发明名称 |
METHOD FOR PREPARING A SUPERPLASTICIZER |
摘要 |
<p>The invention mainly relates to a method for preparing polyalkoxylated polycarboxylates in which is reacted, in the presence of water and a catalyst, at a temperature of 120 to 250°C: at least one polycarboxylic acid produced by polymerizing at least one unsaturated carboxylic acid; and at least one polyether having a free hydroxyl group capable of reacting with a carboxylic function of said polycarboxylic acid, characterized in that the catalyst is an alkaline or alkaline-earth salt of a strong protic acid.</p> |
申请公布号 |
WO2010112750(A3) |
申请公布日期 |
2010.11.25 |
申请号 |
WO2010FR50578 |
申请日期 |
2010.03.30 |
申请人 |
CHRYSO;DESSEROIR, ALEXANDRE;MAITRASSE, PHILIPPE |
发明人 |
DESSEROIR, ALEXANDRE;MAITRASSE, PHILIPPE |
分类号 |
C08G81/00;B01F17/00;C04B24/24 |
主分类号 |
C08G81/00 |
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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