For last 10 years creating of new patents in the field of nonisocyanate polyurethane have passaged Chinese inventors. Chinese inventions in the field of NIPU consist about 15% all such inventions, but that are not pioneer ones, especially for foam application.

Keywords: patents, nonisocyanate polyurethanes, oligomeric cyclocarbonates

The increasing complexities in the development of new fire-protective coatings hinder the attraction of private investments and impede the progress of innovation. The review provides an overall picture of the research and specifically illustrates the extraordinary diversity of their directions and explains the inherent reason for such diversity. The goal of this review is to establish an information foundation for a critical analysis of the feasibility of private investments in developments in this field and to show some possible ways. The wide range of choices for specific components in fire-protective coatings and the diversity of mechanisms they employ result in a factorial number of possible combinations. The variety of properties of these components and the complexity of their interactions make it difficult to assess the outcomes of their selection unequivocally without conducting experiments during the development of new materials. Therefore, confident prediction of the results of new research is extremely challenging. As a consequence, there is a broad spectrum of directions and sub-directions in ongoing developments. Summing up the results of these investigations is further complicated by the difficulty of testing materials for aging parameters and resistance to external influences. The wide range of choices for specific components in fire-protective coatings and the diversity of mechanisms they employ result in a factorial number of possible combinations. The diverse properties of these components and the complexity of their interactions prevent a definitive evaluation of the results of their inclusion in the composition prior to conducting experiments in the development of new materials. Therefore, confident forecasting of the results of new research is extremely challenging. As a consequence, there is a broad range of directions and sub-directions in ongoing developments. Summing up the results of these investigations is further complicated by the difficulty of testing materials for aging parameters and resistance to external influences. The high uncertainty in forecasting the prospects of specific developments stimulates the advancement of simulation methods for compositions and coating manufacturing technologies, as well as the prediction of their effectiveness, etc. However, these methods only provide a partial increase in the reliability of expectations. A more thorough execution of a feasibility study is recommended to substantiate venture investments. One of the additional approaches capable of enhancing its credibility is the utilization of non-traditional specialized methods for researching patent information.

Keywords: fire-protective coatings, specifically illustrates the extraordinary diversity, prospects of specific developments stimulates, simulation methods for compositions and coating manufacturing technologies

The article researches the influence of the length of Ni-nanotubes on the anisotropy of the mechanical properties of nanotubes using the Young's modulus as an example. In this case, the influence on the anisotropy of both the single-crystal symmetry of the structure and the predominant spatial distribution of crystallographic axes is taken into account.

Keywords: anisotropy of mechanical properties, elastic constants, Young's modulus, anisotropy parameter

Compositions and their properties for protective coatings based on liquid ebonite and water dispersion of CSPE were described. The experimental data of different testing are confirmed their high effectivity for corrosion protection.

Keywords: corrosion protection, liquid ebonite mixtures, oligobutadiene, water dispersion CSPE, service properties

The stability of three-phase foams stabilized by particles and surfactants (surfactants) of various nature has been studied. The varying degree of hydrophobization of particles by short-chain surfactant hexylamine may be accompanied by a change in the properties of the dispersed system from high-strength and low-stability foams to structured low multiplicity. A decrease in the stability of foams stabilized by hydrophobized titanium oxide particles at a concentration of long-chain surfactant - cetylammonium bromide Cпав≥Сккм may be due to a decrease in the edge angle of wetting of solid particles.

Keywords: foams, solid particles, surfactants, stability

The practical application of NIPU based on epoxy-amine compositions and five-membered CCs in coatings, sealants, adhesives, etc. was largely developed back in the USSR by O. Figovsky &V. Stroganov. Opportunities for optimizing the production of the key component of NIPU, cyclic carbonate, using carbon dioxide are considered. The article discusses sustainable synthesis routes for NIPC for industrial applications. An overview of solutions for the production of foam materials based on non-isocyanate polyurethanes is given.

Keywords: nonisocyanate polyurethanes, oligomeric cyclocarbonates, green solutions

Studies have been carried out to determine the microhardness of the base metal, the microhardness at the fusion boundary and the deposited coating. The influencing factors of the value of the height of the protective coating of the sample on the value of microhardness are considered. Graphs of the distribution of microhardness in the base metal and the protective coating of samples by gas-powder surfacing are presented.

Keywords: microhardness, protective coatings, gas-powder surfacing, fusion boundaries

This article proposes an experimental determination of the density of the interparticle fusion surface during sintering of hot-deformed powder materials. The study analyzes the physics of the processes of forming microstructures of splicing surfaces at various stages of producing powder materials. The peculiarities of deformation processes in the formation of materials by hot pressure treatment are considered and physical changes that undergo powder grains are investigated. The nature of the boundaries of the splicing surfaces on the investigated objects, as well as the process of pore healing during compaction of molds based on steel from two types of charge based on coarse and fine iron powder with different porosity are traced.

Keywords: physics of processes, quantitative characteristics, surface area of splicing, specific surface of splicing, hot-deformed powder blanks, structure formation, microstructures, surface deformation, pore healing, particle size

In this article, the study of the influence of the parameters of friction welding with mixing on the mechanical and microstructural properties of AA2195-T0 and T8 is considered. This article describes the results of an experimental study of the evolution of mechanical properties and microstructure of a friction-stirred welded joint of aluminum-lithium alloy 2195.

Keywords: friction welding with stirring; process parameters; mechanical properties; aluminum-lithium alloy