26.03.2025 у. at 14:30 o'clock Tojiboyev Begijon Mamitjonovich was defended on the topic: «Methodological principles of the occurrence and reduction of internal stresses during the formation of composite polymer and paint coatings for mechanical engineering purposes, allowing the development of effective compositions and technology for their production», in the specialty: 02.00.07 – "Chemistry and technology of composite, varnish and rubber materials" and 05.02.01 - "Materials science in mechanical engineering. Foundry production. Heat treatment and pressure treatment of metals" (technical sciences) for the degree of Doctor of technical sciences (DSc).