Process for lining the inner surfaces of pipes or pipe sections

Details Process for lining the inner surfaces of pipes or pipe sections Process for lining the inner surfaces of pipes or pipe sections

1986-06-30

1988-08-09

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

138141, 156156, 156287, 156330, 405150, 525523, 528 93, 564280, B32B 3100

Patent

active

047625856

ABSTRACT:
A Process is described for lining the inner surfaces of pipes or pipe sections using the Insituform method by pressing a tubular flexible laminate made up of an essentially liquid-impermeable membrane and a fibrous layer which has been impregnated with a binder which is not as yet fully cured with the face with the binder against the inner surface of the pipe by means of liquid pressure in such a way that the laminate takes on the shape of the inner surface of the pipe and the binder becomes fully cured in the state, forming a firmly adhering internal lining. The binder used according to the invention in this process contains

REFERENCES:
patent: 2313988 (1943-03-01), Britton et al.
patent: 3284407 (1966-11-01), Winfield et al.
patent: 3520905 (1970-07-01), Johnson
patent: 4135958 (1979-01-01), Wood
patent: 4250293 (1981-02-01), Beitchman et al.
patent: 4499246 (1985-02-01), Tesson et al.

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