发明名称 |
VERFAHREN UND POLYMER ZUR VERMEIDUNG VON BA/SR- KESSELSTEIN MIT NACHWEISBARER PHOSPHORFUNKTIONALITÄT |
摘要 |
The present invention relates to a process for preparing a phosphorus-containing polymer, comprising the steps of (i) copolymerizing at least (a) monoethylenically unsaturated dicarboxylic anhydrides having from 4 to 6 carbon atoms with (b) olefins of the formula CH2═C(R1)R2 where R1 is H or CH3 and R2 is H, CH3, C2H5 or phenyl; (ii) reacting the polymer formed in step (i) with at least one primary or secondary phosphorus-containing amine or a phosphorus-containing alcohol and (iii) at least partly ring-opening the remaining anhydride groups. The invention further relates to phosphorus-containing polymers obtainable from this process, and to processes for preventing Ba/Sr scale with the aid of the polymer. |
申请公布号 |
AT487745(T) |
申请公布日期 |
2010.11.15 |
申请号 |
AT20070857652T |
申请日期 |
2007.12.17 |
申请人 |
BASF SE |
发明人 |
HERRERA TABOADA, LIDCAY;GUZMANN, MARCUS;NEUBECKER, KARIN;GOETHLICH, ALEXANDER |
分类号 |
C08F8/40;C02F5/14;C02F101/10;C08F210/10;C08F222/06;C09K8/528 |
主分类号 |
C08F8/40 |
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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