发明名称 |
VERFAHREN UND POLYMER ZUR VERMEIDUNG VON BA/SR-KESSELSTEIN MIT EINGEBAUTER NACHWEISBARER PHOSPHORFUNKTIONALITÄT |
摘要 |
The present invention relates to processes 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 CH<SUB>2</SUB>=C(R<SUP>1</SUP>)R<SUP>2</SUP> where R<SUP>1</SUP> is H or CH<SUB>3</SUB> and R<SUP>2</SUP> is H, CH<SUB>3</SUB>, C<SUB>2</SUB>H<SUB>5</SUB> or phenyl, and (c) phosphorus-containing ethene derivatives of the formula CH<SUB>2</SUB>=CHX where X is a phosphoric acid radical, a phosphonic acid radical, a phosphorous acid radical or a corresponding salt or corresponding ester; (ii) 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 |
DE502008001709(D1) |
申请公布日期 |
2010.12.16 |
申请号 |
DE20085001709T |
申请日期 |
2008.02.06 |
申请人 |
BASF SE |
发明人 |
HERRERA TABOADA, LIDCAY;GUZMANN, MARCUS;NEUBECKER, KARIN;GOETHLICH, ALEXANDER |
分类号 |
C08F230/02;C02F5/14;C08F8/12;C08F8/44;C08F210/00;C08F222/04;C09K8/12;C09K8/528 |
主分类号 |
C08F230/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|