Composite tube and method of manufacture

Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing

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428 364, 428 365, 428283, 428284, 428286, 428290, 4283133, 4283157, 4283159, 4283186, 428323, 428325, 428402, 428406, 428339, F16L 912, B32B 518

Patent

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049685457

ABSTRACT:
The invention relates to tubular composite constructions of a composite comprising at least one layer of a prepreg construction of continuous filaments of high modulus fiber in a resin matrix and at least one layer of a thin film of syntactic foam comprising rigid microballoons uniformly dispersed in a matrix resin cocurable with the resin matrix of the prepreg.

REFERENCES:
patent: 3622437 (1971-11-01), Hobaica
patent: 3989562 (1976-11-01), Hladik et al.
patent: 4013810 (1977-03-01), Long
patent: 4135019 (1979-01-01), Kourtides et al.
patent: 4178713 (1979-12-01), Higuchi
patent: 4212693 (1980-07-01), Saito et al.
patent: 4355061 (1982-10-01), Zeigler

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