The inventions in nanotechnologies as practical solutions. Part IV

A brief review of patents is given. The research performed by scientists, engineers and specialists in the area of nanotechnologies and nanomaterials resulted in increased efficiency of construction, housing sector and adjacent fields of economy. For example, the invention «Carbon ceramic fiber-reinforced composite material and method for its production» refers to a class of carbon-based composite materials of heat-shielding, structural, chemical-resistant purposes, can be used under static and dynamic loads when heated to 2000оC in an oxidizing environment (aerospace engineering, construction facilities for special purposes, high-temperature electrothermal equipment, equipment for nuclear reactors, etc.). The technical result of the invention is the strength of the composite increased up to 40% in terms of flexural strength and twice in terms of compressive strength. The specialists can also be interested in the following inventions in the area of nanotechnologies: building construction elements; a method for synthesizing a composite carbon material with metal nanoparticles with transferring a part of their electron density to a carbon matrix; a method of manufacturing marker of fuel and lubricants; wastewater treatment system with nano-modified natural sorbents; nanocrystal, hydrosol of nanocrystalline cellulose and method for producing it; a method for producing membranes for ultrafiltration of aqueous media; a method of obtaining transparent ceramics of yttrium-aluminum garnet; method and device for atomic emission spectral analysis of nanoobjects, etc.