Continuous/discontinuous filament yarn or tow

Details Continuous/discontinuous filament yarn or tow Continuous/discontinuous filament yarn or tow

1994-05-17

1996-01-30

Edwards, N.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428376, 428377, 57 2, 57 18, 57203, 57249, 57210, 57905, D02G 300

Patent

active

054879418

ABSTRACT:
A yarn/tow composed of continuous thermoplastic filaments and discontinuous structural filaments wherein the discontinuous structural filaments are intermingled with the continuous thermoplastic filaments. Groups of discontinuous structural filaments have cut ends which are staggered with those of neighboring groups to allow a continuous structural path along the yarn or tow when the thermoplastic is melted to form the matrix of a composite structure. This hybrid continuous/discontinuous (CD) yarn or tow can be "stretched" as the thermoplastic filaments are melted, allowing the structural filaments to slip relative to one another. Woven forms of this CD precursor can then be molded into complex shapes starting from simple preform shapes.

REFERENCES:
patent: 3831369 (1974-08-01), Northup et al.
patent: 3835637 (1974-09-01), Russell
patent: 4028874 (1977-06-01), Maag et al.
patent: 4115992 (1978-08-01), Van Tijn
patent: 4729215 (1988-03-01), Sato et al.
patent: 4869059 (1989-09-01), Austin

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