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    Doped Oxide powders in laser markings and methods of use
    4.
    发明申请
    Doped Oxide powders in laser markings and methods of use 审中-公开
    激光标记中的掺杂氧化物粉末和使用方法

    公开(公告)号：US20130188003A1

    公开(公告)日：2013-07-25

    申请号：US13694946

    申请日：2013-01-22

    Applicant: Jagdip Thaker

    Inventor： Jagdip Thaker

    IPC: C08K3/22

    CPC classification number: C08K3/22 ,  C08J3/226

    Abstract: Laser marking additives of at least one the core particle selected from the group consisting of copper oxide, chromium oxide, ceramic yellow, cobalt oxide, tungsten oxide, vanadium oxide, titanium oxide, ceramic red, molybdenum oxide, zinc sulfide and any combination thereof, and a coating covering at least part of the core particle comprising at least one oxide of a metal selected from the group consisting of Si, Ti, Ce, Zr, Zn, Al, Ba, Sr, La, Mg, Ca, V, Ta and mixtures thereof. This powder is used with 1064 nm wavelength laser (semiconductor lasers, fiber lasers) to change color in a plastic or polymer substrate to give contrast in laser marking plastics.

    Abstract translation: 选自氧化铜，氧化铬，陶瓷黄，氧化钴，氧化钨，氧化钒，氧化钛，陶瓷红，氧化钼，硫化锌及其任意组合中的至少一种核心颗粒的激光标记添加剂， 以及覆盖至少一部分芯粒的涂层，其包含选自Si，Ti，Ce，Zr，Zn，Al，Ba，Sr，La，Mg，Ca，V，Ta中的至少一种金属的氧化物 及其混合物。 该粉末与1064nm波长激光器（半导体激光器，光纤激光器）一起使用以改变塑料或聚合物基板中的颜色，从而在激光标记塑料中形成对比度。

    Laser fusible coating compositions used for laser making systems and methods
    5.
    发明申请
    Laser fusible coating compositions used for laser making systems and methods 审中-公开
    用于激光制备系统和方法的激光熔融涂料组合物

    公开(公告)号：US20110318499A1

    公开(公告)日：2011-12-29

    申请号：US13135039

    申请日：2011-06-23

    Applicant: Jagdip Thaker

    Inventor： Jagdip Thaker

    IPC: C08J7/04 ,  C09J131/04 ,  C09J127/12

    CPC classification number: C09J127/12 ,  B41M5/00 ,  B41M5/366 ,  C09J131/04

    Abstract: A laser fusible composition comprises a marking component, e.g. plastic dyes and pigments, coated with hot melt adhesive composition which can absorb laser irradiation at 780-10600 nm, and thereby causes through laser fusing, the composition to adhere firmly to metals, ceramics, glass, porcelain, marble, natural stone, paper and cardboards when heated.

    Abstract translation: 激光熔融组合物包含标记组分，例如。 塑料染料和颜料，涂覆有可以吸收780-10600nm激光照射的热熔胶组合物，从而通过激光熔合，使组合物牢固地粘附到金属，陶瓷，玻璃，瓷器，大理石，天然石材，纸和 纸板加热时。

    Dispersion polyermized microsphere particles
    6.
    发明申请
    Dispersion polyermized microsphere particles 审中-公开

    公开(公告)号：US20050014083A1

    公开(公告)日：2005-01-20

    申请号：US10621528

    申请日：2003-07-17

    Applicant: Jagdip Thaker

    Inventor： Jagdip Thaker

    IPC: G03G9/08

    CPC classification number: G03G9/0806 ,  G03G9/0827

    Abstract: The present invention provides a process for producing microsphere particles comprising the following steps: (a) charging to a first vessel water and a dispersion stabilizer and mixing to form a water phase, (b) charging co-monomers to second vessel at 60° C., (c) treating a charge control agent, a pigment and a micronized wax with a coupling agent, (d) charging to the second vessel the treated charge control agent, pigment and micronized wax of step (c), (e) charging and dissolving the polymerization initiator to the second vessel to form a co-monomer phase, (f) pumping the co-monomer phase of step (e) through a disperser at a rate of about one liter per hour while simultaneously pumping the water phase of step (a) through the disperser at a rate of about four liters into a polymerization reactor, (g) mixing the water and monomer phases together in the polymerization reactor having a paddle rotation speed of about 200 rpm (30 m/sec) at a temperature of about 75° C. for about four to about six hours under an inert atmosphere to form a slurry of polymerized microsphere particles having a particle size from about 3 to about 20 microns, (h) mixing the slurry of polymerized microsphere particles in the polymerization reactor under vacuum and a temperature of about 85 degrees C. to remove any residual co-monomers, (i) acidifying the slurry to dissolve the dispersion stabilizer, (j) passing the slurry of step (i) through a centrifuge to remove water and dispersion stabilizer dissolved therein to provide centrifuged polymerized microsphere particles, and (k) washing the centrifuged polyermized microsphere particles with water until a pH of 7 is achieved. The present invention also provides color toners for use in digital laser printers and photocopiers as well as pharmaceutical and cosmetic products comprising polymerized microsphere particles produced by the process disclosed herein.

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