Pipes and tubular conduits – Flexible – Casing
Patent
1981-11-25
1983-08-09
Dixon, Jr., William R.
Pipes and tubular conduits
Flexible
Casing
138124, 138137, 138151, 428 36, 426105, 426135, 426140, F16L 1100, A22C 1300
Patent
active
043973370
ABSTRACT:
Disclosed is a tubular casing comprising a fiber-reinforced regenerated cellulose wherein the fiber-reinforcement comprises a fiber web comprising first and second edge regions, parallel to the longitudinal axis, which are overlapped and bonded to form a tube; an impregnation layer of a thermoplastic synthetic resin applied on the entire inwardly-facing surface of the fiber-reinforcement and present in a weight per unit area of less than about 50 g/m.sup.2, the impregnation layer comprising the bond for the edge regions; and a regenerated cellulose surface on the outer surface of the fiber-reinforcement. Also disclosed is a process for manufacturing the tubular casing.
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Heidel Peter
Porrmann Herbert
Stenger Karl
Dixon Jr. William R.
Hoechst Aktiengesellschaft
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