发明名称 |
Anionic/cationic polymer mixture for scale inhibition. |
摘要 |
<p>An anionic/cationic polymer mixture comprising (a) polyacrylic acid having a weight average molecular weight of from about 1-5 thousand, and (b) poly(dimethyldiallylammonium chloride) having a weight average molecular weight of from about 25 thousand to 1 million, wherein the weight ratio of (a) to (b) is from 1:1 to 1:8, has been found to give excellent inhibition of the formation and adherency of calcium carbonate scale, especially at elevated pH's of 8.5 - 9.5 and high saturation levels of calcium carbonate.</p> |
申请公布号 |
EP0516357(A1) |
申请公布日期 |
1992.12.02 |
申请号 |
EP19920304675 |
申请日期 |
1992.05.22 |
申请人 |
CALGON CORPORATION |
发明人 |
BENDIKSEN, BEVERLY;YORKE, MONICA |
分类号 |
C08L33/02;C02F5/00;C02F5/08;C02F5/10;C02F5/12;C08L33/00;C08L39/00 |
主分类号 |
C08L33/02 |
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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