Abstract: Provided herein are hybrid pigments and methods of making the same. The hybrid pigments include a natural polyamide substrate and an acid dye disposed on the natural polyamide substrate. The hybrid pigments are biodegradable, compostable, or both, and provide an environmentally friendly alternative to synthetic polymer particle-based pigments.

Abstract: A water-based, aerosol marking composition that adheres to a variety of surfaces but is removable by mechanical rubbing with a dry cloth or by washing with water is provided. The composition comprises 10 to 50% by weight water; 5 to 50% by weight of a solvent selected from the group consisting of a C6 to C15 aliphatic solvent, an aromatic solvent comprising 10 or fewer carbon atoms, an ether, and an alcohol, or combinations thereof; 0.1 to 4% of an emulsifier having a hydrophile to lipophile balance of from 1.8 to 16.7; a marking agent; and 10 to 45% propellant. In a preferred embodiment the composition lacks or contains only trace amounts of an alkyd-based drying oil, polyvinylpyrrrolidone, or polyvinyl alcohol, or another agent that serves as an adhesive for the pigment particles. In certain embodiments, the composition comprises an inorganic filler and from 0.05% to 3% surfactant.

Abstract: A fluorescent naphthalimide diester dye that is miscible or soluble in a variety of organic compounds such as, for example, mineral oil, polyalkylene glycols, polyolesters, motor oil, gear oil, synthetic oils, and polyalphaolefins, is provided. The fluorescent naphthalimide diester is useful as a tracer to detect leaks within a fluid systems such as, for example, refrigerant systems, transmission systems, and hydraulic systems. The fluorescent naphthalimide diester dye is comprised of a chromophore having the following structure: wherein: Z and Z′ are the same or different, and are esters attached to saturated or unsaturated linear or branched hydrocarbon chains attached thereto, having from 8 to 24 carbon atoms in length, preferably from 12 to 22 carbon atoms in length, most preferably from 16 to 20 carbon atoms in length, and from 1 to 4 double bonds, most preferably 2 to 3 double bonds.

Abstract: Novel water soluble toners for use in ink jet printers, which are stable in water, and which have an acid number of greater than about 175, are provided. The toner, which is preferably fluorescent, is comprised of a novel, cycloaliphatic, polyester dye carrier; and a dye, preferably a fluorescent dye. The invention also relates to an ink which preferably comprises: an humectant, water and a toner dissolved in the water, and a base. The ink preferably has a viscosity less than about 10 cps, preferably less than about 6 cps, most preferably less than about 4 cps. The invention also relates to ink jet cartridges, and ink jet printers, which contain such novel ink, and also to a novel fluorescent yellow dye, which is useful in the novel fluorescent toner and ink jet printer inks. The invention also relates to methods of making such dye, the polyester dye carrier, and the ink jet cartridge.

Abstract: The present invention provides methods and devices for the quantitative analysis of pesticides with fluorescent pigments. The methods include dry mode, fluid mode, and in-field quantitative pesticide analysis. The methods also include dry mode and fluid mode data acquisition procedure by which linear relationships between spectral data and quantity of pesticide may be determined. The devices include a first and a second pesticide analysis device. The first pesticide analysis device includes a spectrophotometer and logic for determining the amount of pesticide present in a sample. The second pesticide analysis device also includes a spectrophotometer and logic for determining the amount of pesticide present in a sample. The second pesticide analysis device is further configured for in-field quantitative pesticide analysis of samples.

Abstract: The present invention provides ultraviolet curable or electron beam curable fluorescent inks and ink concentrates, which cure upon exposure to ultraviolet or electron beam radiation. The synthesis of the fluorescent ink and ink concentrates does not involve the use of volatile organic solvents, so removal of solvents is not necessary during the manufacturing process. The fluorescent inks and ink concentrates display minimal, consistent color shift when cured. The cured fluorescent inks and ink concentrates are solvent resistant, particularly to methyl ethyl ketone, methanol, nonane, and sec butyl alcohol. The fluorescent ink and ink concentrate is comprised of: from about 20 to 90%, preferably from about 30 to 70%, more preferably from about 30 to 60% by weight of an oligomer, which is either a formaldehyde oligomer or a cyclic-aliphatic oligomer; from about 0.

Abstract: An aqueous dispersion of a fluorescent pigment comprising: a water insoluble polymer; fluorescent dye; emulsifiers; and water. The polymer comprises: a water insoluble vinyl monomer free of polar groups; vinyl nitrile; a vinyl monomer containing sulfonate groups; and a polar vinyl monomer from the group consisting of: polar acrylate esters; vinyl acetate; polar methacrylate esters and a substituted acrylamide containing hydroxyl or carboxylic ester groups. The invention also relates to a fluorescent pigment and method for preparing the dispersion and pigment.

Abstract: Crystalline thermoplastic opaque polyester resins having substantial amounts of amorphous regions are disclosed. When fluorescent dyes are dispersed into these resins superior fluorescent pigments result.

Abstract: A thermoplastic, organic, fluorescent pigment affording good viscosity control in solvent. A one-pot production of the pigment. Pigment having a fluorescent dye and a polymer matrix containing a dicarboxylic acid, an organic diamine and, optionally, alkanolamine, aliphatic alkanolamine, aliphatic diol, cycloaliphatic diol, modifiers, and cross-linkers.

Abstract: An aqueous emulsion of a resin which contains a fluorescent dye comprising:______________________________________ INGREDIENTS % BY WEIGHT ______________________________________ A water insoluble 25-50 tetra polymer Fluorescent Dye .1-10 Anionic Emulsifier .2-10 Water Balance ______________________________________with the tetra polymer comprising: ______________________________________ INGREDIENTS % BY WEIGHT ______________________________________ A. A water insoluble vinyl 52-65 monomer free of polar groups. B. Acrylonitrile 25-35 C. A vinyl monomer containing 1.5-4.5 sulfonate groups. D. A polar vinyl 5-15 monomer from the group con- sisting of: 1. Polar acrylate esters 2. Vinyl acetate 3.