26.01.2022 y. Madrakhimov Alloberdi Makhmadalievich was defended on the topic: «Development of a waste-free technology for the production of conditioned wood-fiber filler from cotton stems and composite wood-plastic plate materials from them», in the specialty: 02.00.07- "Chemistry and technology of composite, varnish paint and rubber materials" for the degree of Doctor of Philosophy in technical sciences (РhD).