Patent classifications
C09D7/67
Self-cleaning coating composition
A coating composition has 5-15% by weight of a polymeric binder selected from a polyester polyol, an acrylic polyol, an epoxy, silicone, a silicone hybrid and a fluoropolymer. The composition has 20-40% by weight of microparticles, where the microparticles are made of a polyamide, a polyethylene, a polypropylene, a polyurea, a polyurethane, a polymethyl methacrylate, a polystyrene or mixtures thereof and the microparticles have a mean particle diameter d.sub.50 size ranging from 5 m to 60 m. The composition has 2-12% by weight of nanoparticles, said nanoparticles are made of inorganic oxides with a primary particle size ranging from 5 nm to 50 nm; 0-15% by weight of a crosslinker having reactivity to the polymeric binder; 0-20% by weight of pigments and/or fillers, and 40-80% by weight of an organic solvent.
Nanoporous cerium oxide nanoparticle macro-structures in paints and coatings
The present invention is directed to nanoporous cerium oxide nanoparticle (NCeONP) macro-structures in paints and coating formulations.
METHODS AND COMPOSITIONS PROVIDING HIGH PERFORMANCE THERMOPLASTIC NANOCOMPOSITE LAYERS FOR USE IN PACKAGING APPLICATIONS
This disclosure provides novel thermoplastic nanocomposites having monomodal, bimodal, and multimodal mineral particles dispersed within the polymer matrix to provide high performance thermoplastic nanocomposite barrier layer(s). The thermoplastic nanocomposite barrier layer enhances barrier performance to include moisture, water, and oxygen barrier characteristics used in consumer and industrial packaging applications. Mineral fillers, such as clay nanoparticles combined with micro and colloidal diatomaceous earth, such as calcium carbonate being one example. Bimodal and multi-modal particle combinations can play a significant role in improving intercalation and exfoliation of nanoparticles within the thermoplastic matrix during the compounding and extrusion. The present disclosure includes descriptions of thermoplastic nanocomposites as part of blown films, paper extrusion coatings, and extrusion laminations. The barrier layers may be part of single and multi-layer thermoplastic layers used as films and paper coatings in the range of about 6 to 600 g/m2.
DEVICE COVER WITH TOPCOAT LAYER
An example device housing comprises a substrate, and a topcoat layer including a topcoat formulation disposed on a surface of the substrate. The topcoat formulation includes a polymer, a pigment including zirconium dioxide nanoparticles present in an amount ranging from about 0.3 weight percent to about 5 weight percent of a total weight of the topcoat formulation, and a balance of water.
HARDCOAT COMPOSITION COMPRISING METHYL OR ETHYL TRIALKOXY SILANE, ARTICLES AND METHODS
Articles are described comprising a substrate and a hardcoat layer disposed on the substrate. The hardcoat layer comprises the hydrolyzed and condensed reaction product of a composition comprising: i) first hydrophobic silane monomer(s) having the formula R.sup.1Si(OR).sub.3 wherein R and R.sup.1 is methyl or ethyl; ii) optional second silane monomer(s) having the formula (R.sup.2).sub.4-mSi(OR).sub.m or Si(OR).sub.4, wherein R, R.sup.1 and R.sup.2 are organic groups with the proviso that R.sup.1 is not methyl or ethyl and m ranges from 1 to 3. The hardcoat layer may further comprises 10 to 30 wt. % silica nanoparticles. A surface layer comprising a hydrophilic silane may be disposed on the hardcoat layer. Also described is a method of using an article having a rewritable surface, hardcoat coating compositions, and methods of making hardcoat compositions and articles.
ULTRAVIOLET (UV) ABSORBING INKS AND FILMS
Ultraviolet (UV) absorbing inks and films for surfaces such as glass and/or plastic are provided that include patterns visible to avian eyes, but invisible to a human at least ten feet away. Such invention is aimed at reducing the number of window strikes that result in bird deaths. A formulation may include a binder, a carrier. A formulation may include a base configured to dissolve and solubilize the binder such that it can be applied to the carrier. A formulation may include at least one of an ultraviolet (UV)/visible (VIS) absorbing (UAC) component and a UV/VIS reflective (URC) component.
ANTIBACTERIAL WATER-BASED PAINT THAT IS ACTIVATED BY METALLIC NANOPARTICLES
An antibacterial paint composed of a water-based paint functionalized by metallic nanoparticles that is used on wall supports to target bacteria, pathogenic strains, and nosocomial infections. Metallic silver (Ag) nanoparticles with average diameters of 83 nm synthesized by an aqueous method using PVA and an aqueous solution of silver ion. The water-based paint was created with a weight of titanium dioxide ranging between 7 and 12%, a weight of filler ranging between 25 and 35%, a weight of emulsion binder ranging between 30 and 40%, a weight of water ranging between 15 and 20%, a weight of dispersing agent ranging between 0.3 and 0.5%, a weight of silicone antifoam agent ranging between 0.15 and 0.3%, and a pH value ranging between 7.5 and 8.
COMPOSITIONS FOR PROTECTING AND/OR REJUVENATING BUILDING COVERING MATERIALS
A composition, which can prevent or and/or reverse age-associated damage to a building covering material (e.g., shingles or roof membranes). The composition includes a base including an organic solvent and nanoparticles, and a bio-based oil, wherein the composition includes an amount of the bio-based oil and of the base in a wt.:wt. ratio of from about 20:80 to about 50:50, and wherein the composition is adapted for application on a surface of the building covering material.
Method for tuning gloss in paint formulations
The present invention relates to a method for preparing a multiplicity of containers of paints or pre-paints from separate vessels containing an aqueous solution of a rheology modifier, optionally an aqueous dispersion of an opacifying pigment, an aqueous dispersion of polymer particles, and an aqueous dispersion of organic polymeric microspheres. The process of the present invention provides a simple and cost-effective way of preparing a wide variety of a large quantity of contained and finished paints at point-of-sale.
Thermal insulation coating and method for applying the same
The present application discloses a thermal insulation coating and a method for applying the same. Raw materials for preparing the thermal insulation coating includes PVDF resin, water-based epoxy resin solution, hollow glass microbead, ytterbium modified nano-powder, diluent, polyvinyl alcohol, titanium dioxide powder, rare earth, negative ion powder, and leveling agent.