Preformed yarn useful for forming composite articles and process

Details Preformed yarn useful for forming composite articles and process Preformed yarn useful for forming composite articles and process

1991-05-13

1993-04-27

Ryan, Patrick J.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428374, 428375, 428373, 57258, 57401, 264131, 264136, D02G 300

Patent

active

052060853

ABSTRACT:
A preformed yarn useful for forming composite articles is disclosed which includes a core of a multiplicity of fibers, fine powder provided in the interstices between the fibers, and a flexible sleeve formed of a thermoplastic resin and surrounding the core. The fine powder is formed of a material which neither melts nor reacts with the thermoplastic resin at a temperature up to 450.degree. C. and at a temperature up to the melting point of the thermoplastic resin. The incorporation of the fine powder between the fibers is effected by injecting fine powder-containing air from a jet nozzle and blowing the air against a bundle of the fibers.

REFERENCES:
patent: 3354013 (1967-11-01), Terrell et al.
patent: 3770488 (1973-11-01), Pepper et al.
patent: 3862287 (1975-01-01), Davis
patent: 3886015 (1975-05-01), Turner
patent: 4534919 (1985-10-01), McAliley et al.
patent: 4543274 (1985-09-01), Mulder
patent: 4614678 (1986-09-01), Ganga
patent: 4743413 (1988-05-01), Galichon
patent: 4772502 (1988-09-01), Okura et al.
patent: 4839199 (1989-06-01), de Jager

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