Fibers having excellent responsiveness to magnetic fields and excellent conductivity, as well as articles made of the same
AssigneeToray Industries, Inc.
InventorsKouki Miyazono, Yuhei Maeda
Life of this patent
Estimating the term…
Abstract
Fibers having excellent responsiveness to magnetic field and conductivity, made of a polymer having fiber forming functions which contains magnetic material particles in spherical form having a saturation magnetic flux density of no less than 0.5 tesla. The fibers can include: (a) the average particle diameter is no greater than 5 μm, (b) the coercive force is no greater than 1000 A/m, and (c) the fibers are complex fibers which are made of magnetic layers that contain 20 wt % to 90 wt % of magnetic material particles, and protective layers where the content of the magnetic material particles is less than 20 wt %.
Claims20
Fibers comprising A) a polymer having fiber forming functions;
- and B) magnetic material particles in spherical form having a saturation magnetic flux density of no less than 0.5 tesla and made of at least one metal selected from the group consisting of iron, nickel and cobalt having a purity of no less than 98% contained in the polymer, wherein the fibers are core and sheath complex fibers comprising magnetic layers made of a core component and containing 20 wt% to 90 wt% of the magnetic material particles in spherical form, and protective layers made of a sheath component and containing less than 20 wt% of the magnetic material particles in spherical form.
Dependencies are inferred from the claim text.