Organomineral products from aqueous alkali metal silicate, polyi

Details Organomineral products from aqueous alkali metal silicate, polyi Organomineral products from aqueous alkali metal silicate, polyi

1989-08-22

1992-04-28

Bleutge, John C.

Wells

Processes

Cementing, plugging or consolidating

166295, 405263, 523131, 528 27, E21B 33138

Patent

active

051079283

ABSTRACT:
In the production of organomineral products which are used, in particular, within the scope of the process for stratum consolidation, it is a disadvantage that foams are, as a rule used which have inadequate strength and that, in addition, the hard polymer segments which are responsible for the strength of the organomineral products, do not contribute to the adhesion of the organomineral products, if they are used in situ for stratum consolidation. A process is disclosed for reacting organic polyisocyanates with epoxy resins in the presence of aqueous alkali-metal silicate solutions, the coreactants being used in an amount of substance ratio corresponding to the relationship ##STR1## so that foaming of the reaction mixture is prevented and an organic polymer structure containing oxazolidinone ring structures is formed which bears adhesion-improving OH groups. The process is useful for stratum consolidation, stabilization and/or sealing of construction engineering works and bore holes, moulding and coating materials.

REFERENCES:
patent: Re31946 (1985-07-01), Meyer et al.
patent: 3763070 (1973-10-01), Shearing
patent: 4321184 (1982-03-01), Blount
patent: 4377646 (1983-03-01), Blount
patent: 4669919 (1987-06-01), Hilterhaus et al.

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