Conductive composite filament and process for producing the same

Details Conductive composite filament and process for producing the same Conductive composite filament and process for producing the same

1993-01-13

1994-06-07

Ryan, Patrick J.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428372, 428399, 57210, 57227, 57228, 57244, 57245, 57905, D02G 300

Patent

active

053188454

ABSTRACT:
A highly oriented, undrawn, conductive, composite filament is provided, which is white or colorless and has antistatic properties durable over a long period when clothing utilizing the fiber are actually put on and washed. The filament is a sheath-core composite filament comprising a sheath of a fiber-forming thermoplastic polymer (A) and a core of a composition (B) comprising a conductive material which comprises a conductive metal oxide and a thermoplastic polyamide, having a core resistance of not more than 9.times.10.sup.10 .OMEGA./cm.multidot.filament, the composite filament maintaining a critical elongation--an elongation reached in the course of extending a composite filament at which the core resistance exceeds 1.times.10.sup.11 .OMEGA./cm.multidot.filament at a D.C. voltage of 1 kV--of at least 5% and a shrinkage in hot water at 100.degree. C. of not higher than 20%. Such fiber can be obtained by conducting high orientation melt spinning at a rate of at least 2,500 m/min while selecting a polyamide as the core component to contain the white or colorless conductive material and having the composition previously dried to a moisture content of 100 to 1,200 ppm.

REFERENCES:
patent: 3551279 (1970-12-01), Ando et al.
patent: 3681910 (1972-09-01), Reese
patent: 3803453 (1974-04-01), Hull
patent: 4085182 (1978-04-01), Kato
patent: 4154881 (1979-05-01), Hirakawa et al.
patent: 4207376 (1980-06-01), Nagayasu et al.
patent: 4330989 (1982-05-01), Schnieder et al.
patent: 4457973 (1984-07-01), Matsui et al.
patent: 4743505 (1988-05-01), Yamada
patent: 4756969 (1988-07-01), Takeda

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