中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.039 seconds)

    CALCINED KAOLIN AS EXTENDER FOR COATINGS
    1.
    发明申请
    CALCINED KAOLIN AS EXTENDER FOR COATINGS 审中-公开

    公开(公告)号：US20190225545A1

    公开(公告)日：2019-07-25

    申请号：US16254217

    申请日：2019-01-22

    Applicant: BASF Corporation

    Inventor： Ismail Yildirim ,  Ashok Khokhani ,  Danny Williams ,  Bryan Mudd

    IPC: C04B33/04 ,  C04B33/02 ,  C04B33/13 ,  C04B33/32 ,  C04B35/622

    Abstract: Calcined kaolin comprising a narrow particle size distribution and a fluxing agent are disclosed herein. In some examples, the calcined kaolin comprises particles, wherein 90% by weight or less of the particles have a diameter of less than 10 microns; 80% by weight or less of the particles have a diameter of less than 5 microns; 40% by weight or less of the particles have a diameter of less than 2 microns; and 20% by weight or less of the particles have a diameter of less than 1 micron. The calcined kaolin exhibits improved brightness, whiteness, particle size distribution, mullite index, and +325 mesh residue level compared to conventional calcined kaolin. Methods of making and using the calcined kaolin particles are also provided herein.

    COARSE CALCINED KAOLIN AND USES THEREOF
    4.
    发明申请
    COARSE CALCINED KAOLIN AND USES THEREOF 审中-公开

    公开(公告)号：US20190010333A1

    公开(公告)日：2019-01-10

    申请号：US16028987

    申请日：2018-07-06

    Applicant: BASF Corporation

    Inventor： Wilson Wanene Kamau ,  Ashok Khokhani ,  Robert Shane Porzio ,  Nicholas Foley ,  William Joseph Rosano

    IPC: C09C1/42 ,  C09D7/40 ,  C09D133/04

    Abstract: Kaolin compositions comprising coarse kaolin particles are disclosed herein. The kaolin compositions can include kaolin particles having a GE brightness of at least 78 and a particle size distribution wherein at least 50% by weight of the kaolin particles have an equivalent size diameter (e.s.d.) of 30 μm or greater. In some embodiments, the kaolin compositions can include kaolin particles having a bimodal particle distribution. In other embodiments, the kaolin compositions can include kaolin particles having a low crystalline silica content, such as a crystalline silica content of 0.1% by weight or less and a particle size distribution wherein at least 50% by weight of the kaolin particles have an equivalent size diameter (e.s.d.) of 15 μm or greater. In some embodiments, the kaolin particles can be free of crystalline silica. Methods of making and using the kaolin compositions are also disclosed herein.

Patent Agency Ranking