.5代表从有机(n+m)-价多异氰酸酯中去除异氰酸基后得到的残基。本发明还涉及一种制备含有噁唑烷基和可选异氰酸酯基的脲的方法,其特征在于在OH/NCO比为1:1至1:6的条件下,将N-羟基烷基噁唑烷与有机多异氰酸酯反应。