发明名称 |
GRAFT COPOLYMERS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF |
摘要 |
A graft copolymer based on a component a) consisting of silica which has been reacted with an unsaturated silane, and a polymer component b) containing sulphonic acid is proposed. The silica used is preferably a nanosilica and the unsaturated silane is an ethylenically unsaturated alkoxysilane. The component b) is represented by a copolymer based on AMPS and a further ethylenically unsaturated monomer. The polymer according to the invention, which as a rule is a nanocomposite, is outstandingly suitable as an additive in construction chemistry applications and in the development, exploitation and completion of underground mineral oil and natural gas deposits, its effect as a water retention agent being particularly advantageous at high salinities and increased temperatures.
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申请公布号 |
US2011118382(A1) |
申请公布日期 |
2011.05.19 |
申请号 |
US20080990346 |
申请日期 |
2008.05.21 |
申请人 |
REICHENBACH-KLINKE ROLAND;PLANK JOHANN;LANGE PETER;KEILHOFER GREGOR |
发明人 |
REICHENBACH-KLINKE ROLAND;PLANK JOHANN;LANGE PETER;KEILHOFER GREGOR |
分类号 |
C09K8/42;B82Y30/00;C08G77/455;C08L83/10 |
主分类号 |
C09K8/42 |
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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