发明名称 |
VERFAHREN ZUR HERSTELLUNG VON POLYMEREN MIT NIEDRIGEM MOLEKULARGEWICHT |
摘要 |
<p>A process for preparing polymers having molecular weights below 5,000 and polydispersity below 2.5 is provided. The polymerization is conducted in supercritical carbon dioxide at temperatures of at least 200 DEG C and pressures above 3,500 psi. The process can be continuous, semi-continuous, or batch. The polymers are useful as detergent additives, scale inhibitors, dispersants and crystal growth modifiers.</p> |
申请公布号 |
AT141619(T) |
申请公布日期 |
1996.09.15 |
申请号 |
AT19930307425T |
申请日期 |
1993.09.20 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
DADA, EMMANUEL ABIODUN;LAU, WILLIE;MERRITT, RICHARD FOSTER;PAIK, YI HYON;SWIFT, GRAHAM |
分类号 |
C08F2/00;C08F2/06;C08F2/44;C11D3/37;(IPC1-7):C08F2/06;C02F1/56 |
主分类号 |
C08F2/00 |
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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