Sealant for internally sealing pipeline

Details Sealant for internally sealing pipeline Sealant for internally sealing pipeline

1984-12-04

1986-06-10

Michl, Paul R.

Pipes and tubular conduits

Distinct layers

Coated

406193, F16L 914

Patent

active

045937222

ABSTRACT:
A liquid sealant of the aqueous emulsion type to be delivered in foamed state into a pipeline requiring leakage repair and/or prevention. A large part of this sealant is drained from the pipeline, and the part of the sealant remaining on inner walls of the pipeline is allowed to cure. The sealant contains coagulations of weakly cohering fine particles of inorganic oxide at less than 5 percent, and the particles have diameters not exceeding 0.05.mu..

REFERENCES:
patent: 3069375 (1962-12-01), Bullitt
patent: 3249463 (1966-05-01), Carlee
patent: 3455241 (1969-07-01), Perkins
patent: 3907581 (1975-09-01), Willcox
patent: 3940358 (1976-02-01), Bernett
patent: 4104229 (1978-08-01), Sekmakas
patent: 4249953 (1981-02-01), Keifer
patent: 4283320 (1981-08-01), Carroll
patent: 4319610 (1982-03-01), Eckner
patent: 4421569 (1983-12-01), Dichter
Chemical Engineering, Jun. 11, 1962, p. 207.

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