Patent application number | Description | Published |
20100160536 | Method of preparing polymer modified pigments - The present invention relates to a method of preparing a polymer modified pigment comprising the steps of, combining, in any order, a modified pigment comprising a pigment having attached at least one reactive group, a polymer comprising at least one functional group, and a non-reactive diluent, to form a reaction mixture, reacting the polymer and the modified pigment in the reaction mixture to form a mixture comprising the polymer modified pigment and the non-reactive diluent; and removing the non-reactive diluent from the mixture to form the polymer modified pigment. Also disclosed are the resulting polymer modified pigments and inkjet ink compositions comprising them. | 06-24-2010 |
20100175585 | Modified pigment containing inkjet ink compositions having a reduced conductivity increase - The present invention relates to a modified pigment comprising a pigment having attached at least one salt of a geminal bisphosphonic acid group or partial esters thereof, as well as to dispersions and inkjet ink compositions comprising such modified pigments. Preferably the salt comprises a quaternary ammonium counterion. | 07-15-2010 |
20100264371 | COMPOSITION INCLUDING QUANTUM DOTS, USES OF THE FOREGOING, AND METHODS - One aspect of the present invention relates to a composition comprising a host material including quantum dots and one or more of the following additives: a UV absorbing dye; a humectant; an occlusant; a terpene; a surfactant; an antioxidant; a pigment; a fragrance; a fatty acid ester emulsifier; a fatty acid ester; a high molecular weight alcohol; an oxygen scavenger; a fatty alcohol; a silicone fluid; and a hydrocarbon oil. Other aspects of the present invention relate to a particle comprising a composition of the invention, a powder comprising a particle of the invention, a formulation including a composition of the invention, a coating including a composition of the invention, a taggant including a composition of the invention, a device including a composition of the invention, a method for making a composition of the invention, and other products and applications utilizing a composition of the invention. In a preferred embodiment, a quantum dot comprises a light-emissive semiconductor nanocrystal. | 10-21-2010 |
20120113671 | QUANTUM DOT BASED LIGHTING - Systems and methods are described that relate to quantum dot (QD) structures for lighting applications. In particular, quantum dots and quantum dot containing inks (comprising mixtures of different wavelength quantum dots) are synthesized for desired optical properties and integrated with an LED source to create a trichromatic white light source. The LED source may be integrated with the quantum dots in a variety of ways, including through the use of a small capillary filled with quantum dot containing ink or a quantum dot containing film placed appropriately within the optical system. These systems may result in improved displays characterized by higher color gamuts, lower power consumption, and reduced cost. | 05-10-2012 |
20120256134 | FORMULATIONS INCLUDING NANOPARTICLES - The present invention relates to a formulation comprising a medium, one or more stabilizers, and one or more particles comprising nanoparticles included within a host material. In certain embodiments, a stabilizer comprises a HALS stabilizer. In certain embodiments, a stabilizer comprises a UVA stabilizer. In certain embodiments, the formulation includes a HALS stabilizer and a UVA stabilizer. In certain embodiments, nanoparticles have light-emissive properties. Other embodiments relate to a powder obtainable from a formulation of the invention, a composition including a powder of the invention, a coating comprising a formulation of the invention, and products and applications including a particle of the invention. In preferred embodiments, a nanoparticle comprises a semiconductor nanocrystal. In certain embodiments, a host material comprises a polymer. In certain embodiments, a host material comprises an inorganic material. A raw batch formulation and particle obtainable therefrom is also disclosed. | 10-11-2012 |
20120256141 | PARTICLES INCLUDING NANOPARTICLES, USES THEREOF, AND METHODS - A particle comprising nanoparticles encapsulated within a host material is disclosed, wherein the particle includes a coating disposed over at least a portion of the outer surface of the particle. In certain embodiments, nanoparticles have light-emissive properties. In certain embodiments, the coating covers all or substantially all of the outer surface of the particle. The coating can comprise a resin having low oxygen permeability. In certain embodiments, the coating comprises a polyvinyl alcohol compound. In certain embodiments, the coating comprises a polyvinylidene dichloride compound. Other embodiments relate to a powder comprising a particle of the invention, a composition including a particle of the invention, a formulation including a particle of the invention, a coating comprising a particle of the invention, a method for making a particle of the invention, and products and applications including a particle of the invention. In preferred embodiments, a nanoparticle comprises a semiconductor nanocrystal. | 10-11-2012 |
20130037778 | DEVICE INCLUDING QUANTUM DOTS - A method of making a device comprises forming a layer comprising quantum dots over a substrate including a first electrode, fixing the layer comprising quantum dots formed over the substrate, and exposing at least a portion of, and preferably all, exposed surfaces of the fixed layer comprising quantum dots to small molecules. Also disclosed is a method of making a device, the method comprising forming a layer comprising quantum dots over a substrate including a first electrode, exposing the layer comprising quantum dots to small molecules and light flux. A method of making a film including a layer comprising quantum dots, and a method of preparing a device component including a layer comprising quantum dots are also disclosed. Devices, device components, and films are also disclosed. | 02-14-2013 |
20130148376 | STRESS-RESISTANT COMPONENT FOR USE WITH QUANTUM DOTS - A glass tube including quantum dots in a polymerized matrix is described. An optical component and other products including such glass tube, a composition including quantum dots, and methods are also disclosed. | 06-13-2013 |
20140027673 | METHOD OF MAKING COMPONENTS INCLUDING QUANTUM DOTS, METHODS, AND PRODUCTS - A quantum dot formulation substantially free of oxygen and, optionally, substantially free of water and a method of making a quantum dot formulation substantially free of oxygen and, optionally, substantially free of water is described. Also described are products including the quantum dot formulation described herein and related methods. | 01-30-2014 |
20150021521 | QUANTUM DOT-CONTAINING COMPOSITIONS INCLUDING AN EMISSION STABILIZER, PRODUCTS INCLUDING SAME, AND METHOD - The present invention relates to a composition including quantum dots and an emission stabilizer, products including same, and methods, including methods for improving, or enhancing the emission stability of quantum dots. Inclusion of an emission stabilizer in a composition can improve or enhance the stability of at least one emissive property of the quantum dots in the composition against degradation compared to a composition that is the same in all respects except that it does not include the emission stabilizer. Examples of such emissive properties include, by way of example only, lumen output, lumen stability, color point (e.g., CIE x, CIE y) stability, wavelength stability, FWHM of the major peak emission, absorption, solid state EQE, and quantum dot emission efficiency. | 01-22-2015 |
20150049491 | METHOD OF MAKING COMPONENTS INCLUDING QUANTUM DOTS, METHODS, AND PRODUCTS - A glass tube including quantum dots under oxygen-free conditions is described. An optical component and other products including such glass tube, a composition including quantum dots, and methods are also disclosed. | 02-19-2015 |