发明名称 |
COPOLYMER BASED ON A COMPOUND COMPRISING SULFONIC ACID |
摘要 |
<p>A copolymer containing, as monomer components, a) at least one sulfonic acid-containing compound, b) at least one nitrogen-containing N-vinylamide, one acrylamide or methacrylamide and c) at least one bifunctional or higher-functional vinyl ether is proposed. These copolymers are suitable in particular as thixotropic agents, antisegregation agents and water retention agents and overall as an additive in cement-containing but also gypsum-based systems. Such copolymers having a molecular weight of >40 000 g/mol can be used in particular as admixtures in the exploration of mineral oil and natural gas deposits.</p> |
申请公布号 |
EP2222612(A1) |
申请公布日期 |
2010.09.01 |
申请号 |
EP20080859161 |
申请日期 |
2008.11.24 |
申请人 |
BASF SE |
发明人 |
SPINDLER, CHRISTIAN;ASSMANN, ANDREA;HUBER, UWE |
分类号 |
C04B24/16;C04B24/24;C08F220/02;C08F220/58;C08F222/02;C08F226/00;E21B33/13 |
主分类号 |
C04B24/16 |
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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