发明名称 |
Delaying the gelation of water soluble polymers. |
摘要 |
<p>A process is disclosed for delaying the rate at which water soluble polymers are gelled by an aldehyde and a phenolic compound and for increasing the mechanical strength of these gels which comprises contacting an aqueous solution of said water soluble polymer, aldehyde, phenolic compound, and water with from .004 to about 0.049 wt % of a transition metal ion. In addition, novel gelable compositions are disclosed.</p> |
申请公布号 |
EP0280083(A1) |
申请公布日期 |
1988.08.31 |
申请号 |
EP19880101538 |
申请日期 |
1988.02.03 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
MUMALLAH, NAIM ABDUL-KADER;MORADI-ARAGHI, AHMAD |
分类号 |
C09K8/72;C09K8/88;(IPC1-7):E21B43/25;E21B43/27 |
主分类号 |
C09K8/72 |
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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