摘要:
Particles and manufacturing methods thereof are provided. The manufacturing method of the particle includes providing a precursor solution containing a precursor dissolved in a solution, and irradiating the precursor solution with a high energy and high flux radiation beam to convert the precursor to nano-particles. Particles with desired dispersion, shape, and size are manufactured without adding a stabilizer or surfactant to the precursor solution.
摘要:
Pigments for inkjet inks are controllably functionalised to improve water-dispersibility, ozone resistance, etc., by irradiation of the pigment particle with high energy radiation, such as gamma radiation in air or by plasma activation, to form a stable functionalisable intermediate pigment particle, then activating the stable functionalisable intermediate, e.g. by heating, in the presence of a functionalising precursor (e.g. a polymer or polymerisable monomer) to form a modified pigment particle having one or more functionalising group grafted onto the pigment particle.
摘要:
A process for creating readily or highly dispersible nanoparticles on which chemically reactive functional groups or ligands have been placed. An ultra-high shear fluidic processor is used to change the size distribution of nanoparticle agglomerations and facilitate the formation of stable dispersions of such nanoparticles, as well as the placement of various chemically reactive functional groups or ligands on exposed surface areas of such nanoparticles. Such functionalized nanoparticle agglomerations have a broader size distribution (with a substantial increase in the proportion of smaller agglomerations), can exhibit enhanced dispersion characteristics and, when dispersed in various bulk materials, can impart to such bulk materials the desirable physical or chemical properties associated with the selected chemically active functional groups that have been attached to the surface areas of such agglomerations.
摘要:
Disclosed herein is a method of forming pigment pseudoparticles from pigment particles, comprising polarizing the pigment particles with a gas and agglomerating the polarized pigment particles to form pigment pseudoparticles. Also disclosed herein is a pigment pseudoparticle comprising pigment particles bonded together primarily by an induced level of intermolecular electrostatic attractive force, wherein the pseudoparticle is substantially free of internal dust. Furthermore, an apparatus is disclosed herein for creating pigment pseudoparticles from pigment particles, the apparatus comprising a hollow vessel having an inner cylindrical surface, a plurality of scoops extending inwardly from the inner surface and positioned along the axial length of the hollow vessel and means for passing pigment particles through the gas. Additional embodiments of the invention are disclosed herein.
摘要:
Titanium Dioxide and other pigments or powders processed by this present process are smoothly discharging, low dusting, agglomerated, compaction resistant, extremely friable and fully dispersable. The process for the production of smoothly discharging pigment or powder consists of gently blending in the presence of an air flow and an electrostatic charge where said pigment or powder is being agglomerated with or without a treated or non-treated seed particle of the same or similar pigment whereas said pigment or powder in accordance with the invention yields a composition of a substantially spherical particulate that has a pseudo-particle size of 0.1-5.0 mm in the form of smoothly discharging, low dusting, non-sticky, agglomerated, compaction resistant pigment or powder, in which said pigment or powder particles are 80%-99.9% by weight, pigment, and in which the pigments or powders are compatible with inks, paints and plastics, and can be readily dispersed and incorporated into the same.
摘要:
Nanotechnology relating to color pigments, compositions, formulations, applications, advantages, methods of incorporating pigments into compositions of matter, new color effects are described, and multifunctional pigments, protective pigments, and methods of manufacturing such pigments are disclosed.
摘要:
A process for preparing embossed, finely-divided, thin, bright-metal particles which process comprises forming an embossed release surface to al least one side of a carrier sheet, depositing a metal film onto the release surface so that the metal film conforms to the embossed surface, solubilizing the release surface, removing the metal film from the carrier sheet, and breaking the thin metal film onto embossed particles having an average diameter of between 10 to 50 microns. The film may also take the form of an optical stack.
摘要:
Post-processing methods for nanoparticles are disclosed. Methods for real time quality control of nanoscale powder manufacture are discussed. Uses of post-processed particles and consolidation methods are disclosed. Disclosed methods can enable commercial use of nanoscale powders in wide range of nanotechnology applications.
摘要:
Finely divided embossed metal particles are prepared by forming an embossment on a carrier surface in which the embossment comprises a machine readable image produced by a diffraction grating pattern, a holographic image pattern or an image visible solely by optical magnification. A layer of metal is applied to the surface so the layer adopts the complement or the embossment. The layer is then separated from the surface and reduced to embossed particles. Alternatively, the embossment can be formed on the carrier sheet directly or on the outer surface of a release coating formed on the carrier sheet. When removing the film of metal from the release-coated carrier, the carrier sheet with the release coating and film of metal can be passed through a release environment which causes the release coating to separate the film and carrier, but which is nondestructive of the metal. The metal particles can be collected in a solvent which is nonreactive with the metal, and the metal particles can be broken further into pigment particles. The diffraction grating can have from about 5,000 to about 11,000 grooves per cm.
摘要翻译:通过在载体表面上形成压花来制备细小的压花金属颗粒,其中压花包括由衍射光栅图案,全息图像图案或仅通过光学放大可见的图像产生的机器可读图像。 一层金属被施加到表面,因此该层采用补体或浮雕。 然后将该层与表面分离并还原成压花颗粒。 或者,压花可以直接形成在载体片上或形成在载体片上形成的剥离涂层的外表面上。 当从剥离涂层的载体中去除金属膜时,具有剥离涂层和金属膜的载体片材可以通过释放环境,其使得剥离涂层分离膜和载体,但是非金属的非破坏性 。 金属颗粒可以被收集在与金属不反应的溶剂中,金属颗粒可以进一步破碎成颜料颗粒。 衍射光栅可具有约5,000至约11,000个凹槽/ cm 2。