Tubular lining material and a method and apparatus for manufactu

Details Tubular lining material and a method and apparatus for manufactu Tubular lining material and a method and apparatus for manufactu

1985-02-21

1986-07-15

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138 97, 138125, 138126, 428246, F16L 5518

Patent

active

046006150

ABSTRACT:
A tubular lining material and a method and apparatus for manufacturing same, the tubular lining material being suitable for reinforcing pipe lines and comprising a tubular textile jacket having on the external surface thereof a coating of plural synthetic resins in the form of laminated layers, characterized in that the outermost layer of the coating is composed exclusively or predominantly of a thermoplastic polyester elastic resin and the innermost layer of the coating is composed exclusively or predominantly of a thermoplastic polyurethane elastic resin, the coating having been bonded superficially onto the external surface of the tubular textile jacket. The tubular lining material is manufactured by simultaneously extruding plural synthetic resins in an annularly layered form superficially onto the external surface of the tubular textile jacket, using an apparatus provided with an annularly arranged multiple extruders. The tubular lining material is significantly improved in flexibility and adhesion to the tubular textile jacket.

REFERENCES:
patent: 3996967 (1976-12-01), Takada
patent: 4153080 (1979-05-01), Murray, Jr. et al.
patent: 4334943 (1982-06-01), Zenbayashi et al.
patent: 4355664 (1982-10-01), Cook et al.
patent: 4368091 (1983-01-01), Ontsuga et al.

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