发明名称 |
Process for preparing nonionic surfactants by an oxyalkylation with calcium and/or strontium catalysts. |
摘要 |
The process for preparing nonionic surfactants wherein a narrower molecular weight distribution is obtained by the use of a calcium and/or strontium catalyst which comprises reacting a reactive hydrogen compound selected from the group consisting of monohydric alcohols having from about 8 to about 20 carbon atoms and a difunctional polypropylene oxide polymer having an average molecular weight in the range of 1000 to 5000 with an alkylene oxide having 2 to 4 carbon atoms at a temperature at which the reaction proceeds in the presence of at least a catalytic amount of a basic salt of calcium and/or strontium selected from the group consisting of hydroxide, alkoxide and phenoxides and a catalytic amount of an oxyalkylation catalyst promoter. |
申请公布号 |
EP0092256(A1) |
申请公布日期 |
1983.10.26 |
申请号 |
EP19830103891 |
申请日期 |
1983.04.20 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
MCCAIN, JAMES HERNDON;THEILING, LOUIS FOSTER, JR. |
分类号 |
C11D1/72;B01F17/42;B01J27/00;B01J27/04;B01J27/16;B01J27/20;B01J31/00;B01J31/02;B01J31/04;C07B61/00;C07C41/00;C07C41/02;C07C41/03;C07C43/11;C07C67/00;C08G65/26;C08G65/28 |
主分类号 |
C11D1/72 |
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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