Process for the consolidation of geological formations

Details Process for the consolidation of geological formations Process for the consolidation of geological formations

C - Chemistry, Metallurgy

09

K

166/16, 31/22, 6

C09K 3/00 (2006.01) C09K 17/30 (2006.01)

Patent

CA 1074092

Abstract of the Disclosure This invention concerns a method of consolidating geological formations by applying a polyurethane reaction system to the material to be consolidated. The reaction system comprises a polyisocyanate component and a polyol component wherein the polyol component contains about 5 to 50 wt. % of a special polyether with an OH number under about 100. This polyether is produced by the reaction of a compound having more than one reactive hydrogen atom per molecule and a molecular excess of a 1,2-alkylene oxide. The reaction sys- tem can also contain conventional polyurethane additives such as foaming agents, fillers, foam stabilizers and catalysts. In a preferred embodiment, the special polyether is produced from ethylene diamine or triethanol amine.

231860

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