发明名称 Alkylene oxide adducts of vicinal toluenediamine
摘要 The subject invention relates to adducts of vicinal toluenediamine prepared by: (a) reacting from one to three moles of ethylene oxide with vicinal toluenediamine at a temperature of 125 DEG C., and (b) reacting the product of (a) with four to eight moles of propylene oxide at a temperature of at least 140 DEG C. in the present of at least 1.0 part of an alkali metal hydroxide catalyst. The adducts generally have a hydroxyl number of 300 to 500 and are particularly useful for the preparation of rigid polyurethane foams.
申请公布号 US4562290(A) 申请公布日期 1985.12.31
申请号 US19810326314 申请日期 1981.12.01
申请人 BASF WYANDOTTE CORPORATION 发明人 KORCZAK, ALEXANDER;LEVIS, JR., WILLIAM W.
分类号 C08G18/48;C08G18/50;(IPC1-7):C07C89/02 主分类号 C08G18/48
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