Reinforced plastic composite structure

Details Reinforced plastic composite structure Reinforced plastic composite structure

1979-05-29

1984-05-29

Bryant, III, James E.

Pipes and tubular conduits

Reinforced

With embedded element

138125, 138137, 138175, F16L 904

Patent

active

044508735

ABSTRACT:
A reinforced plastic composite structure, particularly a pipe, is disclosed herein. The composite pipe, which resists acid attack even in underground applications where the pipe is subjected to external loading stresses, typically includes at least an inner zone, e.g. a resin impregnated fibrous sheet and an outer zone including a layer or layers of fibers. A cured polymeric resin matrix bonds the fibrous sheet and the fibrous layers together in a laminar relationship. The improvement disclosed herein comprises incorporating into this polymeric resin matrix a particulate substance which has specific particle size limitations and which is selected from the group consisting of portland cement, marble dust or a mixture thereof.

REFERENCES:
patent: 2962052 (1960-11-01), Sergovic
patent: 3406724 (1968-10-01), Carlstrom et al.
patent: 3532132 (1970-10-01), Rubenstein
patent: 3581780 (1971-06-01), Ono et al.
patent: 3953629 (1976-04-01), Wesch

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