Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1986-08-20
1988-12-20
Corbin, David H.
Hydraulic and earth engineering
Earth treatment or control
Chemical
166295, 299 11, 523130, E02D 312, C08G 1876
Patent
active
047922621
ABSTRACT:
The present invention is directed to a process for strengthening geological formations in underground mining or other operations introducing into the formation which is to be strengthened mixtures of a polyisocyanate component (a) and a polyol component (b) which react together to form polyurethanes, characterized in that the polyol component (b) is based on mixtures of (i) organic polyhydroxyl compounds having hydroxyl numbers of about 100 to 600 and (ii) dihydric alcohols having a molecular weight of 62 to about 150, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component (b).
REFERENCES:
patent: Re31946 (1985-07-01), Meyer et al.
patent: 3798186 (1974-03-01), Nakade et al.
patent: 4097587 (1978-06-01), Soma et al.
patent: 4113014 (1978-09-01), Kubens et al.
patent: 4114382 (1978-09-01), Kubens et al.
patent: 4277203 (1981-07-01), Reed, Jr. et al.
patent: 4295762 (1981-10-01), Slovinsky
patent: 4307980 (1981-12-01), Meyer et al.
patent: 4391926 (1983-07-01), Creyf
patent: 4452551 (1984-06-01), Arndt et al.
patent: 4454252 (1984-06-01), Meyer
patent: 4475847 (1984-10-01), Cornely et al.
patent: 4497595 (1985-02-01), Meyer et al.
patent: 4614754 (1986-09-01), Christmar
Gluckauf Journal, 1968, pp. 666-670.
Gluckauf Journal, 1977, pp. 707-711.
Bergbau Journal, 1977, pp. 124-129.
Cornely Wolfgang
Kapps Manfred
Mann Max
Mehesch Hans-Ernst
Meyer Frank
Bayer Aktiengesellschaft
Corbin David H.
Gil Joseph C.
Harsh Gene
Roy Thomas W.
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