Tubular lining material for city water pipe lines

Details Tubular lining material for city water pipe lines Tubular lining material for city water pipe lines

1985-10-18

1987-08-11

Epstein, Henry F.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138 97, 428265, F16L 5518, F16L 5700

Patent

active

046861262

ABSTRACT:
A tubular lining material for city water pipe lines, which comprises a tubular textile jacket made of warps and a weft woven in a tubular form overlaid with a fluid-impervious coat of a flexible synthetic resin, at least one of the warps and the weft being comprised of threads manufactured by intertwisting filament yarns with spun yarns and/or spun-like textured yarns of synthetic fibers, and the flexible synthetic resin comprising a blend of 60-40% by weight of a polyethylene resin and 40-60% by weight of a styrene-ethylene-butylene-styrene resin, having a stress-crack resisting property of at least 1000 hours which penetrates the interstices of the fabric structure of the tubular textile jacket. The tubular lining material is remarkably improved in flexibility, heat-resistance, abrasion-resistance, stress-crack resistance and other mechanical strength properties and is harmless to drinking water.

REFERENCES:
patent: 4292463 (1981-09-01), Bow et al.
patent: 4322574 (1982-03-01), Bow et al.
patent: 4334943 (1982-06-01), Zenbayashi et al.
patent: 4350548 (1982-09-01), Zenbayashi et al.
patent: 4368091 (1983-01-01), Outsuga et al.
patent: 4600615 (1986-07-01), Hyodo et al.

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