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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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