Extruded conduits and method of making the same

Details Extruded conduits and method of making the same Extruded conduits and method of making the same

1988-12-05

1990-07-17

Seidleck, James

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138177, 138DIG7, 428910, F16L 912

Patent

active

049420704

ABSTRACT:
An extruded thermoplastic polymer conduit having a conduit wall of substantially uniform crystalline morphology through the entire thickness thereof free of any oriented surface zone and the process of making such conduits.

REFERENCES:
patent: 3103409 (1963-09-01), Bohres et al.
patent: 3382220 (1968-05-01), Bowman, Jr.
patent: 3383375 (1968-05-01), van der Vegt et al.
patent: 3553303 (1971-01-01), Zavasnik
patent: 3655848 (1972-04-01), Young et al.
patent: 3965226 (1976-06-01), Werwitzke et al.
patent: 4115495 (1978-09-01), Hartitz
patent: 4159889 (1979-07-01), Yagi et al.
patent: 4238538 (1980-12-01), Manwiller
patent: 4305899 (1981-12-01), van Dongeren

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