511results about "Sol preparation" patented technology

The present invention relates to hyperbranched copolymers and compositions in which they are incorporated, e.g., colorant compositions, tint bases, and coatings such as latex paint, and methods for making such copolymers and compositions.

Nanoparticulate titanium dioxide coating produced by educing flocculates of titanium dioxide nanoparticles from a titanyl sulfate solution and dispersing the nanoparticles in a polar sol-forming medium to make a sol suitable as a coating usable to impart photocatalytic activity, U.V. screening properties, and fire retardency to particles and to surfaces. The photocatalytic material and activity is preferably localized in dispersed concentrated nanoparticles, spots or islands both to save costs and leverage anti-microbial effects.

Freestanding particles comprising a plurality of segments, wherein the particle length is from 20 nm to 50 μm and the particle width is form 5 nm to 50 μm.

A method is disclosed for the manufacture of colloidal rod particles as nanobarcodes. Template membranes for the deposition of materials are prepared using photolithographic techniques.

Synthetic methods for the manufacture of segmented nanoparticles are described.

We disclose a colorless composition comprising silver particles and water, wherein said particles comprise an interior of elemental silver and an exterior of ionic silver oxide, wherein the silver particles are present in the water at a level of about 5–40 ppm, and wherein the composition manifests significant antimicrobial properties. Methods of use of the composition are described.

A simple method is disclosed to produce oil soluble nano particle size additives with significantly higher flash points to improve the safety aspects of these products especially when used in, around, and near high temperature combustion equipment.

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material.

Each of the metal nano-particles present in a dispersion, which comprises at least one metal selected from the group consisting of precious metals and transition metals or an alloy of at least two metals selected from the foregoing metals, comprises a metal particle in which an organic metal compound of a fatty acid and / or an amine-metal complex is adhered to the periphery of the metal particle. This organic metal compound and the amine-metal complex are admixed together in a solvent and then the resulting mixture is subjected to a reducing treatment to thus form a dispersion containing metal nano-particles in a concentration of not less than 5% by mass and not more than 90% by mass. The resulting dispersion is applied onto the surface of a base material, followed by drying the applied layer of the dispersion and then firing the dried layer of the dispersion at a low temperature to thus form a thin metallic wire or a metal film having conductivity.

Freestanding particles comprising a plurality of segments, wherein the particle length is from 10 nm to 50 μm and the particle width is form 5 nm to 50 μm.

Disclosed are hydrophilic functionalized silica compositions that are stable and do not show significant pH increases upon heat sterilization. Also provided are methods to make hydrophilic functionalized silica compositions by reacting acidic silica particles with hydrophilic organosilanes. Further provided are methods of separating components in a mixture using hydrophilic functionalized silica compositions.