发明名称 |
Aqueous gelable compositions having extended gelation time and methods of preparing same |
摘要 |
Aqueous gelable compositions comprising water, a polymer, a polyvalent metal compound wherein the metal can be reduced to a lower polyvalent valence state, a reducing agent, and a complexing agent for complexing with newly reduced ions of said metal and increasing the gelation time of said compositions; and methods of preparing said compositions.
|
申请公布号 |
US4110230(A) |
申请公布日期 |
1978.08.29 |
申请号 |
US19750620082 |
申请日期 |
1975.10.06 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
HESSERT, JAMES E.;JOHNSTON, JR., CHESTER C. |
分类号 |
C09K8/512;C09K8/90;(IPC1-7):C09K3/00 |
主分类号 |
C09K8/512 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|