Filamentary structure

Details Filamentary structure Filamentary structure

1981-05-04

1983-05-17

Kendell, Lorraine T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428369, 428370, 428373, 428398, D02G 300

Patent

active

043840221

ABSTRACT:
A filamentary structure comprises a spiral thermoplastic core filament disposed within a thermoplastic sheath component, consisting either of a tube or of at least three thermoplastic filaments, the sheath component being joined to the successive turns of the spiral core filament. The spiral core filament and the sheath component may comprise the same or different thermoplastic polymers, suitable polymers being polyamides, polyesters and polyolefins.
The core filament and the sheath component may be extruded together from a spinning jet, and a plurality of the filamentary structures may be extruded side-by-side so that their sheath components are joined together to form a fabric structure.

REFERENCES:
patent: 3686049 (1972-08-01), Manner et al.
patent: 3687759 (1972-08-01), Werner et al.
patent: 3691004 (1972-09-01), Werner et al.
patent: 3837988 (1974-09-01), Hennen et al.
patent: 3852152 (1974-12-01), Werner et al.
patent: 4012249 (1977-03-01), Stapp
patent: 4017659 (1977-04-01), Brumlik
patent: 4048371 (1977-09-01), Brumlik
patent: 4351683 (1982-09-01), Kusilek

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