1.
    发明专利
    未知

    公开(公告)号:DE602006013862D1

    公开(公告)日:2010-06-02

    申请号:DE602006013862

    申请日:2006-09-22

    Abstract: Polyester fibers comprising a polyester resin composition which contains carbon black and comprises trimethylene terephthalate units as the main repeating structural units, and having an average resistivity (P) of 1.0 x 10 12 [©/cm] or lower; and a polyester textile product at least part of which is made of the polyester fibers. The polyester fibers have high conductivity and are highly excellent in conductivity stability to humidity fluctuations. The textile product comprising the polyester fibers has excellent performances, and examples thereof include a fibrous brush.

    3.
    发明专利
    未知

    公开(公告)号:DE602004024884D1

    公开(公告)日:2010-02-11

    申请号:DE602004024884

    申请日:2004-05-18

    Abstract: The present invention relates to fibers having excellent responsiveness to magnetic fields and excellent conductivity, as well as articles made of the same. In particular, the present invention relates to fibers having magnetic properties and conductivity, which are excellent in resistance to heat and responsiveness to magnetic fields in a unit where a magnetic field is applied, as well as in stability of conductivity when the humidity varies. In addition, the present invention relates to textiles using such fibers, knitted articles and cloths, such as non-woven cloths, short fibers, brush rollers made of short fibers, and electro-photographic apparatuses using brush rollers. The fibers of the present invention are 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. According to the preferred aspects of the present invention, (a) the average particle diameter of the above described magnetic material particles in spherical form is no greater than 5 µm, (b) the coercive force of the above described magnetic material particles in spherical form is no greater than 1000 A/m, and (c) the above described fibers are complex fibers which are made of magnetic layers that contain 20 wt% to 90 wt% of the above described magnetic material particles in spherical form, and protective layers where the content of the above described magnetic material particles in spherical form is less than 20 wt%.

    4.
    发明专利
    未知

    公开(公告)号:AT453744T

    公开(公告)日:2010-01-15

    申请号:AT04733663

    申请日:2004-05-18

    Abstract: The present invention relates to fibers having excellent responsiveness to magnetic fields and excellent conductivity, as well as articles made of the same. In particular, the present invention relates to fibers having magnetic properties and conductivity, which are excellent in resistance to heat and responsiveness to magnetic fields in a unit where a magnetic field is applied, as well as in stability of conductivity when the humidity varies. In addition, the present invention relates to textiles using such fibers, knitted articles and cloths, such as non-woven cloths, short fibers, brush rollers made of short fibers, and electro-photographic apparatuses using brush rollers. The fibers of the present invention are 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. According to the preferred aspects of the present invention, (a) the average particle diameter of the above described magnetic material particles in spherical form is no greater than 5 µm, (b) the coercive force of the above described magnetic material particles in spherical form is no greater than 1000 A/m, and (c) the above described fibers are complex fibers which are made of magnetic layers that contain 20 wt% to 90 wt% of the above described magnetic material particles in spherical form, and protective layers where the content of the above described magnetic material particles in spherical form is less than 20 wt%.

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