Multi-layer liner for waste water system rehabilitation

Details Multi-layer liner for waste water system rehabilitation Multi-layer liner for waste water system rehabilitation

1995-04-19

1997-04-08

Raimund, Christopher

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283186, 4283177, B32B 2700

Patent

active

056186169

ABSTRACT:
A technique and device for rehabilitating or repairing waste water system components or the like, comprising a spray-applied, multi-layer liner which seals the components and imparts structural integrity. The liner comprises a primer layer, a first moisture barrier layer, a foam layer and a second moisture barrier layer. The first and second moisture barrier layers are preferably made of the same material and form a skin on both sides of the internal foam layer. The combination of the foam layer and the two moisture barrier layers imparts structural strength and rigidity to the cured liner. Preferably, the primer layer is an epoxy, the moisture barrier layers a polyurea and isocyanate blend, and the foam layer a polyurethane.

REFERENCES:
patent: 3615969 (1971-10-01), Hegg
patent: 4016323 (1977-04-01), Volovsek
patent: 4122203 (1978-10-01), Stahl
patent: 4421827 (1983-12-01), Phillips
patent: 5002438 (1991-03-01), Strong
patent: 5032197 (1991-07-01), Trimble

Affiliated with

Also associated with

Rating

Multi-layer liner for waste water system rehabilitation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-layer liner for waste water system rehabilitation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-layer liner for waste water system rehabilitation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2396744