Electret fibers having improved charge stability, process for the production thereof and textile material containing these electret fibers.
AssigneeHiecgst Aktiengesellshat
InventorsJorg Dahringer, Werner Groh, Hans-Tobias Macholdt, Peter Boening
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Abstract
Electret fibers having improved charge stability are described which are composed of a material which predominantly contains a fiber-forming polymer or polycondensate and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5%, by weight), based on the weight of the material, of organic or organometallic charge control compounds, as contained in toners for electrophotographic processes, and a process for the production thereof. In addition, textile materials containing these electret fibers are described.
Claims11
An electret fiber having improved charge stability composed of a material predominantly containing a fiber-forming polymer selected from the group consisting of halogenated polyolefin, polyacrylates, polyacrylonitrile, polystyrene, fluoropolymers, polyethylene, polytetrafluoroethylene, and perfluorinated ethylene/propylene copolymer or polycondensate selected from the group consisting of polyesters, polycarbonates, aliphatic or aromatic polyamides, polyimides, polyetherketones, poly(arylene sulfides), polyacetals and cellulose ethers, and 0.01 to 30% by weight based on the weight of the material, of organic crystalline or organometallic crystalline charge control compounds contained in the material predominantly in particle form.
Dependencies are inferred from the claim text.