Abstract: An ink formulation comprises a binder and at least one marking component, which comprises at least one metal oxides or oxyanion and at least one oxidizing/reducing agent, which absorbs laser irradiation between wavelengths of 780-10,600 nm, thereby causes the formulation to change color.

Abstract: An ink formulation comprises a binder and at least one marking component, which comprises at least one metal oxide or oxyanion and at least one oxidizing/reducing agent, which absorbs laser irradiation between wavelengths of 780-10,600 nm, thereby causes the formulation to change color.

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: An ink formulation comprises a binder and at least one marking component, which comprises at least one metal oxides or oxyanion and at least one oxidizing/reducing agent, which absorbs laser irradiation between wavelengths of 780-10,600 nm, thereby causes the formulation to change color.

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: 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.