Antistatic filaments having an internal layer comprising carbon

Details Antistatic filaments having an internal layer comprising carbon Antistatic filaments having an internal layer comprising carbon

1979-06-14

1980-06-10

Cannon, James C.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

264171, 428368, 428373, 428395, 428397, B29F 310, B32B 2702, B32B 2714, B32B 2718

Patent

active

042073766

ABSTRACT:
An antistatic composite filament is disclosed, which has a three-layer structure including a core layer, a sheath layer and an intermediate layer, each of which is continuous in the axial direction of the filament. The core layer is composed of an oriented and crystallized, electrically non-conductive synthetic polymer. The sheath layer is composed of a synthetic polymer of the same kind as of the polymer constituting the core layer. The intermediate layer is composed of an electrically conductive synthetic polymer containing carbon black dispersed therein and is present in the entire intermediate area between the core layer and sheath layer. This filament is advantageously used as material for an antistatic carpet and/or dark color articles of wear such as uniforms or the like.

REFERENCES:
patent: 2932079 (1960-04-01), Dietzsch et al.
patent: 3658634 (1972-04-01), Yanagi et al.
patent: 3725192 (1973-04-01), Satoshi et al.
patent: 3803453 (1974-04-01), Hall
patent: 3924045 (1975-12-01), Ogasawara et al.
patent: 3969559 (1976-07-01), Boe
patent: 4045949 (1977-09-01), Paton et al.
patent: 4061827 (1977-12-01), Gould

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