Plastic pipe having an oxygen-impermeable casing

Details Plastic pipe having an oxygen-impermeable casing Plastic pipe having an oxygen-impermeable casing

1983-10-11

1986-06-10

Marcus, Stephen

Heating systems

Water

138141, 138144, F16L 912

Patent

active

045938539

ABSTRACT:
A plastic pipe comprising an oxygen-impermeable casing, wherein the casing comprises a barrier layer for oxygen, and an adhesive layer adjacent to the circumferential surface of the pipe and attached to the circumferential surface by an sealed bond, wherein the casing surrounds the circumferential surface on all sides, and wherein the barrier layer is elastic, is substantially impermeable to oxygen and comprises a polyvinyl alcohol, a vinyl alcohol/ethylene copolymer, or polyacrylonitrile. Also disclosed is a process for the production of the pipe and a use of the pipe as a heating pipe.

REFERENCES:
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patent: 2489130 (1949-11-01), Harter
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patent: 3400029 (1968-09-01), Mesrobian et al.
patent: 3561493 (1971-02-01), Maillard et al.
patent: 3589402 (1971-06-01), Buck
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patent: 4044187 (1977-08-01), Kremkau
patent: 4123589 (1978-10-01), Korlatzki et al.
patent: 4178401 (1979-12-01), Weinberg et al.
patent: 4243074 (1981-01-01), Strutzel et al.
patent: 4296156 (1981-10-01), Lustig et al.

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