Process of sealing and strengthening water-bearing geological fo

Details Process of sealing and strengthening water-bearing geological fo Process of sealing and strengthening water-bearing geological fo

1982-03-22

1984-06-12

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521126, 521173, 521904, 521905, 523132, 528905, 528 58, 405264, C08G 1808, C08G 1824, C09K 1700, E02D 312

Patent

active

044542526

ABSTRACT:
Processes for sealing and strengthening water-bearing geological formations by injection thereinto a polyurethane-resin-forming composition that is especially suitable for this purpose which comprises a conventional polyisocyanate, a conventional polyol, an accelerator for the reaction between the polyisocyanate and the polyol, and a foam stabilizer.

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patent: 3345311 (1967-10-01), Ehrlich et al.
patent: 3347804 (1967-10-01), Buckley
patent: 3450648 (1969-06-01), Windemuth et al.
patent: 3493525 (1970-02-01), Britain
patent: 3623330 (1971-11-01), Nakade et al.
patent: 3822223 (1974-07-01), Gemeinhardt et al.
patent: 3847722 (1974-11-01), Kistuer
patent: 3894131 (1975-07-01), Speech

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