申请人:Imperial Chemical Industries PLC
公开号:US04797429A1
公开(公告)日:1989-01-10
New Mannich bases of the formula ##STR1## wherein each of R.sup.1 and R.sup.2, independently, represents a hydroxyalkyl radical, and to oxyalkylation derivatives of the formula ##STR2## wherein each of a, b and c represents zero or a positive integer, their sum being in the range from 3 to 8, and wherein each A radical represents independently a propylene or ethylene radical. The compounds according to the invention are useful for the manufacture of rigid polyurethane foams.
新的Mannich碱的公式为##STR1## 其中R.sup.1和R.sup.2各自表示一个羟基烷基基团,以及公式的氧烷基化衍生物##STR2## 其中a、b和c各自表示零或正整数,它们的和在3到8的范围内,并且每个A基团独立地表示丙烯或乙烯基团。本发明的化合物可用于制造硬质聚氨酯泡沫。