Rendering porous structures impermeable by treatment with...

Details Rendering porous structures impermeable by treatment with... Rendering porous structures impermeable by treatment with...

C - Chemistry, Metallurgy

09

K

31/22

C09K 17/22 (2006.01) C09K 8/512 (2006.01)

Patent

CA 1091913

Abstract of the Disclosure Aqueous solutions of amide polymers such as polyacrylamide when treated with small amounts of a water-soluble polyaldehyde at an alkaline pH react to form firm gels within a short time at ambient tempera- ture. Such gels are usefully employed to plug porous subterranean formations, for grouting of leaking soil pipes or wells, and to otherwise render porous structures impermeable to the passage of liquids such as water.

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